www.harrodhorticultural.com Little book of pests

✓ Easy pest identification ✓ Recognising plant damage ✓ FREE advice & tips service ✓ NEW range of What’s inside… Pest control is one of 3 the biggest challenges in the ornamental or Ants 4 vegetable garden. Even by ( niger, Lasius favus, Myrmica sp) ✓children ✓pets ✓wildlife Caterpillars 6 rotating crops, companion Carrot Root Fly 8 planting, selecting resistant ✓Natural Choice Pest Control: Chafer Grubs 9 varieties and timing Fungus Fly 10 planting, it is inevitable that Nematodes USE OUTDOORS Leatherjackets 11 you’ll still encounter pest problems along your Although total removal growing journey. It’s therefore essential that or elimination of ants Leaf Beetles 12 you are able to accurately identify the pests from gardens is difficult Mealy Bugs 14 and/or the damage they cause and then have to achieve, it is possible Raspberry Beetle 15 to drive them out of the controls in place to eliminate the threat. areas using nematodes Mites 16 This 24 page book is a handy ‘what, where, Black ants infesting a garden lawn causing ant mounds that can be applied Slugs & Snails 18 when and how’ guide to common pests. Within directly to ant colonies Scale 20 these pages we are also delighted to introduce when the soil Julian Ives, Harrod Horticultural’s Pest Control temperature is 10ºC/50ºF. One application will Vine Weevil 21 Expert, whose years of experience gained from gain control of ants already present in the soil Whitefly 22 where the tiny microscopic worms act as an studying pests and advising different types of irritant to ants causing them to leave their Order Form 23 growers is now available to our customers via colonies and nests. For best results, keep the soil FREE advice and monthly tips (see left & moist 2 weeks before application and water back cover). directly into the ant mounds in dull conditions. What’s eating N.B. not suitable for indoor application. Then there’s our NEW Natural Choice Pest Black garden ant milking black bean aphids your plants? Control range featuring nematodes, natural Ant Nematodes Large What to look out for… (treats up to 50 colonies) GPC-021 £19.95 Let Julian Ives, Harrod predators, sprays, traps and barriers. Together Ant Nematodes Medium Red and black ants are nuisance pests Horticultural’s Pest with our website it has 200+ organic (treats up to 16 colonies) GPC-010 £9.75 rather than plant damaging ones. Control Expert, help you solutions, each one being effective and totally Ant Nematodes Small safe around children, pets and wildlife. Armed Plants may suffer if ants are nesting in (treats up to 6 colonies) GPC-119 £6.95 identify your pest the containers they are growing in but with these you’ll find that it is much problems and/or advise the main problem is their presence in Agrothrin for Ants USE INDOORS easier than you think to kill or deter you on the best organic lawns or houses where they are active For indoor invasions by ants, or for use in between garden critters without harming the paving slabs and under patios, we recommend solutions. Email from early April to late September. environment, enabling you to Damage to lawns is caused by ant using natures own insecticide - pyrethrum. [email protected] Agrothrin is supplied as a pyrethrum powder, enjoy a healthier harvest. mounds (pictured above), where soil which is a 100% natural insecticide made from or write to Julian Ives, that has been excavated for nests Harrod Horticultural, ground up chrysanthemum leaves so is completely appears on the surface. This impedes organic. The 100g puffer packs are specially Pinbush Road, Lowestoft, mowing and the presence of ant adults STEPHANIE HARROD designed to help you access ant colonies that are Suffolk, NR33 7NL. on lawns can be unpleasant for children difficult to reach whilst the 1kg pack can be applied and adults when being used for liberally in more open areas. Agrothrin will Postage and Packing is £2.00 if your order ONLY contains recreation. Ants will also make nests also provide a safe way to control indoor products from this booklet (except netting, fleece and FREE under paving slabs too, in flower beds pests like cockroaches and silverfish by those on page 19). If your order includes these exceptions or and will sometimes enter houses. applying behind stoves, fridges and other monthly other items from our website and main catalogue, then please note that our Ants are known to milk places where pests congregate. pest control advice standard charge is £4.95 unless your order includes an item with a yellow colonies for the honeydew they produce Agrothrin for Ants lorry (£12.95) or red lorry (£19.95). Full conditions on page 23. to your inbox. (pictured above). This has little effect (2 x 100g puffer packs) GPC-113 £9.95 Just provide us with on the aphids but ants will sometimes Agrothrin for Ants your email address for Did you know that we have over 200+ organic pest fight off aphid predators, which hinder (1kg pack) GPC-114 £14.95 regular and timely the natural pest control of aphids. tips from our expert controls in our Natural Choice Pest Control range at Julian Ives. www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 3 FREE monthly pest control advice Aphids to your inbox. Just provide us with your email address for regular and (Aphidoidea family) timely tips from our expert Julian Ives. ✓children ✓pets ✓wildlife

✓ Natural Choice Pest Control: USE INDOORS USE INDOORS Aphids have many natural enemies, OR OUTDOORS some of which can be used to combat aphids in gardens and greenhouses (see right). Due to the rapid reproductive rate of aphids it often requires a mix of these natural predators together with traps and an effective fatty acid spray (see FOR HEAVY INFESTATIONS EARLY INDOOR CONTROL below) to control them effectively. Lacewing larvae - for spot treatments & heavy infestation Apply parasitic to get early control & minimise damage Sticky Pest Traps Aphid Kill using Aphid Control Aphid Prevent Gain early control by hanging these Lacewing Larvae using Ladybirds using Parasitic Wasps up in glasshouses in the winter and Aphids - their high reproduction rate makes them a Lacewing larvae are ideal Ladybird adults are very Use the tiny parasitic wasps, troublesome pest in the garden early spring to catch flying aphids. These are a pesticide free, non-toxic predators for controlling aphids effective predators of aphids Aphidius colemani, early in the when tackling spot treatments and are best used for indoor season as a preventative What to look out for… way of monitoring problems and to help with the timing and selection and heavy infestations on low control, where in a contained measure in indoor locations. The aphid family is a large one of control. Can be used around all growing plants, like bedding environment they can eat up to Putting this down (when containing many different aphids that edible and non-edible plants. plants and lettuce (temperatures 5,000 aphids in their lifespan! If temperatures are above 12°C ) are the most troublesome of all garden 10cm x 25cm H. of 15ºC+). The larvae are aphids are attacking plants before signs of problems emerge insects. They include commonly known 10 Pack GPC-159 £4.95 between 2-10mm long and one outdoors, then it is better to opt will not only minimise damage insects like Green Fly, Black Fly and can eat over 300 aphids for ladybird larvae that can also but also the cost of dealing with per day when applied between be used indoors too. The larvae a larger problem later on. 3 x Woolly Aphid. Female aphids can Organic Savona reproduce asexually, which means as May and September. They also can eat 100-150 aphids per day 250 parasitic bottles Fatty Acid Concentrate benefit by feeding on some and can be used on a wide supplied, each one sent soon as they are born they can Here’s a fatty acid, non-toxic spray that is other pests such as spider mites variety of plants where the separately every 2 weeks. One reproduce and they do this in very ideal to control aphids, red spider mites, and thrips. Sprinkle the shaker supplied jute bag helps with bottle can be applied to an area large numbers. They normally whiteflies and mealy bugs on all edible and bottle contents out over the their distribution on larger up to 250m2. overwinter on host plants before non-edible plants where it kills on contact. It plants that are infested with plants. Hang 1 bag of larvae on 3 x 250 Wasp Bottles moving to other plants in the spring won’t leave any harmful residue on the aphids, either indoors or a soft fruit plant, tree or shrub, GPC-133 and summer that include the rose, plants and it’s 100% safe around children, outdoors, where one bottle of or 2-3 for larger trees. Ladybirds £29.95 many trees and vegetables. pets and for the environment too. The 1ltr 500 lacewing larvae will treat up and their larvae can be applied USE ADULTS Damage from aphids can be severe, concentrate dilutes to 50ltrs (to cover an area to a 50m2 area (repeat treatment from early May (only apply INDOORS of 500m2) that represents great value for as required). It’s important to larvae in temperatures of 10ºC+ OR LARVAE especially when they reach high FOR LIGHT IN/OUTDOORS numbers. They are sap sucking insects, money and it should be applied when pests note that the lacewing larvae indoors or outdoors) but INFESTATIONS are seen (indoors or outdoors). You can buy weakening plants and stunting growth. are not suited for use in tall neither should be introduced our 1ltr empty spray bottle for diluting into As they feed aphids produce honeydew, plants and crops, as they can after September. Repeat and for easy application. find it difficult to reach the treatments as required. which is excreted onto plants. Sooty 1ltr Concentrate growing point where many of 50 Ladybird Larvae moulds then grow on the honeydew, – dilutes to 50ltrs the aphids congregate. They & Jute Bag which can inhibit photosynthesis in GPC-141 £17.45 also do not like plants with hairy GPC-530 £15.45 plants. Aphids also transmit plant 1ltr Empty Adult stems or leaves as this impedes 25 Ladybird Adults ladybirds viruses. These can distort plants, Spray Bottle their movement. Shaker Tube can eat 5,000 sometimes reducing yield in fruit GPC-142 £1.95 500 Bottle GPC-134 £17.95 GPC-527 £23.95 aphids each producing plants. 1000 Bottle GPC-135 £29.95 in their lifespan

4 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 5 FREE monthly pest control advice Caterpillars to your inbox. Just provide us with your email address for regular and (Lepidoptera group of insects) timely tips from our expert Julian Ives. ✓children ✓pets ✓wildlife

✓Natural Choice Pest Control: ✓Natural Choice Pest Control: Nemasys Caterpillar Killer Trap Gain control of caterpillars Codling moth traps can be used from July by directly earlier in the year [from May watering nematodes onto onwards] to catch and them, where once in monitor male codling moths. contact they will enter and This helps warn of caterpillar kill. 3 packs are supplied attack later in the year and and a pack should be reduces the amount of applied weekly for three fertilised females, leading to Large cabbage white butterfly caterpillars feed on the weeks; this ensures that fewer caterpillars. If adult moths outside leaves and the smaller variety in the heart of caterpillars emerging from over a few are caught then follow up with our brassicas which causes destruction. weeks will be caught by the treatment. killer nematodes below to seize control Caterpillar nematodes can also be used against in early Autumn. The trap is uniquely designed Butterflies Sawfly larvae, even though they belong to a without sticky inserts and requires only one different family. Good results have been pheromone lure per season. The trap, which Butterflies lay eggs that develop into The caterpillars associated with the codling moth achieved on Gooseberry Sawfly larvae. All 3 covers 1/2 acre or 16-20 trees, can be re-used each caterpillars. Some caterpillars can be should be treated early or later in their lifecycle packs are delivered at once with each one year and replacement lures ordered. destructive pests of plants. They mainly treating an area up to 40m2. Trap GPC-214 £7.95 feed on leaves, although some feed on 3 Packs GPC-261 £22.95 Moths Replacement Lure GPC-152 £4.95 roots or bore into plant stems, or feed on Moths are mainly nocturnal. The moth seeds, berries and fruit. There is virtually larvae are leaf miners whereas the Plum Fruit Moth Trap Cabbage white butterfly can be Plum fruit moth is another fruit pest that mainly no part of the plant they will not eat! The prevented from laying eggs by codling moth caterpillars tunnel into causes damage to plums. The pinkish-white lifecycle comprises of , caterpillar, using butterfly netting fruit, especially apples, in the mid to late caterpillar with a brown head feeds inside fruit and adult. The pupa part of the summer. The caterpillars are small and which then looks dehydrated and tends to fall lifecycle is usually in the soil. Butterflies white in colour with brown heads. They early. This pheromone trap, as above but with an tend to be active in the day and more are very difficult to treat once inside the alternative seasonal lure, is ideal for attracting and brightly coloured than moths but there fruit, so have to be treated catching male moths. are exceptions. earlier or later in GPC-028 £7.95 Cabbage white butterfly appears in their lifecycle. Replacement Lure GPC-031 £4.95 two common forms. The large cabbage Nemasys Codling white has a caterpillar with yellow and Moth Killer black markings and feeds on the outside leaves. The small cabbage white is pale If codling moths are caught in traps, then this treatment will further reduce green and is much smaller, feeding their overwintering numbers in the mainly on the inner of brassicas, such early autumn. Codling moth pupae as the hearts of cabbages. can be controlled on fruit trees and in the ground Codling moth from September to October (+14ºC temperatures) Prevent cabbage white butterflies from caterpillar by applying to the ground below the tree and to entry hole laying eggs by protecting plants with the tree trunk itself, where pupae overwinter. One butterfly netting. You can SAVE £££s on pack will treat up to 20 trees (40m2) to break the saver rolls at www.harrodhorticultural.com pest’s lifecycle. Supplied as 3 packs that are all Codling moth delivered at once for weekly treatments. or call 0845 402 5300 for details. caterpillar 3 Packs GPC-262 £22.95 damage

6 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 7 Carrot Root Fly Chafer Grubs (Psila rosae) ✓children ✓pets ✓wildlife (Phyllopertha horticola and Hoplia philanthus) ✓children ✓pets ✓wildlife

✓Natural Choice Pest Control: ✓Natural Choice Pest Control: Carrot Root Fly Trap Garden Chafer Trap Place this system at the end Attract and catch the Garden Chafer of the rows in mid April to beetle by placing this trap on or near intercept the 1st generation lawns in early May. It covers an area up of carrot fly. The traps can to 1/2 acre and contains a special be removed in late May and attractant that lures the beetles. This then repositioned in mid helps warn of future attack from Chafer July for the 2nd generation and finally removed at grubs and helps reduce numbers. Carrot root fly adult lays eggs twice a year the end of August. If more than 1 carrot fly is caught Please note the trap only works on per day then take remedial action with the species of the Garden Chafer beetle. nematodes or a mesh screen recommended below. GPC-117 £16.95 Trap GPC-129 £13.95 Replacement Lure GPC-032 £5.95 5 x Sticky Traps Refill Pack GPC-131 £4.95 Nemasys Chafer Grub Killer Anti-Carrot Root Fly Screen Control Chafer grubs from late July to early Autumn Carrot root flies do not fly (temperatures above 12ºC) with nematodes. These much above 50cm high so Chafer grubs cause lawn damage from late summer tiny microscopic worms are watered into the soil this 61cm high x 8 metre where they will seek out the chafer grubs and long ultra fine insect mesh What to look out for… attack the pest by entering natural body openings. Chafer grubs develop from eggs laid by Carrot root fly larvae attacks the roots & then burrows barrier is ideal protection Once inside, they release bacteria that stops the around crops in raised Chafer beetles, such as the May Beetle. pest from feeding which quickly kills it. The What to look out for… beds or the open ground. The two most common species in the nematodes then reproduce inside the dead pest The Carrot Root Fly is a small fly, Just push the aluminium tube supports into the UK are the Garden Chafer and the and release a new generation which disperse and about 8mm long, with a red to brown soil around your area and secure the mesh with Welsh Chafer. Adult Garden Chafer look for further prey. clips. It will also shield against wind, flea beetles, One pack treats up to 100 head, a shiny blackish body and pale beetles have a metallic green head and rabbits, cats and rodents too! body with brown wing cases and their square metres of lawn with only legs. The female lays its eggs near host GDN-448 £32.95 Welsh cousins have a black head and 1 application required. plants and will target carrots, parsley, GPC-290 £29.95 Carrot Root Fly Killer body with reddish brown wing cases. parsnips and celery. There are normally Simply water these The grubs have white bodies, which two to three generations a year. The nematodes into the soil curve into a C shape with light brown first eggs are laid from overwintering shortly after your carrot heads. The size varies between species adults in April/May and the second seeds have germinated. from 9mm-30mm in length. generation in July/August. The eggs Repeat treatment for each Damage is caused by the grubs sowing. The nematodes hatch into larvae after about 7 days attacking the roots of grass and turf. search out and kill carrot root fly larvae. One pack Sometimes they can also be found in depending on the temperature. treats up to 12 square metres of area. Apply once Infected chafer grubs - the result of using nematodes flower beds and containers. Lawns in Damage is caused by the larvae in late April/early May and once in late July. damaged areas go yellow and the grass attacking the roots first. Carrot leaves GPC-136 £9.95 is often easy to pull away due to the root Postage and Packing is £2.00 if your often start turning red and the plant order ONLY contains products from this SAVE £££s with insect mesh saver damage. The grubs also attract looks spindly. Eventually the carrot root booklet (except netting, fleece & those on p.19). If packs at www.harrodhorticultural.com and birds to lawns, which rip up the turf fly larvae burrows into the carrot root your order includes these exceptions or other items from They are ideal for placing over looking for them, thereby causing our website and main catalogue, then please note that itself forming mines. Damaged roots are carrots and late sowings to miss the serious damage. Most damage is caused our standard charge is £4.95 unless your order includes often susceptible to secondary rots. 1st generation of carrot root fly. in the late summer and early autumn. an item with a yellow lorry (£12.95) or red lorry (£19.95).

8 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 9 Fungus Fly Leatherjackets (Sciaridae family) ✓children ✓pets ✓wildlife (Tipula oleracea) ✓children ✓pets ✓wildlife

✓Natural Choice Pest Control: ✓Natural Choice Pest Control: Sticky Pest Traps Leatherjacket Killer The first step in preventing and Leatherjacket, the prolific lawn pest, can be controlling Fungus flies is the use of controlled by nematodes, the most effective yellow sticky traps which attract and natural solution. These tiny microscopic worms catch the pest. This will help to should be watered into the soil beneath the reduce numbers and lower the grass in late summer where applications should amount of eggs laid which is be made 1-2 weeks after the first adult daddy- particularly important given that long-legs have been spotted. It’s at this point Sciarid/Fungus fly larvae chews through roots they develop into larvae which that you will know that they will have laid their causes the damage to young plants. The sticky eggs and by washing the nematodes in well traps also act as an early warning of the pest too they will reach the roots where the and will catch other small flying insect pests such leatherjackets will be. The nematodes seek out as whitefly and aphid. 10cm x 25cm H. the leatherjackets and attack the pest by 10 Pack GPC-159 £4.95 entering natural body openings. Once inside, they release bacteria that stops the pest from Fungus Fly Killer feeding, thereby quickly killing the pest. They do To control the Fungus fly Leatherjackets feed on grass roots not stop there. The nematodes reproduce inside larvae introduce the What to look out for… the dead pest and release a new generation of nematode Steinernema hungry infective nematodes, which disperse and Leatherjackets are the larvae of crane Sciarid/Fungus fly adults have a lifespan of 1 week feltiae in soil search for further prey. Although the optimum flies, sometimes known as daddy-long- temperatures of 10ºC+. time for application is late August to end of What to look out for… Not only will this prevent legs. The larvae are grey-brown in colour October (only 1 application required if the Fungus flies, sometimes known as Sciarid the damage that the Fungus fly larvae causes and are normally found in the soil under timing is right), a Spring treatment can be or Fungus gnats, can pose a threat to but it will stop the development of the flies. This lawns. They feed on grass roots and are carried out if the soil temperature is above 10ºC. seedlings and cuttings in greenhouses and is significant because it breaks the cycle of the therefore a pest of lawns and grass Leatherjacket Killer Small polythene tunnels whilst even mushroom flies going on to lay further eggs which would areas. This turns the grass yellow in Treats up to 12 square metres. then create more larvae which multiplies the crops can be attacked. In temperatures of patches and weakens plant roots. In GPC-022 £9.95 problem. The nematodes are very easy to apply 10ºC-12ºC+ they can build up into very severe cases the lawns start to die. The by watering into the compost or soil where the Leatherjacket large numbers and become a nuisance secondary damage caused by larvae are present. The nematodes then quickly Killer Large Leatherjackets can be worse than the pest, flying up when disturbed in clouds of enter and kill the Fungus fly larvae. One pack Treats up to flies. Fungus flies complete their lifecycle treats an area of 12 square metres or primary, as birds and animals will rip up 100 square metres. lawns looking for the larvae to eat. in about six weeks where the life span as approximately 160 x 1 litre pots. GPC-285 £16.95 an adult is about one week. GPC-118 £9.95 Occasionally Leatherjackets can occur in Damage is caused by the larvae of the vegetable beds and flower beds. flies, chewing on the roots and bringing The daddy-long-leg adults lay eggs in disease and fungi into contact with the What’s eating lawns during the late summer and often young plants. The areas where the fly larvae your plants? high numbers of daddy-long-leg adults feed provide easy access points for harmful are observed prior to egg laying. The Postage and Packing is £2.00 if your fungi. The larvae are whitish with a black Don’t struggle and get eggs quickly develop into larvae, which order ONLY contains products from this booklet (except netting, fleece & those on p.19). If head and are up to 5mm in length. These start feeding on grass roots. During the frustrated with pests, e-mail your order includes these exceptions or other items from insects thrive in humid, damp conditions, winter they stop feeding and sink deeper [email protected] our website and main catalogue, then please note that particularly in compost. Fungus fly adults into the soil, and as soil temperatures rise our standard charge is £4.95 unless your order includes cause in-direct damage by spreading fungal for FREE expert advice. in the spring, so do the Leatherjackets an item with a yellow lorry (£12.95) or red lorry (£19.95). spores of diseases and plant viruses. and they start feeding again.

10 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 11 FREE monthly pest control advice Leaf Beetles to your inbox. Just provide us with your email address for regular and (Aphidoidea family) timely tips from our expert Julian Ives. ✓children ✓pets ✓wildlife

Leaf beetles are normally coloured beetles that feed on ✓Natural Choice Conversion: 1 metre = 3’3” plant leaves. Their larvae infest plant roots and stems. Pest Control: A. 17g Insulating Fleece Early detection is Code Width Length Price SAVE GNE-066 1m 25m £7.00 Red Lily Beetle important for all varieties GDN-510 1m 50m £12.00 £2 Bright red beetles that have black heads and of leaf beetle and GNE-042 1m 100m £21.00 £7 combining fleece and fine are about 6-7mm long. In the spring reddish GNE-063 2m 10m £6.50 brown eggs appear on the underside of insect-mesh netting with GDN-031 2m 25m £12.00 £4.25 leaves, which develop into reddish brown this choice of natural GNE-043 2m 50m £21.00 £11.50 sprays will help to grubs, which often cover themselves in GNE-065 4m 10m £10.00 black excrement to ward off predators. The overcome these pests. GDN-034 4m 25m £20.00 £5 adults are active from March/April until the In the first instance we GNE-044 4m 50m £35.00 £15 autumn and are usually found on lilies and recommend the Insect 30g Insulating Fleece A. Insulating Fleece fritillaries. Most of the damage is done by Killer Spray but the fatty Code Width Length Price SAVE the Lily larvae, which strip plant foliage and acid, non toxic Savona Cover up nice and early by floating A GNE-067 1m 10m £6.00 then attack the flower buds. Damage spray is a great insulating fleece over the top of crops GDN-054 1m 50m £20.00 £10 GNE-045 1m 100m £35.00 £25 increases as the summer goes on. alternative if the beetles without damaging the young plants to build up a resistance to it. provide the ideal growing environment GNE-064 2m 10m £9.50 during the colder months. The permeable GDN-033 2m 25m £18.75 £5 Flea Beetle Insect Killer Spray white UV stabilised spun bonded 2mm GNE-046 2m 50m £32.50 £15 The damage from this pest, that is present square mesh cover protects against frost, GNE-068 3.2m 10m £12.00 A highly effective 1ltr ready to 2mm sq. mesh from April-May, is often seen before the wind, hail, birds and insects whilst helping GNE-047 3.2m 25m £26.00 £4 use spray that’s made from beetles. These small beetles are shiny black to warm up the soil so that earlier GNE-048 3.2m 50m £47.00 £13 nature’s own rapid acting in colour, sometimes with a yellow stripe on harvesting of healthy crops can be achieved. insecticide, pyrethrum, which B B. Fine Insect-Mesh their wing case. When disturbed the beetles Choose from either 17g or 30g thickness. can be sprayed directly onto Code Width Length Price SAVE can be seen jumping from the plants. They the plants. Use indoors or B & C. Insect-Mesh Netting GDN-018 2m 1m £2.80 attack vegetable plants including cabbage, outdoors on all fruit, GNE-036 2m 5m £12.00 £2 If your patch is prone to being invaded by radish, swede and turnip. Some beetles will vegetable or GNE-037 2m 10m £23.00 £5 pests both large and small, then lay this also attack flowering plants like wallflowers, ornamental plants GDN-017 2m 50m £110 £30 heavy duty 100% polyethylene UV stabilised stocks and aubrietias. Seedlings are (avoid open flower GDN-040 2.5m 1m £3.40 fine mesh directly over crops or hoops from 1.35mm sq. mesh especially vulnerable and damage appears as blooms) by spraying GNE-038 2.5m 5m £15.00 £2 late Spring onwards. It offers protection small holes in the leaves. both upper and GNE-039 2.5m 10m £29.00 £5 against carrot fly, cabbage root fly, GDN-425 2.5m 50m £135 £35 lower leaf surfaces caterpillars, birds, mild frosts, heavy rain, C when the larvae or GDN-043 3m 1m £3.85 Rosemary Leaf Beetle wind and hail whilst providing 20% shade. adults are present. GNE-040 3m 5m £17.25 £2 This is quite a recent pest to the UK with It also allows air and water to circulate so GNE-041 3m 10m £33.50 £5 Repeat treatment the adults and larvae feeding on the leaves that plants can grow healthily too. Two GDN-044 3m 50m £157.50 £35 may be required. and shoots of rosemary, lavender, sage and mesh sizes are available, the finest (C) will GPC-027 £5.95 C. Ultra Fine Insect-Mesh thyme. The adult beetles appear in late also keep out whitefly, flea beetle & aphids. Code Width Length Price SAVE spring and are metallic green with purple A great investment that should last 10 years! Control leaf 0.25mm x 0.8mm mesh GDN-056 2.5m 1m £4.80 stripes on their wing cases. They mate in GNE-029 2.5m 5m £21.00 £3 the summer, laying eggs that then develop beetles with GNE-030 2.5m 10m £40.00 £8 into larvae. The larvae can be identified by the fatty acid, Buy saver packs and SAVE £££s GNE-031 2.5m 50m £195 £45 their grey-white colour with dark stripes non-toxic and GNE-032 3m 1m £5.50 on their bodies and they have a safe Savona - or order multiple metres using GNE-033 3m 5m £24.50 £3 resemblance to slugs. see page 4. the 1 metre length price. GNE-034 3m 10m £47.00 £8 GNE-035 3m 50m £230 £45

12 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 13 Mealy Bugs Raspberry Beetle (Pseudococcidae) ✓children ✓pets ✓wildlife (Byturus tomentosus) ✓children ✓pets ✓wildlife

✓Natural Choice Pest Control: ✓Natural Choice Pest Control: Organic Savona Fatty Acid Concentrate Raspberry Beetle Trap For very severe infestations of mealy bugs or for Use this innovative funnel trap times when temperatures are below 18ºC, use the monitoring kit to detect the fatty acid based, non-toxic Savona in the first early warning signs of the instance on all edible and non-edible plants. Spray adult Raspberry beetle, by twice with a one week interval. The first spray will placing it 1m above ground, break down the fluffy mealy bug outer layer and the 4-6 weeks before first second will kill the mealy bug underneath. Savona flower during April to July. Pseudococcus viburnii extracting sap from plants leaves no harmful residues on the plant to adversely It helps to improve the affect future applications of beneficial insects (see timing and efficiency of below). The 1ltr concentrate dilutes to 50ltrs (to spray treatment (below), cover 500m2) that represents great value for money. thereby reducing crop You can buy our 1ltr empty spray bottle for diluting damage or any unnecessary into and for easy application. spray application. Attracted by the 1ltr Concentrate incorporated attractant lure and colour of the – dilutes to 50ltrs cross vanes (simulating a giant raspberry Raspberry beetle - both adults and larvae attack fruit GPC-141 £17.45 flower), the beetles fly into the cross vanes, fall 1ltr Empty Spray Bottle What to look out for… into the funnel shaped catchment area and GPC-142 £1.95 The Raspberry beetle – both larvae and down into the holding bucket below. If you Planococcus citri - attacks greenhouse plants discover 5-10 beetles per trap per week in the Mealy Bug Killer Mealy bugs adult - attacks all cane fruits and period from beetle emergence until onset of first Biological control of being devoured particularly summer fruiting What to look out for… flowering then use the Insect Killer Spray below. mealy bugs is possible Mealy bugs have their name due to the raspberries. The adult beetle (pictured) The attractant lure in the trap lasts 6 weeks, the with the ladybird; waxy and mealy covering which is a is brown and feeds on un-opened buds, length of a normal raspberry season, so top up Cryptolaemus fluffy material secreted from their bodies. unfolding leaves of first year canes and with a replacement to re-use it again. montrouzieri. On open flowers. Eggs are laid on flowers Trap GPC-126 £16.95 They are soft bodied and coloured grey to average 1-2 in the late spring and early summer and Replacement Lure GPC-127 £5.95 white, or pink and are about 4mm long. applications, with a 7-14 the resulting white coloured, 8mm long They occur mainly on greenhouse grown day interval, is required depending on the size of Insect Killer Spray plants all year round if temperatures are larvae feed on the developing fruit. The the mealy bug colony. The adult predator is Once raspberry beetles are caught or at first sign attacks often cause dried up patches at above 15ºC where they extract sap that active in temperatures of 23-25ºC but the larvae of presence, control measures can be the ends around the stalk and the larvae leads to stunted growth. Leaves can be will operate at lower temperatures, from about implemented. There are no commercially deformed or go yellow after their feeding. 17-18ºC. After clearing up mealy bugs this eventually moves into the centre of the available biological control Mealy bugs also excrete sticky honeydew predator will also feed on other pests such as fruit. The feeding can also introduce predators, so use this highly onto the plants and their general impact scale insects. For individually infested plants, try fungi, which damages the fruit further. effective 1ltr ready to use spray, can cause flowers and fruit to fall off in using the larvae of Cryptolaemus, when the Later in the summer, the larvae moves made from nature’s own rapid insects are wingless. Apply 4-5 larvae per cases of severe infestation. There are into the soil to overwinter as pupae. acting insecticide, pyrethrum. It will infested plant and place the larvae as close as several species that attack greenhouse also tackle flea beetle and red lily possible to the mealy bug mass. Also use the Postage and Packing is £2.00 if your beetle as well as larvae too. Apply plants including the citrus mealy bug larvae in winter months if using in heated areas, (Planococcus citri) whilst some species order ONLY contains products from this thoroughly indoors or outdoors on as the adults do not work well without sunlight. booklet (except netting, fleece & those on p.19). If all fruit, vegetable or ornamental cause further damage by injecting toxic Adults are particularly effective in cases of your order includes these exceptions or other items from leaf surfaces (both sides but avoid substances into the plant. Glasshouse widespread infestation. our website and main catalogue, then please note that open flower blooms). Repeat mealy bugs attack ornamental plants 25 adults GPC-525 £19.95 our standard charge is £4.95 unless your order includes treatments maybe required. including cacti, succulents, African 25 larvae GPC-124 £19.95 an item with a yellow lorry (£12.95) or red lorry (£19.95). GPC-027 £5.95 violets, ferns, orchids and vines. 10 larvae GPC-139 £10.95

14 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 15 FREE monthly pest control advice Spider Mite to your inbox. Just provide us with your email address for regular and (Tetranychus urticae) timely tips from our expert Julian Ives. ✓children ✓pets ✓wildlife

✓Natural Choice Pest Control: There are now two predatory mites that can be used as biological control of red spider mites - Amblyseius andersoni for early and preventative treatment and Phytoseiulus persimilis for curative control in warm conditions. Early observation of spider mites always contributes to gaining control of this pest quickly. The first spider mites coming out of hibernation are often red in colour and difficult for predators to Spider mite Spider mites feed on plant tissue and plant sap eat, so use the safe spray, Savona, on these killer sachets Phytoseiulus persimilis first and then follow up with the new low work in lower devours spider mite in temperatures warmer temperatures What to look out for… temperature predator contained in the Spider mites are a serious pest of many Spider Mite Killer sachets. There is a version for indoor use and a water proof plants, especially greenhouse grown Spider Mite Killer Sachets Spider Mite Control sachet for outdoor use. crops (cucumbers, peppers, etc.) and Early treatment of red spider mite using biological In warm conditions, especially in glasshouses, the soft fruit (strawberries, tomatoes, etc.). control is now possible at lower temperatures, most effective predator to choose is Phytoseiulus Organic Savona from 6ºC, with these Killer Sachets that contain persimilis which is contained in this biological The most common species is the two Fatty Acid Concentrate the predatory mite Amblyseius andersoni. These control. This predator eats spider mites in huge spotted mite; Tetranychus urticae. Sometimes spider mites are only observed predators are supplied in sachets, which are hung numbers but can only be introduced when There are also species that attack fruit after they have reached huge numbers on plants, and release hundreds of predators onto temperatures reach 20ºC+ on a regular basis and trees such as Panonychus ulmi. and at this point an introduction of the plant leaves for 2-4 weeks. There are two when spider mites are present on plants. They Spider mite damage is significant and predators may not be enough to control versions, one which is used outdoors and one devour all stages of the red spider mite lifecycle, can be fatal to plants. The mites feed on them. On these occasions or for early indoors. These predatory mites will feed on some moving rapidly over leaves and can consume up plant tissue and plant sap, mostly on treatment use this safe, corrective spray. It other pest mites and thrip larvae too. Simply to 20 immature spider mites and 5 adults per day. the underside of leaves, which then turn is a fatty acid base spray and can be used place one sachet per plant to ensure good The lifecycle of Phytoseiulus persimilis is also twice yellow. The whole plant can eventually to spot treat spider mite infestations coverage or distribute evenly among plants, as fast as that of the spider mite which allows die if left untreated. In high numbers before predators are introduced as making sure leaves are touching so that the them to out-compete. More than one application the mites produce webbing which biological control. It leaves no harmful predatory mites can move between plants. maybe required if spider mites are present in large provides a method for the mites to be residues to adversely affect subsequent 15 Outdoor Sachets GPC-143 £14.95 numbers, especially if there is already spider mite 25 Outdoor Sachets GPC-145 £22.95 webbing on the plant. Phytoseiulus persimilis likes transported in the wind or on clothing predator introductions and is safe to use 15 Indoor Sachets GPC-144 £9.95 warm humid conditions and spider mites like to other plants. Once webbing is on edible and non-edible plants. The solution will also control aphids, whiteflies 25 Indoor Sachets GPC-146 £14.95 warm and dry conditions, so try misting the plants observed there will be large numbers of and mealy bugs too. The 1ltr concentrate when using the predators. They are supplied in spider mites present. The two spotted dilutes to 50ltrs (to cover an area of 500m2) shaker bottles with some carrier material and this mite is normally green with two black that represents great value for money. You What’s eating should be sprinkled over infested plants. For light spots and only turns red when going can buy our 1ltr empty spray bottle for to heavy infestations of spider mites, aim to apply into hibernation or when it is emerging diluting into and for easy application. your plants? at least 30 predators per sq.m. out of hibernation. They are dormant 1ltr Concentrate 2000 Predator Bottle (covers approx. 67sq.m.) when overwintering and emerge when – dilutes to 50ltrs Don’t struggle and get GPC-540 £19.95 day lengths increase and temperatures GPC-141 £17.45 frustrated with pests, e-mail 500 Predator Bottle (covers approx. 17sq.m.) rise (March onwards). It is extremely 1ltr Empty GPC-535 £13.95 difficult to kill the mites in hibernation, Spray Bottle [email protected] 2 x 500 Predator Bottle 2 week period between each delivery. which they do in cracks, crevices and GPC-142 £1.95 for FREE expert advice. GPC-534 £25.90 – SAVE £2 roof structures.

16 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 17 FREE monthly pest control advice Slugs & Snails to your inbox. Just provide us with your email address for regular and timely tips from our expert Julian Ives. ✓children ✓pets ✓wildlife

✓Natural Choice Pest Control: Nemaslug Slug Killer, the biological pest control, and Advanced Slug Killer pellets are a great combination. Nemaslug works effectively Slug damage underground and the in a potato pellets gain control on the surface. Nemaslug Slug Killer Protecting the garden from slugs has never been easier Slug copper rings & bands Copper coated pot feet Slug & snail shocka rolls or more natural than using Copper Rings & Bands Copper Coated Slug Slug & Snail Shocka Rolls the nematode Phasmarhabditis hermaphrodita. Attractive copper rings or bands & Snail Pot Feet The unique copper coating of By mixing with water and applying with a form a reusable 2”high physical this reusable ground cover watering can when soil temperatures are 5°C+ Sit pots on these beautiful barrier and can easily be linked matting gives slugs and snails a (normally mid-March to November), you’ll be copper coated cast iron pot feet together to cover larger areas to for years of nibble-free plants! shock when they try to cross! Slugs - along with snails they’re still the number 1 pest adding living organisms to those that already send slugs and snails into a With these rolls you can protect exist in the soil to boost their number. These will At 4.5cm H x 2.5cm W x 6.5cm L retreat! The rings and bands work whole rows of plants by What to look out for… seek out and kill slugs (not snails) below the they’ll protect all pots from on exactly the same principle. The trimming it to the required size, Slugs and snails are still the number ground by entering their body and spreading frost and help drainage too! thicker rings are supplied in a pre- 3 Pack GPC-008 £12.95 and then cutting slits to plant one garden pests in the UK with our bacteria which stops them feeding before they formed perfect circular shape through. Then there is the perish out of sight. Each rain-proof application weather patterns ideally suiting their whereas the thinner bands are option to protect individual lasts 6 weeks, just the right time to let seedlings lifecycle. There are not many plants supplied in strips to provide the plants by cutting shapes to size and bedding plants establish! Slugs & snails that are not attacked by these pests and flexibility of forming your own too. Together with its water Small Pack 40 sq.m. coverage GPC-265 £9.95 they start feeding as soon as they shaped barrier. retention, insulation and weed *Small Pack Programmes - one postage charge only! can’t abide copper emerge from their eggs, leaving a slime mulch qualities, this fabric is a 2 Stage GPC-273 £19.90 Copper Rings trail before eating irregular holes in sound investment! 3 Stage GPC-271 £29.85 Small 10cm/4” Dia. 6 pack. - it shocks them leaves. Slugs will feed on plants above GPC-650 £17.95 0.3m x 4m roll GPC-147 £12.95 ground and below it and are a Large Pack 100 sq.m. coverage GPC-270 £19.95 Buy 2 Small 6 packs into a retreat! 0.9m x 5m roll GPC-148 £31.95 *Large Pack Programmes - one postage charge only! particular pest of potatoes GPC-295 £33.90 – SAVE £2 2 Stage GPC-274 £39.90 underground. Slugs and snails prefer Large 17.5cm/7” Dia. 6 pack. 3 Stage GPC-276 £59.85 GPC-655 £23.95 young shoots and roots but will feed on *2 & 3 stage treatment packs sent at 6 week intervals Slug and Snail most parts of a plant and can Buy 2 Large 6 packs Advanced Slug Killer GPC-651 £44.90 – SAVE £3 Copper Tape completely destroy them. The damage Put your pots, planters, staging Certified for organic use, these rain Mix Pack (3 Small & 3 Large) they cause can also make plants more or raised beds in the care of this fast bright blue iron based pellets GPC-660 £21.95 vulnerable to disease attack. Slugs and pretty and highly effective are safe around all plants, children Copper Bands snails are often more active at night sticky back copper tape. The and pets. They absorb water that Small 10cm/4” Dia. 5 pack. but will also feed in the day time. In protective serrated edges are attracts slugs and snails which feast GPC-777 £12.95 hard for slugs and snails to mild winters slugs can sometimes upon them and die. Both the pest Buy 2 Small 5 packs negotiate and they’ll soon back continue feeding whereas snails tend to and the pellets then degrade GPC-779 £23.90 – SAVE £2 off after a mini shock from the overwinter in large groups. Neither naturally into the soil for a real Large 17.5cm/7” Dia. 5 pack. copper’s natural charge. 4m roll. slugs nor snails need to mate to nutrient boost! 5g covers 1 sq.m. GPC-778 £15.95 GPC-186 £6.95 produce eggs and can lay up to 500 250g GPC-149 £3.45 Buy 2 Large 5 packs eggs on each occasion. 750g GPC-197 £6.95 GPC-776 £29.90 – SAVE £2

18 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 19 Scale Insects Vine Weevil (Soft and hard species) ✓children ✓pets ✓wildlife (Otiorhynchus sulcatus) ✓children ✓pets ✓wildlife

✓Natural Choice Pest Control: ✓Natural Choice Pest Control: There is a range of solutions for scale There is currently no control available insects; the old fashioned approach for adult vine weevils, so attention was to rub them off the plant with should be focused on vine weevil larvae mentholated spirit. This is rather time using the safest and most natural consuming so use these instead! method, nematodes. Vine Weevil Killer Soft Scale Killer Vine weevil larvae feed on roots & bore into tubers too For soft scale, tiny Apply these tiny microscopic Hard scale species inject toxic substances into plants parasites called What to look out for… worms, Steinernema Kraussei, Metaphycus helvolus can Vine weevils are a serious pest of by watering them into the be introduced indoors ornamentals and plants like strawberries, soil or compost where they to slow down and stop with both the adult and larval stages of are especially effective the spread of these the lifecycle causing plant damage. Adult when used in pots and containers. The nematodes move through the scale insects. These beetles with their long thin snout are growing media searching for the vine weevil minute parasitic wasps approximately 8-14mm in length, are dull Parasitic wasps larvae. They enter and kill them, using their inject their egg into the combat soft scale black and have tiny yellow bristles. scale, killing them and bodies to reproduce in and to release more Although they can’t fly they are highly producing another parasite. To be effective this nematodes into the surrounding area. The mobile and mostly nocturnal. They lay biological control requires longer days (March to nematodes should be applied once in the spring white eggs that quickly turn brown in the and once in late summer/early autumn when soil Soft scale species deposit honeydew on leaves October) and minimum temperatures of 18ºC. Application is easy, simply release the insects on compost or soil where they are deposited. temperatures are 5ºC+. The spring application What to look out for… or near the infected plants (3-5 per plant). For White larvae with reddish brown heads or kills off any overwintered larvae and the autumn Scale insects are often classified into two severe infestations repeat introductions 2-3 C-shaped grubs develop from these eggs application terminates any new vine weevil that groups; soft (with shell attached) and hard times over 3-4 weeks. that can overwinter and become active in has entered the garden during the summer. (without shell attached). They are often 25 adults GPC-167 £19.95 the early spring when soil temperatures Small Pack - treats up to 12 sq.m. GPC-275 £8.95 difficult to find as they tend to settle in rise. If the larvae are indoors, in pots or Hard Scale Killer Spring/Autumn - 2 x Small Packs concealed places or can be dispersed in low containers, they will continue feeding in Hard scale can be 1 delivered in April and another in September the winter. The damage caused by the numbers over the whole plant and are soft treated indoors with for annual protection. brown or grey in colour. On the plant they predatory beetles called larvae is potentially more serious to the GPC-137 £17.90 tend to remain on the underside of leaves Chilocorus nigritus. They plant than that from the adult beetle. The Large Pack - treats up to 100 sq.m. or gather on plant stems. Most outdoor are available as larvae or beetles make distinctive half moon cut GPC-280 £27.95 species are present in the summer months adults (use 3-5 of either shaped feeding marks on the edges of Spring/Autumn - 2 x Large Packs but indoor species can continue breeding per plant) and to be leaves whereas the larvae feed on plant 1 delivered in April and another in September effective they also roots and often bore into corms and for annual protection. all year round. In general they normally These beetles thrive require longer days GPC-138 £55.90 thrive in warm, humid and shady on hard scale tubers of plants. conditions. Most soft scales produce large (March to October) and The feeding from the larvae often leads to amounts of honeydew, a sticky substance minimum temperatures of 18ºC. Use the larvae plant death and those that for individual plant treatments and the adults for they leave on the leaf which moulds grow are under attack appear Postage and Packing is £2.00 if your multiple plant treatments. The adults are not on and attract ants. Hard scales don’t do de-hydrated and can order ONLY contains products from this effective in the winter as they need sun light to booklet (except netting, fleece & those on p.19). If this but instead they inject toxic substances collapse and die. be active. your order includes these exceptions or other items from into the plant when feeding, which turns 25 adults GPC-166 £19.95 our website and main catalogue, then please note that leaves yellow or brown around the feeding 25 larvae GPC-157 £19.95 our standard charge is £4.95 unless your order includes place. Heavy infestations of scale can result 10 larvae GPC-161 £10.95 Vine Weevil adult an item with a yellow lorry (£12.95) or red lorry (£19.95). in poor growth and leaf drop. beetle feed on leaves

20 I more pest control solutions at www.harrodhorticultural.com superior products to grow your own telephone orders 0845 402 5300 I 21 priority order form Whitefly Send to: Harrod Horticultural, Pinbush Road, Lowestoft, Suffolk NR33 7NL (Trialeurodes vaporariorum) ✓children ✓pets ✓wildlife YOUR ORDER By Phone 0845 402 5300 Online www.harrodhorticultural.com CODE DESCRIPTION SIZE £ UNIT PRICE QTY £ TOTAL ✓Natural Choice Pest Control: Sticky Pest Traps Adult whitefly can overwinter on host plants in greenhouses, so the first step to control them is to remove weeds or Total Goods any host plants you may have. Hang UK mainland Postage & Packing charges up 1-2 yellow sticky traps in the winter We only charge you for P&P once per order, no matter how many items Postage & Packing (Items ONLY from this booklet except netting, fleece & those on p.19) £ 2.00 you buy. P&P is £2.00 if your order ONLY contains products from and early spring to monitor and catch Postage & Packing (standard) £ this booklet (except netting, fleece & those on p.19). If your 4.95 any whitefly adults that are present. order includes these exceptions or other items from our website and £12.95 Postage & Packing if order includes an item with a yellow lorry £ 12.95 Whiteflies extract vast amounts of sap from plants Use the entire pack if trying to main catalogue, then please note that our standard charge is £4.95 Postage & Packing if order includes an item with a red lorry £ 19.95 contribute to control. 10cm x 25cm H. unless your order includes an item with a yellow lorry (£12.95) or £19.95 10 Pack GPC-159 £4.95 red lorry (£19.95). For P&P charges to some parts of Scotland and TOTAL AMOUNT £ outside the UK mainland, please telephone for a quote. Whitefly Control Once temperatures are over 18ºC introduce NAME & ADDRESS (Please complete in BLOCK capitals) OFFER CODE: 10PEST1 parasitic wasps called Encarsia formosa that have Name (Mr/Mrs/Ms/Miss) Please state if you have a specific been used with great success to control whitefly place where parcels under £50 value populations indoors since 1926. They are Address can be left (6 words max.) Please note that orders exceeding £50 can only be Postcode introduced as eggs on cards before hatching left with a letter or email sent to us into adults. Regular introductions will keep Customer No. (If you have one) Daytime Tel. (In case of query) giving your permission. We can email you when your order has been despatched. Whiteflies can be found on the underside of leaves whitefly under control naturally and by keeping Email Please tick box if you do not wish to receive email offers. the greenhouse at 18ºC in the daytime and 10ºC What to look out for… at night you will encourage the best results. METHOD OF PAYMENT 1500 Encarsia formosa GPC-510 £11.95 Whiteflies, both adults and eggs, are I enclose a cheque/postal order for £ payable to Harrod UK Limited. found on the underside of leaves, 1500 Encarsia formosa x 3 From time to time Harrod Horticultural will Or please charge my mail you with special offers and new although the 1.25mm-2mm adults 1500 Encarsia formosa delivered weekly for 3 weeks. Maestro/Solo Issue No./Start Date Expiry Date products. If you do not wish to receive these, please tick box. Security Number GPC-515 £35.85 SOLO MMY Y MMY Y normally congregate at the top of the last 3 digits on plant and fly off when disturbed. The Card Number signature strip We occasionally make names available to other companies whose products we most destructive form of whitefly for think may be of interest to Harrod Horticultural customers. If you do not gardeners is the glasshouse whitefly wish to receive any other offers apart which attacks a variety of greenhouse from our own please tick box. Card Holders Name Card Holders Signature grown plants whereas outdoors the Company Registered Number: 875029 cabbage whitefly attacks brassica plants. Whiteflies are sap feeding This unique mix of insects and extract vast amounts of sap Grow Your Own Pest Control nematodes is capable of controlling all these from plants from about May (much Parasitic wasps, Encarsia Whitefly after being Now you can control all key insect pests on vegetables pests throughout the earlier in heated greenhouses where formosa, are tried and in contact with and fruit throughout the growing seasons by applying growing seasons! tested to control whitefly parasitic wasps they can overwinter). Plant growth this general solution. After planting out, just apply 1 ✓ carrot root fly becomes stunted and sticky honeydew pack every fortnight (when soil temperatures are 12ºC+) ✓ cabbage root fly is left on plants. This often grows black until harvest to ensure you hit the pests listed opposite ✓ leatherjackets sooty moulds and a yellow mottling Control whitefly with whenever they might occur as they all have different ✓ cutworm timings. It certainly saves the difficulty of identifying specific problems and then further indicates where whitefly have ✓ onion fly the fatty acid, non- buying individual solutions making it a cost effect way of staying on top of fed. Whitefly is also capable of toxic and safe Savona ✓ ants numerous pests for strong and healthy harvests! 1 pack provides 2 weeks ✓ sciarids transmitting plant viruses and infested - see page 16. protection and covers 60sq.m. or 16 trees in the case of codling moths. For plants suffer from a lack of vigour. ✓ caterpillars smaller areas apply the whole pack at once, overdosing is not a problem. ✓ gooseberry saw fly 1 Pack GPC-029 £4.95 ✓ thrips 22 I more pest control solutions at www.harrodhorticultural.com 2 Packs GPC-030 £9.90 (HINT – saves re-ordering & reduces postage!) ✓ codling moth ✃ OFFER CODE: 10PEST1 What’s eating your plants? Julian Ives, Harrod Horticultural’s Pest Control Expert answers your questions...

Red Spider Julian replies: Ladybirds over Mite & A winter as adults, so I suggest Peaches you delay purchasing ladybird Red spider larvae until next spring. Putting in Q mite has had a ladybird box or habitat now is a a field day this good idea, as it will encourage year in our adult ladybirds to over winter in it. unheated greenhouse, starting during Adults emerge from hibernation in the hot weather of the early summer. It the spring and start feeding on affected the peaches badly, and has aphids. Ladybird larvae are best now turned its attention to the apricots. purchased from May onwards, when Insect Management Have I left it too late? What course of you see aphids in the garden. I’ve a dilemma with the netting on action do you recommend? Q my fruit cage. The holes are too Chris Proudfoot, 19th September Chafer Grub Alert! large to stop the cabbage whites but Julian replies: It’s certainly not We have a grub in our will stop pigeons (my other problem). Is A too late if the red spider mite Q lawn, quite a large there any way of solving both problems has not turned red. It sounds odd area, about 170 square with one mesh size but still allow but they only go this colour when metres. I notice that your beneficial insects in? Help please! they are about to go into treatment can only be Alison Millward, 6th September hibernation which is when predators applied between August and Julian replies: You could put our are less effective on them. You can September. This would mean that all A butterfly netting over brassicas treat with a fatty acid based spray through winter/spring and most of next in the fruit cage as a 2nd barrier. If called Savona but make sure you summer the garden would look a mess. you do this, make sure that the get a good coverage, especially Is there anything we can do sooner? plants do not touch the netting, as under the leaves. We also have a Kim Brown, 20th October the cabbage whites can still lay eggs new predator available in sachets Julian replies: Unfortunately through the netting if it is touching that works in cooler temperatures A you’re right, our treatment with the plants. Another option is the use so that’s well worth using. nematodes is for the late summer of nematodes. You can now spray as soil temperatures are too low for caterpillar killer nematodes onto Ladybird Larvae the spring. However, there is a new the caterpillars. These are safe to I’m interested in Chafer Beetle Trap which can be use on edible plants. As soon as you Q ladybird larvae but placed out in May ready for the see any caterpillars, spray the how long would it be adult beetles. This is not a control nematodes directly onto them which before they become but will reduce numbers if you have will penetrate the caterpillars and dormant and would they stay the Garden Chafer species of kill them. This is a safe, chemical active through the winter if I put a Chafer beetle. free method of controlling them. ladybird house in a warm greenhouse? Merv Wignall, 21st September

Don’t struggle and get frustrated with pests in your veggie patch, just ask Julian for advice. Email [email protected] or write to Julian Ives, Harrod Horticultural, Pinbush Road, Lowestoft, Suffolk, NR33 7NL.