DrDr N.B.V.ChalapathiN.B.V.Chalapathi RaoRao Senior Scientist (Entomology) Horticultural Research Station DR YSR HU, Ambajipeta - 533 214 Major Pests of Coconut
Common Name Scientific Name
Coconut Black Headed caterpillar Opisina arenosella
Rhinoceros beetle Oryctes rhinoceros
Red Palm weevil Rhynchophorus ferrugineus
Slug caterpillar Macroplectra nararia
Eriophyid Mite Aceria guerreronis
CoconutCoconut blackblack headedheaded caterpillarcaterpillar ((OpisinaOpisina arenosellaarenosella Walker)Walker)
‹ Severe in coastal, back water tracts and coconut fish pond eco- systems. ‹ Infests palms of all ages. ‹ Alternate Hosts – Palmaryah, Talipot palm, wild date and ornamental Palms
‹ Infestation starts from outer whorls ‹ Larva feeds on the chlorophyll being in the galleries between leaf folds ‹ Dried up patches on the upper epidermis Alternate Host – Palmaryah CBHC on Palmyrah CBHC on wild Date palm Life stages of Coconut Black Headed Caterpillar
Eggs Larva
Pupa Adult Severe Infestation of coconut black headed caterpillar- Gachakayalapora village November 2012 Severe Infestation of coconut black headed caterpillar- Goganamatam village CBHC incidence on fish pond bunds – S.Yanam Incidence of Black headed caterpillar on nuts List of parasitoids
Stage of the Host Scientific Name Larva Bracon hebetor Say
Larva Goniozus nephantidis Mues Brachymeria nosatoi Habu / Pupa Brachymeria spp.
‹ Brachymeria nosatoi Habu, a host specific pupal parasitoid brought from West Coast and introduced in East Coast successfully. Parasitisation of O.arenosella by G.nephantidis parasitoidrecovery
Goniozus nephantidis exiguus exiguus
nigrolineata nigrolineata
Spiders Spiders
Parena Parena Cardiastethus Cardiastethus List of of List predators Recovery of the gardens affected by black headed caterpillar RhinocerosRhinoceros BeetleBeetle (( OryctesOryctes rhinocerosrhinoceros Linn)Linn)
‹ Palms aged 3 – 10 years are more prone to attack ‹ Affected frond when fully opened shows geometric cuts
‹Round to oblong holes on unopened spathes and spindle leaves. ‹Repeated infestation to the growing point may lead to death of the seedlings. ‹Injured portion may attract red palm weevil and fungal infection. Petiole Leaf Rhinoceros beetle infesting coconut palm RHINOCEROS BEETLE ORYCTES RHINOCEROS
Rhinoceros beetle damage Damage symptoms Red palm weevil in rhinoceros damaged palm Rhinoceros damage through soil Life stages of Rhinoceros beetle
Larva
Eggs Pupa
Adult IPM of Rhinoceros beetle d Sanitation d Mechanical hooking of beetle and leaf axil filling (NSKP 100g + 150 sand) d Release of baculovirus inoculated beetles @ 10 – 15 / ha. d Treatment of breeding sites with Metarhizium anisopliae @ 1 litre / 1 mt 3 ( 5 x 10 11 Spores / mt 3)
d Establishment of rhinolure traps @ 1 trap / 2 ha. ∑ Studies on pheromone lures - Aggregation pheromone - rhinolure (Ethyl - 4 methyl octanoate) NPM CPCRI rhinolure Rhinoceros beetle collection from coconut logs at Ambajipeta
Rhinoceros beetle collection from vermicompost pits Grubs of rhinoceros beetles in manure heaps RedRed palmpalm weevilweevil (( RhynchophorusRhynchophorus ferrugineusferrugineus OlivOliv))
d Infested palm shows yellowing and later wilting of leaves
d Pencil size circular holes on the trunk and oozing of brownish viscous fluid.
d Presence of chewed up fibrous material in the leaf axils
Red palm weevil infested palm Toppling of the crown or falling of the palm LifeLife stagesstages ofof redred palmpalm weevilweevil
Pupa Larva
Adult Red palm weevil, Rhynchophorus ferrugineus
Crown damage by Trunk damage by red palm weevil red palm weevil
Red palm weevil life stages from an affected crown Rhinoceros beetle grubs Red palm weevil life stages Red Palm Weevil Infestation Grub & pupal stages of red palm weevil RED PALM WEEVIL ADULT IPMIPM ofof redred palmpalm weevilweevil d Remove and destroy pest affected dead palms d Avoid injuries to the trunk. d Timely treatment of palms affected by rhinoceros beetle or bud r ot or lightening. d Chisel out affected trunk region and burn it. d Smear the wounded portion with coaltar . d After cleaning, fill the tunneled portion of trunk with cement and sand mixture to give strength to the palm. d Root feeding of Monocrotophos 36% SL 10 ml +10 ml water d Arrange pheromone traps and monitor the traps regularly.
Root feeding technique EriophyidEriophyid mitemite (( AceriaAceria guerreronisguerreronis KeiferKeifer ))
1st report : 1960 Guerrero state of Mexico
A cause of concern in many Asian and Pacific countries.
KERALA INDIAINDIA 1998 TAMILNADU, KARNATAKA
1999 ANDHRA PRADESH Cream coloured, worm like with two pairs of anterior legs
SEM of coconut Eriophyid mite (Aceria guerreronis K.) SEM of coconut Eriophyid mite (Aceria guerreronis K.) IPM and INM Package
‹ Adoption of phytosanitary measures. ‹ Root feeding of Azadirachtin 1% three times in a year ‹ Application of RDF i.e, 1.0 kg Urea, 2 kg single super phosphate and 3½ kg muriate of potash / palm / year. ‹ Raising of green manure crops in the coconut basins (like sunnhemp, cowpea, Calapagonium). ‹ Recycling of biomass generated within the coconut system by vermicompost method. ‹ Recommended level of irrigation during the summer months. ‹ Soil moisture conservation- Mulching the basins (2m radius) with coconut leaves Management of eriophyid mite in coconut gardens
Neem Cake Fertilizers
Green manure
Irrigation Root feeding of Azadirachtin d Growing of intercrops like banana, yam, cocoa and turmeric or vegetables NaturalNatural EnemiesEnemies ofof MiteMite
Predatory mites: Fungal Pathogens: c Bdella indica c Hirsutella thompsonii c Amblysieus largoensis (Acereogenous fungus) c Neoseiulus mumai c Hirsutella nodulosa c Neoseilus paspalivorus c Verticelium lecani c Phytoseiids c Fusarium sp. c Tarsonemid – Supotassonemus sp. c Pencillium sp. c Aspergillus sp.
Bacteria: c Pseudomonas c Actinomycetes H. thompsonii in PDA medium H. thompsonii emerging from dead mite
Talc formulation 20 g / litre / palm containing 1.6 x 10 6 cfu with a frequency of three- sprayings per year Healthy Bunch Life stages of slug caterpillar
larvae eggs
Pupa Adult
200 w Light trap Pupae of slug caterpillar in the crown Sticky trap at 1.5 feet Window B.T at 10 feet
Water pan at 1.5 feet Window B.T at 4 feet 200 w Light trap
U.V. light trap (Acrylic) U.V. light trap (Metallic) Co existence of Palmyrah palms with Coconut palms in the field bunds/gardens Pupal stages on Palmyrah Adult moth on Palmyrah
Macroplectra nararia Slug damage on Palmyrah palm Removal of infested Palmyrah leaves Fresh incidence of Slug caterpillar along with Coconut black headed caterpillar Slug caterpillar on cocoa and banana [intercrops in coconut] Incidence of Slug caterpillar in West Godavari district, Andhra Pradesh
Slug incidence on coconut palms on paddy field bunds in Veeravasaram village
Slug incidence on coconut palms on fish pond bunds in Nela pogula village Severe incidence of coconut slug caterpillar was recorded in Podouru, Veeravasaram. Penumantra and Palakoderu mandals of West Godavari Paecilomyces lilacinus (Thom) Samson fungus infected slug caterpillars Chirutapudi village December 2012 Acknowledgements NFCCI, Agharkar Research Institute, Pune sp sp e January 2013 January Euplectrus Euplectromorpha Goganamatam village
Acknowledgements : IARI, New Delhi; NBAII, Bangalor NBAII, Delhi; New IARI, : Acknowledgements Larval parasitoids on slug caterpillar identified caterpillar slug on parasitoids Larval Pupal parasitoid Eurytoma monemae
Pupal parasitoid Praestochrysissp observed Ceranisus menes sp
Ceranisus menes Parasitisation by ofcoconutslug caterpillar in March - inMarch April2015 ‹ family Eulophidae to belonging ) Hymenoptera was ( Parasitisation of coconut slug caterpillar by Ceranisus menes and its culture collected in the laboratory Coconut leaf eating caterpillar Phalacra sp Coconut leaf eating caterpillar Phalacra sp life stages
Eggs Early instar larvae Grown up larvae
Pupae Adult Moth Coconut trees defoliated by Phalacra sp Life stage of new leaf eating caterpillar
Damage symptoms on coconut Symptoms on Banana [intercrop] Oil Palm Web worm Acria sp life stages
eggs larva Pupa
Adult Moth leaf eating caterpillar Acria sp Rat damage
Damage to tender nuts by monkeys Visakhapatnam district Bat Damage
Termite incidence
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Horticultural Research Station, DR YSR HU , Ambajipeta – 533 214