DOCSLIB.ORG

Stored Product Pests

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Stored Product Pests L-2046 2-02 Pantry and Fabric Pests in the Home Michael Merchant and Grady J. Glenn* often found on crape myrtles and other orna- ood and fabric pests can be found in nearly mental shrubs and flowers. Should they come every home. They are usually no more than indoors, carpet beetles or clothes moths may lay an occasional inconvenience. If an infesta- their eggs on woolen carpets or stored fabric Ftion develops in your home, the information in items. this publication should help you control it. Some insects feed primarily on plant materials Pests of seeds, grains and and are usually found in stored foods in kitchens and pantries. Other insects feed primarily on spices products containing animal proteins, such as The Indian meal moth is a common and dis- woolen fabrics, leather and hides, hair, feathers, tinctive pantry pest. It is the most common pest powdered milk and some pet foods. Animal of dried fruit, nuts, cereals and oilseeds. It also product pests are more likely to be found in infests powdered milk, chocolate and other can- closets and areas other than kitchens. Either kind dies, bird seed and dog food. The adult Indian of pest can be found almost anywhere in a home, meal moth has wings that are whitish-gray at the however. If you find the same kind of insect base and deep pink or copper colored on the repeatedly in a kitchen or closet it is good evi- outer two-thirds. The wingspan is about 3/4-inch. dence of a pest problem. The caterpillars, or immature stage of the Indian meal moth, are often noticed crawling up walls How did they get in my and spinning cocoons on textured walls or ceil- ings. Inside the cocoons they pupate and become house? adults. Food pests are usually brought home from the grocery or pet store. Food can become infested while in the farm or garden, or during storage or transport. While food manufacturers and grocery stores control most food pests with strict sanita- tion and the judicious use of pesticides, it is pos- sible for a few insects to make their way into your home. Insects that feed on animal products also may come into your home from the grocery store, but are more likely to enter from outdoors. Clothes moths and carpet beetles occur outdoors in bee, bird and rodent nests. Carpet beetle adults are 10mm Actual size *Extension Urban Entomologist; and Research Associate, Center for Urban and Structural Entomology; The Texas Figure 1. The Indian meal moth is the most common indoor moth pest. A&M University System. Adults are easily identified by their bi-colored wings. (Photo courtesy USDA) Another pantry moth is the Angoumois grain Flour beetles are also com- moth (AHN goom wah), which commonly mon and destructive pests. Adult infests popcorn, Indian corn decorations, and flour beetles are elongated, red- seeds in dried flower arrangements. dish brown, and 1/8 to 3/16 inch Cigarette beetles long. They feed on cereals, and drugstore beetles grains, beans, nuts, dried fruits, are the most common spices, milk chocolate, dried pests of home pantries milk and, occasionally, hides. in Texas. The larvae of They tend not to feed on whole these beetles feed on grains or intact seeds, but favor flour and other milled grain all kinds of plant mate- 4mm rial including tobacco, 3mm products. Food products infested Actual size seeds, grain, nuts, Actual size with flour beetles have a foul Figure 5. The red odor and taste. flour beetle feeds on beans, spices, cotton- Figure 2. Drugstore and cigarette pro-cessed grains, seed meal, dried fruits beetles (a and b, respectively) are nuts, fruits and and vegetables, flour, similar in appearance. Their small meat-based prod- size, rounded profile and concealed Pest of woolens, potpourri and dried ucts. Its flat shape head are characteristic. (R. White, enables it to hide in flower arrangements. USDA) hides and feathers narrow cracks and They are strong fliers Beetles in the genus Dermestes enter narrow open- and may be attracted to lights and windows. ings in food packag- are collectively known as car- Adults do not feed, but lay their eggs on food ing. (A.D. Cushman, pet, hide and larder beetles. sources. USDA). Most feed on animal proteins, Merchant beetles and saw- though some will also feed on toothed grain beetles infest high-protein plant materials. In cereal and flour products, maca- the pantry, they may be found roni and dried fruits. Adults are in powdered milk, dried meats, about 1/8 inch long, brown, or pet foods that contain fish elongated and flattened in meal or other animal byprod- shape. With a magnifying glass, ucts. they can be distinguished from Hide beetles are a serious 3mm other grain beetles by their six problem in museums. They Actual size saw-like teeth on the margins of attack leather goods, trophy Figure 6. Carpet bee- the segment behind the head. heads, hides, skins, and dried tles feed on woolen Adults of these beetles do not 2.5mm sweaters, rugs, feath- fish. In the home they also feed fly, but their flattened bodies Actual size ers and furs. Adult on pet food, bacon, cheese and make it easy for them to enter Figure 3. The saw- carpet beetles are toothed grain beetle feathers. common outdoors food packages. and can enter homes is a common pest in Household infestations often Rice weevils and granary grain-based processed through doors, win- can be traced to bird or rodent dows or attics. weevils are pests of whole foods. It can be iden- tified, with the aid of carcasses in attics, old bee nests, grain or processed grain foods a magnifying lens, by or accumulations of dead insects such as macaroni. These wee- the saw-like teeth on in windows or light fixtures. When fully grown, vils are cylindrical, about 1/6 the edge of the shield these larvae sometimes bore into wood or other inch long, and have prominent behind the head. (A. D. Cushman, USDA) hard substances to pupate, leaving 1/8-inch-wide snouts. Larvae are pale, c- holes. shaped and legless. Adults of both species are reddish- Adult hide beetles are relatively large, 1/4 to brown to black, but the rice 3/8 inch long. They are dark brown to black, weevil may have four pale with various markings. The larvae are cigar- red or yellow markings on shaped and covered with fine hairs that give the wing covers. These bee- them a fuzzy appearance. Hide and larder bee- tles rarely penetrate tles in the genus Dermestes can be recognized by a pair of large, curved “horns” on the last body 4mm unopened food packages. Actual size Rice weevil adults can fly segment. Figure 4. Weevils have and are attracted to lights. Beetles of the genus Anthrenus and the genus prominent snouts and are Granary weevils do not fly, Attagenus are smaller than Dermestes beetles and usually found in whole but enter homes in infested grains. (Photo courtesy are colorfully marked. Anthrenus and Attagenus USDA) food. beetles are 1/8 to 3/16 inch long and round or oval. Larvae are light tan to Distinguishing between clothes moths brownish and about the size and pantry-infesting moths and shape of small rice ker- nels. Larvae are ringed with Clothes moths and pantry moths can be dis- circular tufts of hairs, giving tinguished by their appearance and behavior. them a banded appearance. I Clothes moths are smaller than pantry Like hide beetles, infesta- moths, have narrower wings, and are more tions of carpet beetles may secretive. start in bird nests or accu- I Clothes moths avoid light and are weak mulations of dead insects in fliers, preferring to run when disturbed. light fixtures. Once estab- I Cloths moths have unmarked wings with lished inside a home these 3 beetles can cause consider- a span of about /8 inch (10 to 14 mm), and able damage to woolen arti- shiny gold scales on their bodies. With a cles, furs, feathers, hair magnifying glass you can see that the head brushes and other valuable has a fluffy pompadour of reddish-gold possessions. hairs. Warehouse beetles, of the I Clothes moths are not commonly seen genus Trogoderma, look because they are active mostly at night. 5mm The larvae rarely leave their food source. Actual size much like black carpet bee- Figure 7. Immature carpet tles but have light brownish I Pantry moths, such as the Indian meal beetles are cigar-shaped bands on the wing covers. moth, are larger, with wingspans of 1/2 with a banded appearance. They may be found feeding They feed on both animal inch or more. They may be seen actively on dead insects in lights, and plant products. Both flying during the day. They are usually on window ledges, or in Trogoderma and Anthrenus found near stored food and are more closets (C. Feller, USDA). beetle larvae have barbed likely to be seen crawling up walls and hairs on their bodies that on ceilings. can irritate the digestive tract if the beetles are accidentally ingested. Clothes moths feed on silk, wool, fur, feath- ers and hair. Rugs and clothing that contain these substances can be seriously damaged. They also Controlling pantry pests feed on powdered milk and products containing Non-chemical control. The first step in con- meat or fish meal, such as pet food. Synthetic or trolling pantry pests is to locate and eliminate cotton fabrics are attacked only if they are soiled, infested foods. Removing an infested package of or interwoven with natural animal fiber materi- flour, macaroni or cake mix is often all that is als.
Load more

Recommended publications
  • Life History of the Angoumois Grain Moth in Maryland
    2 5 2 8 2 5 :~ Illp·8 11111 . 11111 11111 1.0 1.0 i~ . 3 2 Bkl: 1111/,32 2.2 .,lA 11111 . .2 I" 36 I" .z 11111 .: ~F6 I:' ­ I'· "' I~ :: ~m~ I­.: ,~ ~ l..;L,:,1.O. '- " 1.1 1.1 La.. ,­ -- -- 11111 1.8 111111.25 /////1.4 111111.6 111111.25 1111/1.4 ~ 11111~·6 MICROCOPY RESOLUTION TEST CHART MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANOAROS-1963·A NATIONAL BUREAU Dr STAN£1AHOS·1963 A :1<f:~ . TEcliNICALBuLLETIN~~==~~.="=' No. 351 _ '='~.\III~.J.~=~.~=======_ APIUL, 1933 UNITED STATES DEPARTMENT OF AGRICULTURE WASHINGTON. D. C. 'LIFE HISTORY. OF THE ANGOUMOI8. .. ~ GRAIN MOTH IN MARYLAND . • ~J:J By PEREZ SIMM;ONS, Entomologist; and G. W. ~LLINGTON,t Assi8tant Entomologist, . DiVision of StoTed Product In.~ecw, Bureau of Entomology 2 CONTENTS Page Page , :.. Introduction________________________________ 1 Lif",his.tor~OVIp05.lt""l <;letails-Contint:ed.______ ._______________________ ·16 " ~ The AngoumoL. grain moth in wheat and ."'~ ~ corn~ ___ ..... ___ ... ___ .. ________________________ 2 Incubatioll period______________________ 19 Larval period___________________ _________ 20 ::<l ."': Annual cycle of the moth on :Maryland 2 "" _ farms ____________ ,____________________ Pupal period____________________________ 24 f_.~ Ef,Tects of some farm practices on moth Development from hotching to emer· :Ji :',f Increasc._______________________________ 3 gencc_________________________________ 25 Overwintering of the insP.Ct..____________ 3 Effectstemperatl on development Ires ________________________ oC high and low "'_ 28 Spring dispcr.;al to growing wh~aL______ 5 ;.; Thewheat Angoumois________________________________ grain moth in seed _ Comparative rate oC development oC thfi Ii sexes _________________________________.:. 30 <': Dispersal to cornfields ________ ._________ _ 12 Parasit.es____________________________________ 31 ~ - Life-history details ________________________ _ Outbreaks, past and Cuture__________________ 31 Behavior of the adults ________ .
    [Show full text]
  • BIOLOGY of the ANGOUMOIS GRAIN MOTH, SITOTROGA CEREALELLA (Oliver) on STORED RICE GRAIN in LABORATORY CONDITION
    J. Asiat. Soc. Bangladesh, Sci. 39(1): 61-67, June 2013 BIOLOGY OF THE ANGOUMOIS GRAIN MOTH, SITOTROGA CEREALELLA (Oliver) ON STORED RICE GRAIN IN LABORATORY CONDITION T. AKTER, M. JAHAN1 AND M.S. I. BHUIYAN Department of Entomology, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh 1Department of Entomology, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh Abstract The experiment was conducted in the laboratory of the Department of Entomology, Sher- e-Bangla Agricultural University, Dhaka during the period from May 2009 to April 2010 to study the biology of the Angoumois grain moth, Sitotroga cerealella (Oliver) in Bangladesh. The ovipositional period, incubation period, larval period, pre-pupal period and pupal period of Angoumois grain moth were 3.67 days, 5.5 days, 25.2 days, 3.0 days and 5.0 days, respectively; male and female longevity of moth were 8.0 and10 days, respectively. The lengths of all five larval instars were 1.0 ± 0.00, 2.0 ± 0.02, 4.0 ± 0.06, 5.0 ± 0.03 and 4.0 ± 0.06 mm, and the widths were 0.10 ± 0.0, 0.4 ± 0.0, 0.6 ± 0.01, 0.8 ± 0.02 and 1.0 ± 0.09 mm, respectively. The length and width of the pre-pupa and the pupa were 4.0 ± 0.02, 3.5 ± 0.01 mm and 1.20 ± 0.05, 1.50 ± 0.03 mm respectively. The length of male and female was 11.2 ± 0.09 and 12.07 ± 0.06 mm respectively. Key words: Biology, Angoumois grain moth, Sitotroga cerealella, Stored rice grain Introduction Angoumois grain moth, Sitotroga cerealella (Oliver) (Lepidoptera: Gelechiidae) is a primary colonizer of stored grain in subtropical and warm temperate regions of the world.
    [Show full text]
  • Insect Pests of Stored Grain Blog
    Insect Pests of Stored Grain Insect Pest Population Potential • Insects are 1/16 to ½ inch depending on the species. • Large numbers insects in small amounts of debris. • 500 female insects • each female produces 200 offspring • 10 million insects in two generations. Adapted from the Penn State University Agronomy Guide Store Grain Insects Economic Damage • Lose up to 10% of the grain weight in a full storage bin • grain bin containing 30,000 bushels of corn valued at $3.00 per bushel would lose $9,000 • The loss does not include dockage or the cost of eliminating the insects from the grain. Adapted from the Penn State University Agronomy Guide Sampling for Bugs Looking for Bugs Docking screens can be used to separate beetles from the grain. Primary Stored Grain Feeders in NYS Weevils • Granary Weevil • Rice Weevil • Maize Weevil Beetles • Lesser Grain Borer Moths • Angoumois grain moth Weevils Have Snouts! Snout No Snout Gary Alpert, Harvard University, Bugwood.org Gary Alpert, Harvard University, Bugwood.org Maize Weevil Lesser Grain Borer Granary weevil Sitophilus granarius (L.) • polished, blackish or brown. • 3/16 of an inch long • no wings • Not in the field • longitudinal punctures- thorax • 80-300 eggs laid • One egg per grain kernel • corn, oats, barley, rye, and wheat Clemson University - USDA Cooperative Extension Slide Series , Bugwood.org Rice Weevil (Sitophilus oryzae) • 3/32 of an inch. • reddish brown to black • Small round pits-thorax • Has wings with yellow markings • Lays 80-500 eggs inside of grain • One egg per grain kernel • Start in the field • wheat, corn, oats, rye, Joseph Berger, Bugwood.org barley, sorghum, buckwheat, dried beans Maize Weevil Sitophilus zeamais • Very similar to rice weevil • slightly larger • 1/8 of an inch long • Small round pits on thorax with a mid line.
    [Show full text]
  • Clothes Moths ENTFACT-609 by Michael F
    Clothes Moths ENTFACT-609 By Michael F. Potter, Extension Entomologist, University of Kentucky Clothes moths are pests that can destroy fabric and other materials. They feed exclusively on animal fibers, especially wool, fur, silk, feathers, felt, and leather. These materials contain keratin, a fibrous protein that the worm-like larvae of the clothes moth can digest. (In nature, the larvae feed on the nesting materials or carcasses of birds and mam- mals.) Cotton and synthetic fabrics such as poly- ester and rayon are rarely attacked unless blended with wool, or heavily soiled with food stains or body oils. Serious infestations of clothes moths Fig. 1b: Indianmeal moth can develop undetected in dwellings, causing ir- Two different types of clothes moths are common reparable harm to vulnerable materials. in North America — the webbing clothes moth Facts about Clothes Moths (Tineola bisselliella) and the casemaking clothes moth (Tinea pellionella). Adult webbing clothes Clothes moths are small, 1/2-inch moths that are moths are a uniform, buff-color, with a small tuft beige or buff-colored. They have narrow wings of reddish hairs on top of the head. Casemaking that are fringed with small hairs. They are often clothes moths are similar in appearance, but have mistaken for grain moths infesting stored food dark specks on the wings. Clothes moth adults do items in kitchens and pantries. Unlike some other not feed so they cause no injury to fabrics. How- types of moths, clothes moths are seldom seen be- ever, the adults lay about 40-50 pinhead-sized cause they avoid light.
    [Show full text]
  • Clothes Moths
    Clothes Moths Integrated Pest Management in the Home The webbing clothes moth, Tineola bisselliella, (Figure 1) and casemaking clothes moth, Tinea pellionella, (Figure 2) can be fabric pests in California. They tend to hide when disturbed, so you might not notice you have an infestation until after the moths have already dam- aged your fabric, fur, or feathered items. Close examination of the objects will reveal silken webs the larvae have spun. Figure 1. Webbing clothes moth. Figure 3. Casemaking clothes moth with IDENTIFICATION its case attached. The webbing clothes moth is the most common fabric moth. The adult is gold with reddish-golden hairs on the top of its head. A row of golden hairs fringes its wings, which have a span of about 1/2 inch. Because these moths are weak flyers that aren’t attracted to lights, you’ll usually find them close to the infested items, such as in a dark area of the closet. Figure 2. Casemaking clothes moth. The Don’t confuse the clothes moth with dark spots on the wings distinguish it common food- and grain-infesting from the webbing clothes moth. Figure 4. Cases from the casemaking moths, which frequently fly around clothes moth. Cases take on the color of the house. At rest, clothes moths are the fabric being consumed. only about 1/4 inch long, while most head are lighter colored than those of food-infesting moths are about double the web bing clothes moth. that length. Clothes moths usually fly around only the immediate area of Larvae of both spe cies are nearly identi- the house where the infestation has cal, except the larvae of the casemaking occurred, and their flight pattern is clothes moth always carry a silken case dis tinctive—they tend to flutter about with them as they feed (Figure 3).
    [Show full text]
  • Urban and Stored Products Entomology
    Session 23 - URBAN AND STORED PRODUCTS ENTOMOLOGY [4018] ANALYSING mE IMPACT OF TERETRIUS NIGRESCENS ON [4020] NEAR-INFRARED SPECTROSCOPY APPLIED PROSTEPHANUS TRUNCATUS IN MAIZE STORES IN WEST AFRICA PARASITOIDS AND HIDDEN INSECT LARVAE, COLEOPTERA, AND CHRONOLOGICAL AGE-GRADING N. Holsl'. W. G. Meikle', C. Nansen' & R. H. Markham', 'Danish lnsl. of Agricultural Sciences, Aakkebjerg, 4200 Siagelse, Denmark, E-mail [email protected]; F. E. Dowell', J. E. Throne', A. B. Broce', R. A. Wirtz', J. Perez' & J, E. Baker', 2International Insl. of Tropical Agriculture, 08 B. P. 0932 Tri-postal, Cotonou, Benin. 'USDA ARS Grain Marketing and Production Res. Center, 1515 College Ave .. Manhattan, KS 66502, USA, E-mail [email protected]; 2Dept. of Entomol., Kansas Since its accidental introduction into East and West Africa in the early 1980's the larger State Univ., Manhattan, KS 66506; 'Entomo!. Branch, Division of Parasitic Diseases, grain borer, Prostephanus truncarus (Co!.: Bostrichidae), has been expanding its Centers for Disease Control and Prevention, Atlanta; GA 30341. geographical range and is rapidly becoming the most serious pest on stored maize and cassava in the whole sub-Saharan region. In its wake, scientists and extension officers Near-infrared spectroscopy (NlRS) was used to detect parasitoids in insect-infested wheat have been releasing the predator Teretrius (Teretriosoma) nigrescens (Col.: Histeridae) as kernels or parasitoids in house fly puparia, to detect hidden insects in grain. to identify a means of biological control. Based on results obtained in the early 1990' s in the initial stored-grain Coleoptera, and to age-grade Diptera. In tests to detect parasitized rice area of release in Togo and Benin, T.
    [Show full text]
  • PESTS of STORED PRODUCTS a 'Pest of Stored Products' Can Refer To
    PESTS OF STORED PRODUCTS A ‘pest of stored products’ can refer to any organism that infests and damages stored food, books and documents, fabrics, leather, carpets, and any other dried or preserved item that is not used shortly after it is delivered to a location, or moved regularly. Technically, these pests can include microorganisms such as fungi and bacteria, arthropods such as insects and mites, and vertebrates such as rodents and birds. Stored product pests are responsible for the loss of millions of dollars every year in contaminated products, as well as destruction of important documents and heritage artifacts in homes, offices and museums. Many of these pests are brought indoors in items that were infested when purchased. Others originate indoors when susceptible items are stored under poor storage conditions, or when stray individual pests gain access to them. Storage pests often go unnoticed because they infest items that are not regularly used and they may be very small in size. Infestations are noticed when the pests emerge from storage, to disperse or sometimes as a result of crowding or after having exhausted a particular food source, and search for new sources of food and harborage. Unexplained occurrences of minute moths and beetles flying in large numbers near stored items, or crawling over countertops, walls and ceilings, powdery residues below and surrounding stored items, and stale odors in pantries and closets can all indicate a possible storage pest infestation. Infestations in stored whole grains or beans can also be detected when these are soaked in water, and hollowed out seeds rise to the surface, along with the adult stages of the pests, and other debris.
    [Show full text]
  • STORED SEED INSECTS and THEIR CONTROL Stanley Coppock 11
    STORED SEED INSECTS AND THEIR CONTROL Stanley Coppock 11 Primary Gra i n Insects There are only a few primary grain insects, that is, insects capa­ ble of destroying sound grain. The most important of the basic grain destroyers include the rice weevil, granary weevil, pea and bean wee­ vils, lesser grain borer and anguomois grain moth. Of these grain pests, the rice weevi l, lesser grain borer and pea and bean weev ils are the most widespread and also do the most damage to seed and commercial grain. The rice and granary weevils are simi lar in appearance and life histories and do the same kind of damage. However, the rice weevil is more important for it is capable of l aying eggs on the grain in the field. It also is capable of flight, whereas the granary weevi l is not. Both of these pests lay eggs, they then hatch and the young l arvae tunnel into the grain and devour its contents. Pea and bean weevi l s attack almost all seeds of the pea and bean family. Peas and beans may either be attacked in the field or in the granary. These insects are often insidious in that beans and peas may be infested in the field and not show that an infestation is present. Therefore, during the storage period heavy damage can be done to the seed. The lesser grain borer is perhaps the most widespread of our pri­ mary grain insects. In many states it is considerably more prevalent in stored grain and seeds than are the other weevils.
    [Show full text]
  • Clothes Moth.Pub
    CORNELL COOPERATIVE EXTENSION OF ONEIDA COUNTY 121 Second Street Oriskany, NY 13424-9799 (315) 736-3394 or (315) 337-2531 FAX: (315) 736-2580 CLOTHES MOTHS INJURY: There are two species of clothes moths that commonly infest homes, the case-making clothes moth (Tineola pellionella) and the webbing clothes moth (Tineola bisselliella). It is the caterpillar (larval stage) of these insects that does the actual feeding. Clothes moths feed on all kinds of dry materials of animal origin including woolens, mohair, hair, bristles, fur and feathers. Holes are chewed in items or threadbare spots caused where fibers are chewed in carpeting. Household items that may be attacked include clothing, drapes, pillows, hair mattresses, brushes, upholstery, furs, piano felts or other natural or synthetic fabrics mixed with wool. Silken feeding tubes or hard pro- Case-making Clothes Moth tective cases are often found on infested fabrics. DESCRIPTION: The adult moths of these two species look very much alike. They are yellow- ish-tan to buff-colored with a wingspread of about ½ inch. The larvae are white with brown to black heads, and are also about ½ inch long. The case-making clothes moth larvae spin a protec- tive case out of silk and material fibers, often blending in with the fabric so damage is not noticed until a bare spot or hole is produced. The webbing clothes moth spins silk over the fibers it is feeding on but does not form a case around itself until ready to enter the pupa (resting stage). Webbing Clothes Moth Adult & Larvae LIFE HISTORY: Female clothes moths deposit soft white eggs in clothing and household furnishings.
    [Show full text]
  • Angoumois Grain Moth Introduction Recognition
    ANGOUMOIS GRAIN MOTH INTRODUCTION The Angoumois grain moth is so named because it was first reported destroying grain in this French province. It is of worldwide distribution and was introduced into North Carolina in 1728 from Europe. In the United States, it is considered second only to granary and rice weevils as a pest of stored grain. RECOGNITION Adults with wingspread (wing tip to wing tip) about 1/2-5/8" (12-17 mm). Color buff to pale yellowish brown. Hind wings abruptly narrowed at tip towards front wing and fringed/margined with hairlike scales, about as long as wing is wide. Mature larva up to about 1/4" (7 mm) long. Color white with yellowish head and dark reddish-brown mouthparts. With 5 pairs of rudimentary (poorly developed) prolegs on abdomen, each with only 2 or 3 crochets (hooks). Body with primary setae (hairs) only, lacking tufted or secondary hairs. Perspiracular tubercle (wartlike area between spiracle and front edge of segment) on prothorax with 3 setae (hairs). BIOLOGY The female lays an average of 40 (range to 389) white eggs on or near grain. These turn red with age and hatch in 4-8 days. The 1st instar larva bores into a whole kernel and passes through a total of 3 instars in about 3 weeks, but may hibernate before pupation. It pupates within the hollowed-out kernel, and the pupal period lasts about 10-14 days. In warm climates the life cycle (egg to egg) usually requires 5-7 weeks, but may take 6 months in cool climates.
    [Show full text]
  • Vienna IPM Intro
    Integrated Pest Management (IPM) in Museums, Archives and Historic Houses - Proceedings of the International Conference in Vienna, Austria 2013 Edited by: Pascal Querner, David Pinniger and Astrid Hammer Section III: Treatment Methods - Contents - Section III Treatment methods ................................................................................................................ 205 The New EU Biocides Regulations 528/2012 and the effect it will have on museum IPM Child, Robert E. ....................................................................................................................................... 206 Anoxia treatment using oxygen scavengers for disinfestations of large museum objects Biebl, Stephan & Landsberger, Bill ........................................................................................................ 210 Biological control of cultural heritage pests – a review Schöller, Matthias & Prozell, Sabine ...................................................................................................... 218 Parasitoids against insect pests - a future for IPM? Anheuser, Kilian ...................................................................................................................................... 233 IPM at the V&A Museum and preventive treatments using Thermo Lignum™ Blyth, Val ................................................................................................................................................ 240 Investigation of the use of freezing against insect pests
    [Show full text]
  • Clothes Moths (Tineola Species)
    CLOSE ENCOUNTERS WITH THE ENVIRONMENT What’s Eating You? Clothes Moths (Tineola Species) Bethany R. Rohr, MD; R. Patrick Dorion, MD live approximately 1 month. Once laid, eggs hatch within 1,3 PRACTICE POINTS 4 to 10 days. The larvae (caterpillars) incur damage to • Clothes moth larvae are common household pests clothes and other household goods. Fully mature larvae that may be misidentified as a parasitic infection are 12- to 13-mm long, and the Tineola species have such as myiasis when found on a person. white- to cream-colored bodies with brown heads. The • Understanding the basic biology of clothes moths webbing clothes moth larva lacks ocelli (eyes), while the will help the clinician identify an infestation and casemaking mothcopy larva has a singular ocellus.1 appropriately counsel patients that clothes moths do not pose a considerable health risk. Transmission An infestation is evidenced by woolen items that have furrows or holes in them. Pheromone traps also can exposenot an active infestation.3 The webbing moth larvae Common household insects can be confused with ectoparasites. can be found beneath a self-spun silken mat on the food Understanding the basic identification and monitoring techniques of source that offers the insect protection and camouflage clothes moths will help the clinician identify if a patient has an infesta- while it eats; the mat collects frass (feces) and clothes tion of the household versus his/her body. Clothes moth larvaeDo are particles. 1,3,4 The casemaking moth larvae drag around a not parasites but are found on infested clothing and can be confused portable silken bag that takes on the color of the fabric with myiasis.
    [Show full text]