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Pantry Pests & Perceived Threats - Bees, Wasps & Others David J. Shetlar, Ph.D. The “BugDoc” The Ohio State University, OARDC & OSU Extension Columbus, OH © July, 2002, D.J. Shetlar, all rights reserved
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Beetles (& weevils) Moths Mites Stored Products Pests (=Pantry Pests)
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Beetle Pantry Pests (by food type) Internal FeedersWeevils Grain borer External FeedersCigarette & Drugstore beetles ScavengersGrain & flour beetles Secondary Feeders (old/moldy foods) Mealworms Spider beetles
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Bean weevils Cigarette beetles Sawtooth Grain beetles
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Indian meal moth (dried fruits, processed grains, bird seed, dry pet food) Mediterranean flour moth (processed grains) Almond Moth (processed grains) Angoumois grain moth (whole grains - often in farm granaries) Moth Pantry Pests
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Indian Meal moth
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Beetle, Moth & Mite Pantry Pest Management Monitor (visual inspection, pheromone traps) Sanitation (destroy infested materials) Exclusion (store foods in tightly sealed containers, in freezer if possible) Freeze or heat infested products (150°F for 20 minutes or 0°F for four days) Fumigate (large food stores only!)
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Fiber, Skin & Paper Pests Carpet Beetles (black carpet beetle, furniture carpet beetle, carpet beetle) Clothes Moths (webbing clothes moth, casemaking clothes moth, carpet moth) Silverfish & Firebrat (silverfish, firebrat, fourlined silverfish)
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Common carpet beetle Black carpet beetle
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Webbing clothes moth
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Silverfish Fourlined silverfish
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Fiber, Skin & Paper Pest Management Monitor (visual inspection, identify species, ONLY natural fibers at risk) Exclusion (store woolens & furs in tightly sealed containers, in freezer if possible) Repell (“moth crystals” = paradichloro- benzene not recommended) Freeze or heat infested products (150°F for 20 minutes or 0°F for four days; may damage furs) Fumigate (professionals only!)
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Nuisance & Filth Flies House Fly Blow Flies Flesh Flies Fruit Flies Moth Flies (drain fly) Cluster Fly Phorid Flies
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House flyStable fly Fruit fly Cluster fly
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Nuisance & Filth Fly Pest Management Monitor (identify species involved) Sanitation (destroy attractants – food & breeding materials; remove pet feces) Exclusion (store foods in tightly sealed containers; seal trash & garbage) Exclusion (seal buildings – window screens, door sweeps) Traps (sticky traps, light traps) Pesticides (surface residuals, aerosols – last resort! Use on exterior in severe cases.)
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Occasional Invaders Spiders Earwigs Millipedes, centipedes, sowbugs Bugs (pine leaffooted, boxelder) Asian multicolored lady beetle Clover mite
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Brown recluse spider (=fiddleback) Black Widow spider
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Shore earwig European earwig with eggs
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Millipede (Diplopoda) Centipede (Chilopoda) Sowbug/pillbug (Isopoda)
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Occasional Invader Management Monitor (identify species involved, find outside sources) Modify Landscape (reduce foundation plantings, organic mulches, aphid & scale prone plants) Exclusion (caulk & seal doors & windows; fix screens & door sweeps) Mechanical Destruction! Pesticides (“scheduled” parameter & baseboard sprays not recommended!)
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Stinging Insects Social Wasps & Hornets (yellowjackets, baldfaced hornet, Polistes, etc.) Solitary Wasps & Bees (carpenter bee, cicada killer, muddaubers, etc.) Honey Bees & Bumble Bees (“killer bees” not expected in Ohio!) Ants (Fire ants not expected in Ohio!)
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Yellowjacket
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Baldfaced Hornet
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Polistes Wasp = Umbrella Wasp
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Carpenter Bee
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Cicada Killer
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Digger Wasp (feeds on horse flies!) Ground Wasps (feed on caterpillars!) Muddauber nest (feed on spiders!
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Honey bee swarming Bumble bee
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Stinging Insect Management Monitor (identify species involved; find nesting site) Modify Landscape (reduce ground covers, thick mulch layers, maintain turf) Exclusion (caulk & seal access to all voids; fix screens; tightly seal garbage & dumpsters) Mechanical Removal (professionals only!) Pesticides (“Wasp & Hornet” sprays – prefer professional use!) Education (notify residents of offensive materials – musk oils & strong perfumes/deodorants, body odor, patterned clothing)
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http://www.ag.ohio-state.edu/~ohioline/index.html
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Come visit the BugDoc at: http://bugs.osu.edu
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