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22 Cards in this Set
- Front
- Back
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Stable flies
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bite ventral side, horses stomp to deter flies, transmit summer sores
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No-see-ums (horses)
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Bite horses under mane/base of tail, transmit filiarial disease
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Nematode
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Causes ventral midline dermatitis in horses
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Bot flies
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Oviposit on legs, horses lick up, develop in horse's stomach, ivermectin/organophosphates to control flies once a year, bot flies not vector
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Horse flies
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Oviposits on leaves, adult females blood feeders, large and black
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Deer flies
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Equine infectious anemia can cause body to shut down via liver/kidney failure, IDed with antibody test, foals contract disease from milk, place fly traps in barn to control
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EIA transmission research
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Paint patches on horses with EIA, flies that visited EIA horses got paint on bodies, paint colour on flies tells where they landed so can determine how far insects moved. EIA transmitted up to 200 metres
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Horn flies
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Obligate cattle blood feeders, oviposit on cow dung, cows flick tails in groups for relief. Economic threshold measured by counting flies, 50+ per side = treat. Cows lose weight/value due to stress. Vector of mastitis.
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Warble flies
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Historic pest, not a problem in this area any more
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No-see-ums (cattle)
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May vector EPD to cattle
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Tabanid flies
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Vector bovine leukemia
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What flies lay eggs in wounds and droppings of cattle?
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Muscid, tabanid
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Horn flies
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Economic threshold measured by counting flies on cow, 50+ per side = treat
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Types of control (8)
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Ear tags with deterrent, dusters, pour-ins, fly spray, misters, insect growth regulators, biocontrol, vacuum
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Ear tags
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Impregnated with deterrent, short term
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Dusters
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Dust organophosphates on animal, difficult to get consistent delivery
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Pour-ons
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External/internal insecticides, some require wait time between application and when animal product can be used
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Fly spray
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Spray on horse, comes off with sweat or water
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Misters
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Placed in enclosure to apply pesticides, reduce EHD, sometimes water can seep into devices and be contaminated with disease
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Insect growth regulators
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Fed to horses so they become "applicator", can contain chitinase inhibitors to prevent developing in droppings, doesn't work in cattle because doesn't reach high enough concentration in droppings
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Biocontrol
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Release wasps, larvae often outlive wasps so require multiple releases
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Vacuum
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Attach tractor and drive through field to vacuum droppings, very effective
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