Grooming Techniques Flashcards
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Which formulation type of insecticide is most enhanced in efficacy by cockroach autogrooming behavior?
Answer: Dusts and desiccant powders
Dust and desiccant formulations adhere to cockroach cuticle and appendages and are ingested during grooming, providing dual contact and oral exposure.
Isopropyl alcohol is sometimes used in laboratory entomology to clean insects. What is the primary reason for cleaning specimens before pinning?
Answer: To remove oils and debris that attract dermestid beetles
Residual oils and organic debris on pinned specimens attract museum pests like dermestid beetles that damage collections.
Which genus of parasitic mites on honey bees is controlled in part by selecting for enhanced grooming behavior in bee colonies?
Answer: Varroa
Varroa destructor is the primary target of grooming-based resistance breeding programs in honey bees.
In Integrated Pest Management (IPM), understanding that insects groom after walking across boric acid deposits is most relevant to treatments targeting which pest?
Answer: All of the above equally
All cockroach species engage in autogrooming, making boric acid dust effective against any cockroach species that contacts treated surfaces.
What is the primary behavioral reason that slow-acting (delayed) toxicants are preferred over fast-acting ones in social insect bait programs?
Answer: Workers survive long enough to return to the colony and transfer toxicant through grooming and trophallaxis
Delayed-action baits allow poisoned workers to return to the nest and share toxicant with nestmates, reproductives, and brood via social behaviors.
Leafcutter ants (Atta and Acromyrmex spp.) perform a specialized form of grooming on fungal garden material. What is the primary purpose of this behavior?
Answer: Removing pathogens and competitor microorganisms from the cultivated fungus
Leafcutter ants meticulously weed and groom their fungal gardens to remove parasitic fungi such as Escovopsis that would otherwise destroy the food source.
A technician applies a residual insecticide to a crawl space to control American cockroaches. Which grooming-related factor most affects how long the treatment remains effective?
Answer: Duration that the deposit retains sufficient particle size and adhesion for tarsal pickup
Residual efficacy depends on the deposit maintaining adequate particle integrity and surface adhesion so cockroaches pick up a lethal dose during grooming.