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Medical, Urban, and Veterinary Entomology

Poster

MUVE: Vector Biology and Management

D3185: Laboratory insecticidal effects on honey bees versus adult Aedes mosquitoes

Wednesday, November 3, 2021
9:00 AM – 2:00 PM MT
Location:: Exhibit Hall F
In-Person Poster
Insecticide active ingredients including chlorpyrifos, permethrin, deltamethrin, bifenthrin, prallethrin and phenothrin were applied by contact to determine differential toxicity in a laboratory bioassay to Apis mellifera and Aedes albopictus. Mortality was assessed 24h post treatment and Probit Analysis used to determine LD50 (ug/g) for each. It was determined that chlorpyrifos (29x), permethrin (4x), phenothrin (11x), and bifenthrin (3x) were more toxic to A. mellifera than A. albopictus while deltamethrin (4x) and prallethrin (7.5x) were more toxic to A. mellifera than to A. albopictus. When analyzed by body weight (ug/g = mg/kg), all products were more toxic to mosquitoes than to bees, deltamethrin (19x), bifenthrin (215x), chlorpyrifos (2,338x), phenothrin (931x), permethrin (321x), and prallethrin (11x).