Spruce Budworm Adult Spray Tests New Brunswick 1977
Goal(s)/Objective(s): Determine the effect on the insemination of resident females, of air-to-ground spraying timed to kill males.
Key Findings: Confirmed that the conclusion from the 1976 spray trials that air-to-ground spraying selectively kills old females was confirmed
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- Thomas, A. W.
Canadian Forestry Service - Miller, C. A.
Canadian Forestry Service - Greenbank, D. O.
Canadian Forestry Service
Adult spray trials were conducted in New Brunswick in 1977 to determine whether an early application of insecticide, timed to kill males, would significantly reduce insemination of females and thus reduce egg laying; and to determine whether motor stimulants combined with insecticide would increase the mortality of young females. The early spray application resulted in 85% male mortality, a 35% reduction in mating success, and a 31% reduction in oviposition. The motor stimulants (pyrethrin and piperonyl butoxide) had no effect on the mortality of young females.
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