Methomyl Insecticide and Domesticated Pollinators
Abstract
Susceptibility to methomyl sprays was greatest for the alfalfa leafcutting bee, Megachile rotundata (F); least for the honey bee, Apis mellifera L.; and intermediate for the alkali bee, Nomia melanderi Cockerell. Methomyl at 1.12 kg (AI)/ha had low residual hazard to honey bees, and at 0.6 kg (AI)/ha it had low residual hazard to leafcutting and alkaki bees after one day. Field tests of methomyl on pollen-shedding corn, blooming red raspberry, and blooming blueberry resulted in reduced bee visitation and low adult bee mortality.
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