Effect on honey bees of dicrotophos and methomyl applied as sprays to white clover

Abstract

Dicrotophos and methomyl, applied at the rate of 0.5 kg active ingredient per ha to flowering white clover (Trifolium repens L.) in the evening after bees had ceased flying, caused bee mortality for 7 and 8 days respectively after spraying. Both dicrotophos and methomyl showed no evidence of repellency to bees. © 1973 Taylor & Francis Group, LLC.