The sub-lethal effects of foliar fungicides on the mustard beetle, Phaedon cochleariae (F.) (Col., Chrysomelidae).

Abstract

The performance of the mustard beetle, Phaedon cochleariae (F.), treated orally and topically with a range of foliar fungicides was assessed using data on several life-history variables. For some compounds a significant effect on the insect's developmental period and/or fecundity was demonstrated. P. cochleariae larvae were shown to exhibit repellency towards host plants treated with some of the fungicides.