Abstract
Adult European tarnished plant bugs, Lygus rugulipennis Poppius, were released on the leaves ofRumex obtusifolius dipped in insecticide. Bug mortality at 24 or 48 hours after release was higherfrom organophosphates than pyrethroids. Among the organophosphates tested, cyanophos (CYAP) and fenthion (MPP) were the most effective, followed by fenitrothion (MEP) and phenthoate (PAP).When adult bugs were released onto the leaves and/or pods of the adzuki bean, Vigna angularis, afterspraying with CYAP or MPP in the field, the mortality of bugs was high 0.3 days after spraying, decreasing within 2 days for both insecticides.
