Efficacy of fenoxycarb (Pictyl) against Psorophora columbiae in Arkansas ricefields.

The IGR, fenoxycarb was effective against mosquitoes in both small rice plots and commercial ricefields in southeast Arkansas at the rate of 10 g AI/ha. It adequately controlled Psorophora columbiae populations. This compound shows excellent promise as a tool in effective IPM schemes against Ps. columbiae larvae in Arkansas rice fields by acting as a direct control, and possibly by indirectly increasing their vulnerability to natural controls.