Evaluation of Some Carbamate and Phosphate Insecticides Against Southern Pine Beetle and Ips Bark Beetles

Six insecticides were tested on southern pine beetle, Dendroctonus frontalis Zimmerman, to determine effects on established brood and ability to prevent attacks of Ips engraver beetles. The insecticides were: lindane as a reference; 2 carbamate insecticides, propoxur and carbaryl; and 3 organophosphates, acephate, phosmet, and diazinon. Only lindane significantly reduced established southern pine beetle broods. Phosmet caused high mortality of adult beetles within 24 h after emergence from treated pines. Lindane, propoxur, and carbaryl were effective in preventing Ips grandicollis Eichoff and I. calligraphus Germar attacks on loblolly pine logs.