FIELD EVALUATION OF FENITROTHION FOR POST-ATTACK CONTROL OF THE SOUTHERN PINE BEETLE¹

One and 2% fenitrothion caused high mortality of southern pine beetles, Dendroctonus frontalis Zimmermann within billets removed from infested trees which had been sprayed. Mortality of beetles through 72 hours post-emergence was significantly higher than mortality of those which emerged from billets from lindane-treated trees.

Although lindane is superior to fenitrothion for prevention of SPB attack, fenitrothion was more effective for remedial control.