Effect of diflubenzuron on the productivity of the khapra beetle Trogoderma granarium.

The productivity of adults of Trogoderma granarium Everts that had been exposed as 3-day-old larvae to 0.8, 1.6 and 12.8 mg a.i. diflubenzuron/kg diet was adversely affected. When 7-day-old larvae were exposed, the productivity was reduced only at the highest concentration. Diflubenzuron had little influence on the productivity of adults. exposed as 14-day-old larvae. The highest dose of 12.8 mg a.i./kg diet caused 94, 80 and 76% mortality in larvae 3, 7 and 14 days old, respectively. Adult eclosion was not affected.