The results indicated that toxicity of the former was higher 1.7-3.5 times than the latter to the adults of Rhizopertha dominica,Sitopilus zeamais ,Tribolium confusum and Liposcelis bostrychophila.

• 室内模拟药效试验结果表明 ,5ppm的虫螨磷与 2 0 ppm的防虫磷的效果基本相同 ,而使用剂量降低 3/4。