二种混剂对二种叶螨的毒力比较

Comparison of the Toxility Degree Between Two Kinds of Mixed Insecticides to Two Kinds of Mites

摘要:

三杀甲氰乳油对苹果红蜘蛛和山楂红蜘蛛致死浓度分别为63.44μl/L和79.45 μl/L,共毒系数分别为348.25和237.86;敌畏甲氰乳油对苹果红蜘蛛致死中浓度分别为75.54μl/L和85.96 μl/L,共毒系数分别为292.09和277.53。上述二种混剂对苹果红蜘蛛和山楂红蜘蛛均明显增效。

Abstract:

The lethal dosage densities of discofol+fenpropathrin for apple red spider mites and haw red spider mites are 63.44 μl/L and 79.45 μl/L Seperately,and the corresponding poison coefficient are 348.25 and 237.86.As for the dichlorvos+fenpropathrin,the densities are seperately 75.54 μl/L and 85.96 μl/L and the poison coefficient are 292.09 and 277.53.The mixed insecticides have significant effect to kill the two mites.