Studied on the Toxicity of Different Insecticides to Against Megalurothrips usitatus by Using a Modified TIBS Method

The toxicity of 12 insecticides to against the nymph and adult of Megalurothrips usitatus by using a modified TIBS(thrips insecticide bioassay system) method in the laboratory conditions. The results showed that the toxicity of thiocyclam and pyrethroid insecticides was low, whereas the other insecticides tested in this study were high. However, the toxicity of insecticides to nymphs was higher than adults. Comprehensive analysis of the toxicity of different insecticides to the nymph and adult of M. usitatus, spinetoram, emamectin benzoate, clothianidn,acetamiprid, abamectin and thiacloprid were proposed to use in the field for control this thrips pest.