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本实验选用九种内吸杀虫剂 ,采用培养皿叶背喷雾法和指形管叶面喷雾法对截形叶螨实验种群进行了室内药效实验 .结果表明 :黑杀手和氧乐果的药效最好 ,在培养皿叶背喷雾法中均达 96%以上 ,而在指形管叶面喷雾法中均达 87%以上 ;在喷药后的第一天和第三天 ,培养皿叶背喷雾法的药效比指形管叶面喷雾法的药效分别高 36.61 %和 1 0 .58% .因此 ,防治截形叶螨时 ,应选用黑杀手和氧乐果 ,而且施药时最好是叶背喷药 ,以提高杀虫剂的药效
In this experiment, nine kinds of systemic insecticides were selected, and the laboratory efficacy test was carried out on the experimental population of Tetranychus truncatus by using the petri dish leaf back spray method and the finger tube foliar spray method.The results showed that the black killer and the omethoate The best efficacy in petri dish spray back law were up to 96%, while in the finger-tube foliar spray method reached more than 87%; spray the first day and the third day, the Petri dish Leaf back spray method than the finger tube foliar spray efficacy were 36.61% and 10.08%, respectively. Therefore, the prevention and control of truncated spider mites, black killer should be used and omethoate, and the application of pesticides When the leaves are best spray, in order to improve the efficacy of pesticides