不同杀虫剂对茶小绿叶蝉和蓟马的防效比较

为筛选防治茶小绿叶蝉和茶蓟马两种害虫安全高效的药剂，采用田间喷雾方法测定5种杀虫剂对茶小绿叶蝉和茶蓟马的控制效果，结果表明：在茶小绿叶蝉和茶蓟马发生期，5种药剂对茶小绿叶蝉和茶蓟马具有不同的控制效果，对茶叶无害安全性都很好，其中，20%呋虫胺对茶小绿叶蝉和茶蓟马的综合防治效果最佳，持效期长，施药14d后对两种害虫的防治效果依然在85%以上；其次为30%吡丙谜·虫螨腈，防治效果达80%以上；60克/升乙基多杀菌素防治茶蓟马，防治效果达80%以上，但持效期短；240克/升虫螨腈防治效果较差；80亿孢子/毫升金龟子绿僵菌综合防治效果见效慢，但有一定的防治效果；所以在实际生产应用中，可根据茶叶生产用药标准选择不同的药剂进行防治，从而减少损失。

Control effect of different pesticides on tea leafhopper and tea thrips

In order to screen the effective drug of the prevention and treatment of tea leafhopper and tea thrips, This article use the field spray method to measure the control effect of five kinds of pesticides on little green leafhoppers and tea thrips, Results show that, in the early growth period, five kinds of medicament have different control effect on tea leafhopper and tea thrips, and also harmless to the tea safety. In the five kinds of medicament, 20% dinotefuran has the best effect on tea leafhopper and tea thrips, and has a persistent effect, after 14 days, control effect of 20% dinotefuran is still above 85%; Secondly, control effect of 30% Pyripromyr ? Acaronitrile pyrazole can be more than 85%. Also, we can use 60 g/l spinetoram prevent tea thrips, its control effect can be above of 80%, but its effective is short; control effect of 240 g/l chlorfenapyr is poorer; In addition to that, control effect of 8 billion spores per milliliter of Metarhizium anisopliaet is more slowly, but it has certain prevention and cure effect ;So in actual production application, we can choose different agents according to the different standard for prevention and control, and thus to minimize damage.