几种新药剂对茶叶瘿螨的防治效果

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摘要：采用盆栽和室内试验，测定了几种新药剂对茶叶瘿螨的防效。结果表明，99%矿物油乳油100～200倍和0.6%苦参碱水剂1 000～2 000倍、0.3%印楝素可溶液剂500倍和1.5%除虫菊素水乳剂500倍，药后7 d的防效均在90%以上。矿物油和3种植物源农药对茶叶瘿螨有良好的防治效果。

关键词：茶叶瘿螨;矿物油;苦参碱;印楝素;除虫菊素;防效

The Control Effects of Several New

Pesticides on Calacarus carinatus

WANG Lizhong1， YAO Huiming2， TANG Meijun2*， XIAO Qiang2

1. Ningbo Fenghua District Agricultural Technical Service Station， Fenghua 315500， China;

2. Tea Research Institute， Chinese Academy of Agricultural Sciences， Hangzhou 310008， China

Abstract： The control effects of several new pesticides on Calacarus carinatus were determined by the pot and laboratory experiments. The results show that the control efficacies of 99% mineral oil  emulsion （100～200 times） and 0.6% matrine aqueous solution （1 000～2 000 times） and 0.3% azadirachtin  aqueous solution （500 times） and 1.5% pyrethrin aqueous emulsion （500 times） were all above 90% on the 7th day after spray. The mineral oil and the three plant pesticides tested had good control effects on Calacarus carinatus.

Keywords： Calacarus carinatus， mineral oil， matrine， azadirachtin， pyrethrin， control effect

茶叶瘿螨（Calacarus carinatus）又称龙首丽瘿螨、茶紫瘿螨等，蜱螨目，瘿螨科，是茶园常见的一种害螨。（剩余2867字）