13种杀虫剂防治茶尺蠖室内药效试验

本文报道了13种杀虫剂在室内水培茶树枝条上模拟田间喷雾对茶尺蠖的药效试验。结果表明：乙基多杀菌素60克／升悬浮剂3000倍液、甲胺基阿维茵素苯甲酸盐3％微乳剂15000倍液、甲氧虫酰肼240克／升悬浮剂5000倍液、氰氟虫腙240克／升悬浮剂1500倍液．药后7d的防效均在91％以上，虫酰肼20％悬浮剂1000倍液的防效为86．48％．虽然氟虫双酰胺20％水分散粒剂6000倍液的防效稍低于上述5个处理的防效，但虫粪干重为第二少．其保叶效果仅次于乙基多杀菌素60克／升悬浮剂。因此，乙基多杀菌素60克／升悬浮剂、甲胺基阿维菌素苯甲酸盐3％微乳剂、甲氧虫酰肼240克／升悬浮剂、氰氟虫腙240克／升悬浮剂、虫酰肼20％悬浮剂、氟虫双酰胺20％水分散粒剂是比较理想的防治茶尺蠖的首选药剂．建议在茶园轮换使用。而对照药剂联苯菊酯10％乳油3000倍液对茶尺蠖的防效仅为23％．已不适合用于防治茶尺蠖。

The Laboratory Test of Thirteen Insecticides Against Eetropis Oblique Hypulina Wehrli

This paper reports the efficacy of 13 insecticides against Ectropis obliqua hypulina by spraying laboratory hydroponic young shoots of tea simulating field test. The results showed that： The control efficacy of spinetoram 60g/L SC 3 000 times solution, 3% emamectin benzoate emulsion 15 000 times solution, 240g/L methoxyfenozide SC 5 000 times solution, 240g/L metaflumizone SC 1 500 times solution, were all above 91% 7 days after treatment. The control efficacy of 20% tebufenozide SC 1 000 times solution remained 86.48%. Although the efficacy of flubendiamide 20% WDG 6 000 times solution is slightly lower than the above five treatments, the faeces dry weight were the second least, the foliage protection effect is only second to spinetoram. Therefore, spinetoram 60g/L SC, emamectin benzoate3% ME, methoxyfenozide 240g/L SC, metaflumizone 240g/L SC, tebufenozide 20% SC and flubendiamide 20% WDG are ideal insecticides to use rotationally to control Ectropis obliqua hypulina in the tea garden. The efficacy of bifenthrinlO%EC 3 000 times solution, the control insecticide were only 23%, not suitable for the pest control.