10%烟熏死烟剂防治保护地黄瓜瓜蚜试验研究

Study on Yanxunsi Smoke Agent for Controlling Cotton Aphid (Aphis gossypii Glover) in Greenhouse

试验结果表明:10%烟熏死烟剂(有效成分为异丙威+吡虫啉)对保护地黄瓜瓜蚜防效优良、速效性好,且对黄瓜安全。该烟剂防治瓜蚜在其不同发生期均可施用,适宜剂量为750 g/hm2,药后1 d的防效可达92.5%以上,药后7 d的防效仍达90.7%以上,较空白对照增产18.9%。

The experiment was conducted to measure control effect of Yanxunsi smoke agent （isoprocarb ＋ imidacloprid） on cotton aphid in greenhouse. The results showed that the smoke agent had excellent control effect on the aphid, killing action was quick, and it was also safe to cucumber. The smoke agent could be applied at any occurrence period of the aphid, suitable application rate was 750 g/hm^2, control effect on the aphid 1 day after application was over 92. 5%, and efficacy 7 days after application could reach higher than 90. 7%,increase production rate was 18. 9%.