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研究地膜覆盖对几种杀虫剂防治田间宿根甘蔗螟虫效果的影响,发现地膜覆盖的杀虫剂防效均较无膜覆盖的高,药后75 d,5%杀单·毒死蜱颗粒剂、35%氯虫苯甲酰胺水分散粒剂和300 g/L氯虫·噻虫嗪悬浮剂3种杀虫剂在地膜覆盖条件下对甘蔗螟虫的防效分别达到88.35%、87.77%和87.08%,显著高于无膜覆盖的74.62%、60.26%和72.87%,也高于有地膜覆盖的其他两种药剂的防效。建议在蔗区推广这3种杀虫剂并结合地膜覆盖方式防治宿根甘蔗螟虫。
The effects of plastic film mulching on the control effect of several pesticides on field-stalked sugarcane borers were studied. It was found that the mulching-covered insecticides were more effective than the non-membrane-covered ones. After 75 days of treatment, 5% The control effects of the three pesticides against chlorantrania septempunctata and the insecticides of chlorantraniliprole and thiamethoxam 300 g / L were 88.35%, 87.77% and 87.08%, respectively, under the conditions of mulching, Significantly higher than the non-membrane covered 74.62%, 60.26% and 72.87%, also higher than the other two drugs covered with plastic film control effect. Proposed in the sugarcane area to promote these three kinds of insecticides and combined with plastic film mulching method to control pests.