据石家庄地区农科所何丽泉1988年对防治棉花害虫的几种药剂试验,现选登最佳效果,供棉农参考。 1、可湿性甲胺磷粉防治棉花伏蚜。可用可湿性甲胺磷粉兑水100倍喷雾,1—7天杀蚜虫果为96.5—100％。 2、克蟥特防治棉红蜘蛛。利用75％克螨特乳剂2500倍液喷雾,1—10天杀螨效果达96.6—98％。 3、甲氰菊酯防治棉铃虫。用15％甲氰菊酯乳剂2500倍液喷雾,防治棉铃虫效果好,1—10 According to He Liquan, an agronomic institute in Shijiazhuang, 1988, tests were conducted on several pesticides for controlling cotton pests. The best results are now selected for reference to cotton farmers. 1, wet methamidophos powder control cotton aphids. Available wettable methamidophos powder watered 100 times spray, 1-7 days to kill aphids fruit 96.5-100%. 2, Keshi special cotton spider control. The use of 75% mite special emulsion 2500 times spray, 1-10 days to kill mite effect of 96.6-98%. 3, fenpropathrin control bollworm. Sprayed with 15% fenpropathrin emulsion 2500 times, the effect of controlling cotton bollworm is good, 1-10