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熏蚜颗粒剂Ⅱ号防治保护地黄瓜蚜虫和白粉虱效果好保护地黄瓜生产上蚜虫和白粉虱为害很重。1990~1993年我们试用熏蚜项粒剂Ⅱ号进行防治(面积2.5亩)效果明显。1.防治蚜虫效果:熏蚜颗粒剂Ⅱ号施药后24小时平均杀虫效果98.5%,比40%氧化乐果(1...
Smoked aphids granules No. II prevention and control of cucumber aphids and whitefly good protection of cucumber production on aphids and whiteflies is very heavy. From 1990 to 1993, we experimented with smoked aphid aphids No. Ⅱ for prevention and treatment (an area of 2.5 acres) effect is obvious. 1. Aphid control effect: smoked aphid granules No. Ⅱ application 24 hours after the average pesticidal effect of 98.5%, 40% omethoate (1 ...