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我省塑料大棚、温室及立壕子等保护地的黄瓜面积很大,产值很高,每亩收益达万元以上,是菜农脱贫致富的重要途径。但蚜虫为害严重,红蜘蛛、圆跳虫(俗称地蹦子)等也时有发生。由于蚜虫对乐果、菊酯等农药产生了抗性,因而加大了药液浓度和打药次数,打药后往往于当日或次日即采摘出售,污染严重,威胁人体健康。为此,辽宁省农科院植保所菜虫研究组,自1986年以来经4年研究,研制出
The cucumbers in plastic greenhouses, greenhouses and standing moats in our province are large in area with high output value, and the yield per mu has reached over 10,000 yuan, which is an important way for farmers to get out of poverty and get rich. However, serious damage to aphids, spider mites, roundworms (commonly known as jumping) and so on have also occurred. As aphids on dimethoate, pyrethrum and other pesticide resistance, thus increasing the liquid concentration and the number of fight drugs, often after the fight on the day or the next day that is picked for sale, serious pollution, threatening human health. To this end, Liaoning Academy of Agricultural Sciences Institute of plant protection cabbage insects and insects, since 1986, after 4 years of research, developed