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甘蔗螟虫、蓟马、绵蚜虫是我县甘蔗的主要害虫,同时几种螟虫(二点螟、条螟、黄螟)的发生期也不同,且其成虫期也拖得较长(约40天左右),蓟马、绵蚜虫世代重叠.对此我们选用呋喃丹作为同时防治甘蔗上述几种害虫的药剂.为了摸索呋喃丹深施对甘蔗几种害虫的防治效果,适宜的用药期、用药量及其对甘蔗的作用,1982年至1984年我们作了不同用药量和不同用药时间的试验.现将试验情况总结如下:
Sugarcane borers, thrips, and cotton aphids are the major pests of sugarcane in our county. At the same time, the occurrence of several stem borers (the two borers, the striped borer and the yellow-boreal weevil) are also different, and their adult stages also drag longer (about 40 days ), Thrips, cotton aphids generations of overlapping.To this we use carbofuran as the same time as the control of sugar cane above several insecticides.In order to explore the effect of carbofuran deep on the control of several pests of sugarcane, the appropriate duration of medication, dosage And its effect on sugar cane, we made different doses and different medication time from 1982 to 1984. The test results are summarized as follows: