淀粉液防治介壳虫会增大蚜虫和螨类危害我校教研组在校园内和附近的两个乡的柑桔园中，用２．５％一３．０％的红薯淀粉液和小麦淀粉液防治矢尖蚧，防治效果理想。但是这样防治后却引起了红、黄蜘蛛和蚜虫的大量发生，有的甚至比未进行任何防治的危害严重。究其原因，有以... Starch liquid control scale insects will increase the harm of aphids and mites My school teaching and research group in the campus and nearby two citrus orchards in rural areas, with 2.5% of a 3.0% sweet potato starch solution and wheat starch solution Sagittal, control effect is ideal. However, such prevention and treatment caused a great deal of occurrence of red, yellow spiders and aphids, and some even worse than none. The reason, there is ...