稻飞虱是中稻中后期的主要害虫,1984年我们进行了甲胺磷颗粒剂防治三代稻飞虱及对稻田蜘蛛等天敌影响的试验。 试验农药为3％的甲胺磷颗粒剂。对照农药是甲六混合粉(含有效成份1.5％的甲基1605加3％的六六六粉)和用甲磷粉(含有效成份1.5％的甲胺磷加1.5％的甲基1605)。各农药药量均为3斤/亩,拌细黄土50斤撒施,设不施药为空白对照。各处理随机区组排列,重复三次。小区面积0.05亩。 Planthopper is the main pest in mid-late rice. In 1984, we conducted experiments on the effects of methamidophos on three generations of planthoppers and their natural enemies such as spiders. The test pesticide was 3% methamidophos granules. The control pesticides are A and B mixed powder (containing 1.5% of methyl 1605 plus 3% of 6666) and A powder (1.5% of methamidophos plus 1.5% of methyl 1605). The pesticide doses are 3 pounds / mu, 50 pounds mixed fine loess sprinkle, set no drug as a blank control. The treatment of random block arrangement, repeated three times. Community area of ​​0.05 acres.