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为了解决夏收夏种期间黑尾叶蝉迁飞高峰期虫量大、劳力紧、药械少、农药成本高等问题,经济有效地控制黑尾叶蝉迁飞入早插本田,消灭老蚰虫,预防矮缩病,绍兴县红旗公社农技站对边行喷药封锁的效果作了试验。试验于1973年8月份进行。选4块早插农虎田,设4个处理:8月3日前治虫1次,打边行3次,治虫2次,治虫5次。于8月15、24、31日和9月11日分别调查黑尾叶蝉卵寄生率,于8月6、9、12、17、23、31日和9月10日分别调查黑尾叶蝉三、四代虫口密度。同时在团结六队
In order to solve the problem of the large amount of worm, the tight labor, less drugstores and the high cost of pesticides during the summer rush-off period, it is necessary to control the migration of the black-crested leafhopper into the field and the elimination of the old pinworm. Dwarf disease, Shaoxing County Red Flag commune agricultural station on the side line of the effect of the blockade test was tested. The test was conducted in August 1973. Choose 4 early farmland tiger field, set 4 processing: August 3 before the worm 1 times, hit the line 3 times, worm 2 times, worm 5 times. The parasitism rate of black-tip leafhopper eggs was investigated on August 15, 24, and 31, and September 11 respectively. The black-tip leafhoppers were surveyed on August 6, 9, 12, 17, 23 and 31 and September 10 respectively. Third, fourth generation insect population density. At the same time in unity six teams