二季晚稻受叶蝉、飞虱的危害很普遍,有个别生产队,稻田受危害十分严重,造成水稻成片倒伏。为了做到省工、省药,经济有效地防治叶蝉飞虱,我们于1975年10月14日下午3时在农一队双晚田(品种农垦58)做了不同浓度敌敌畏熏蒸叶蝉、飞虱的试验,取得了较明显的效果。 Second season late rice by leafhoppers, planthopper hazards are common, there are individual production team, the damage caused by rice fields is very serious, resulting in rice lodging. In order to save labor, save medicine and economically effectively control leafhoppers, we made different degrees of concentration of dichlorvos leafhoppers on a double-crop field (cultivar Nongken 58) of Nongyin team at 3pm on October 14, 1975, The test of planthopper made more obvious effects.