苹果花后即幼果期,喷敌敌畏、敌百虫、氧化乐果等有机磷农药,能使果树产生药害一引起幼果严重脱落。对此过去有材料报导,而因喷布水胺硫磷农药引起的落果,却未见材料报导。 我县用的水胺硫磷系山东陵县农药厂,根据西德拜耳公司专利研制成功的一种新型杀虫杀螨剂,为40 %乳油。今 Apple flowers after the young fruit, spray dichlorvos, trichlorfon, omethoate and other organophosphorus pesticides, can cause a fruit injury caused by a serious fruit shed off. In the past, there were reports of materials that were not reported in the literature because of the fruit drop caused by the spraying of pesticide pesticides. My county with arachidothion Shandong Lingxian Pesticide Factory, according to the West Bayer company patents successfully developed a new type of insecticide miticide, 40% EC. this