1989年12月至次年2月,湖北省宜昌县狮子山柑桔场为了防治柑桔矢尖蚧,用乐果、甲拌磷等农药10倍液浸纸包于树干,外用薄膜包扎。共处理温州蜜柑成年树11248株,1990年3月发现用乐果包扎的8668株发生药害。被害部树皮由青变黑,坏死干裂,裂皮易脱落;受害树严重落叶,有的全部落光。随后,笔者 December 1989 to February of the following year, Yichang County, Hubei Province, citrus fruit field to observe the Citrus sinensis scales, with dimethoate, phorate pesticides 10 times immersed paper wrapped in the trunk, external film dressing. A total of 11248 adults were treated in Wenzhou Satsuma. In March 1990, 8668 strains of dimethoate were found to be injured. Damaged by the Ministry of the Ministry of bark dark green, necrotic chapped, split easy to fall off; victims of serious deciduous trees, and some of the falling light. Subsequently, the author