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近年来,在我县柑桔园夏秋高温季节使用杀虫双防治潜叶蛾时,因喷药浓度过高,多次使柑桔叶片、果实产生药害。据笔者调查,榜头镇南溪柑桔场于6月份在椪柑、温州蜜柑夏梢期使用25％杀虫双300倍液防治潜叶蛾,喷药时温度高达32℃,喷后6天,初始叶片、果实出现淡黄色、橙黄色水渍状斑点;药害严重的叶片隆起变形,叶尖组织坏死,果实则在药液聚集处出现黄褐色斑点、斑块。一个月后,部分
In recent years, in my county citrus orchard summer and autumn high temperature season insecticidal and dual control of leaf moths, because of the high concentration of the spray, the citrus leaves many times, fruit injury. According to the author’s investigation, the top town of Nanxi citrus field in June in Citrus, Satsuma Wenzhou summer 25% insecticidal double 300 times the prevention and treatment of leaf-moth, spraying temperature up to 32 ℃, 6 days after spraying, The initial leaves, the fruit appears yellowish, yellowish orange-like water stain-like spots; severe injury leaf uplift deformation, tip tissue necrosis, the fruit is in the liquid accumulation of spots appear brown spots, plaque. A month later, part