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桃斑蛾Illiberis nigra Leech又名梅薰蛾,主要为害杏、李、桃等果树。在晋中地区一年发生一代,以幼龄幼虫在剪锯口缝隙中(占70.4%)、皮下(占14.8%)、树杈及贴叶下(各占7.4%)结茧越冬。来年4月上旬出蛰,白天为害花芽,遇不良气候或夜间返回原越冬场所隐蔽。老龄幼虫白天下树隐蔽,19时以后开始上树为害,21时至翌晨4时达高峰。5月中旬老熟幼虫开始在树干、根基部的土、石、砖块等下结茧化蛹。6月上旬成虫开始羽化,羽化时间多在半夜。成虫羽化时将蛹壳带出茧外1/3
Peach moth Illiberis nigra Leech, also known as plum moths, mainly for apricot, plum, peach and other fruit trees. One generation a year occurred in the Jinzhong area. The young larvae cocooned overwintering in the crevices of scissors (70.4%), subcutaneously (14.8%), and under tree branches and leaves (7.4% each). In early April next year, sting out, damaging flower buds during the day, in bad weather or return to the original winter night hidden places. The aged larvae conceal under the tree during the day and start damaging trees after 19:00 and reach the peak at 4:00 the next morning. In mid-May, mature larvae begin to cocoon their pupals under tree trunks, roots and soil, stones and bricks. In early June, adults begin to emerge and emerge mostly in the middle of the night. Adult pupal shell emerge cocoon outer 1/3