Biological characteristics of Lymantria xylina swinhoe in Dimocarpus longan Lour
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摘要: 木毒蛾是福建沿海防护林木麻黄的重要害虫,2003年以来,该虫成为厦门市龙眼果园的主要害虫.通过室内饲养和室外调查研究该虫在龙眼上的年生活史、发育历期、生活习性等,结果表明,龙眼木毒蛾在厦门1年发生1代,以滞育幼虫在卵壳内越冬;幼虫一般7龄,幼虫期36~51d.Abstract: Lymantria xylina Swinhoe is a major pest of casuarina in Fujian Coastal Protection Forest.It has also become the main pest of Dimocarpus longan Lour.in Xiamen since 2003.The life history,developmental periods and biological characteristics of Lymantria xylina Swinhoe are presented in this paper.The results of our study showed that the pest bred one generation per year in Xiamen,and winterized itself as diapause larvae.Generally,it has seven instars with a larval stage lasting 36 to 51 days.
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