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灰顶竹毒蛾属鳞翅目毒蛾科。主食楠竹叶,具有虫口密度大,突发成灾的特点。1973年在我区桃源县竹园大队首次发生,1974年在桃源、常德、汉寿等地相继发生,仅桃源兴隆街公社就有3万多亩竹林受害,其中受害严重的达1万多亩。虫口密度一般400—800条,最多达2,000余条,造成局部灾害。为了摸清它的发生规律与有效防治方法,我们做了室内外的观察记载与防治试验。现将结果简介如下:
Ash top bamboo poison moth Lepidoptera moths. Bamboo leaf staple food, with a population density, sudden disaster characteristics. In 1973, Taoyuan County Zhuyuan Brigade took place for the first time in 1974, and Taoyuan, Changde and Hanshou took place in succession in 1974. Only 30000 mu of bamboo forests were damaged in the commune of Xinglong Street, Taoyuan alone, of which over 10,000 mu . Insect population density 400-800, up to more than 2,000, resulting in local disasters. In order to find out its occurrence and effective prevention and control methods, we have done indoor and outdoor observation records and prevention and control tests. Now the results are as follows: