论文部分内容阅读
灰顶竹毒蛾(Pantana droa Swin-hol)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,仅桃源县兴隆街公社就有3万多亩竹林受害,严重者达1万余亩。据调查,虫口密度一般400—800条,最多达2000余条,造成局部成灾,为了摸清其发生规律和找出有效的防治措施,我们作了室内外的观察记载
Pantana droa Swin-hol is a Lepidoptera moth family, the staple food of bamboo leaves, with the characteristics of population density, sudden disaster, 1973, in our district Taoyuan County, Zhuyuan Brigade occurred for the first time, 1974 In Taoyuan, Changde, Hanshou and other places have occurred, only Taoyuan Xinglong Street commune has more than 30,000 acres of bamboo forest victims, in severe cases up to 1 million mu. According to the survey, the density of insects generally 400-800, up to more than 2000, causing local disaster, in order to find out the occurrence of the law and identify effective prevention and control measures, we made indoor and outdoor observation records