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在阿勒泰林区2015年对杨毒蛾的发生危害及发生规律进行系统的观察研究。采用标准地定时定点观察,现场采集相结合的方法进行虫态发育期和不同杨树的危害率调查。观察结果表明,杨毒蛾在阿勒泰地区1年发生1代,此虫发生期早、幼虫发育快、食量大、幼虫顺风迁移及周期性大发生等特点。近几年,在阿勒泰地区杨柳科树种猖獗成灾,尤其幼虫对杨树人工幼林、农田防护林、苗圃危害非常严重,短期内能将整个林木叶片吃光,目前杨毒蛾在阿勒泰林木危害发生面积达1300hm2。本文在阐明杨毒蛾发生危害、发生规律、生活习性等基础上,提出杨毒蛾的有效防控策略和建议提供了参考。
In the Altay forest area in 2015, the occurrence and the occurrence of the poisonous larvae were investigated systematically. Using standard fixed-point observation, on-site acquisition of a combination of methods for insect development stage and the risk of different poplar investigation. The observation results showed that the genus Lysomatopoda occurred in Altay area for one year. The larvae developed early, the larvae developed fast, the food intake was large, the larva migrated in the wind and occurred cyclically. In recent years, poplar trees in Altay area rampant disaster, especially larvae poplar artificial young forests, farmland shelterbelts, nurseries very serious short-term can eat the entire forest leaves, the current poisonous moths in Altay forest hazards area 1300hm2. Based on the elucidation of the occurrence, the occurrence and the habits of the poisonous larvae, this article provides some references for the effective prevention and control strategies and suggestions of the larvae.