刚竹毒蛾虫情级的研究  

Damage degree of Pantana phyllostachysae

作　　者：陈德良 赵仁友 瞿巧文 

机构地区：[1]庆元县森林病虫防治检疫站,浙江庆元323800 [2]丽水市森林病虫防治站,浙江丽水323000

出　　处：《中国森林病虫》2006年第6期14-16,共3页Forest Pest and Disease

摘　　要：通过对刚竹毒蛾空间分布和各代食叶量调查及不同危害程度与毛竹产量关系分析，结合近20a测报和防治工作经验，提出了以20％食叶量为起始防治指标，以20％～50％，51％～70％。71％以上为预测轻、中、重3级指标。以10％食叶量为累进指标，进一步将虫情级分为10级。并对调查时间、调查方法进行综述。Survey of space distribution and the defoliation amount of Pantana phyllostachysae Chao were made. Also the relationship between the damage degree and production of Phyllostachys edulis was analyzed. As a result, the defoliation amount of Pantana phyllostachysae was proposed as an index for control. The index of slight damage was 20%-50% defoliation,51%-70% was moderate and 71%- 100 % was severe. The damage degree of Pantana phyllostachysae was divided into 10 grades by 10 % defoliation. And the survey time and methods were given.

关 键 词：刚竹毒蛾 测报 防治指标 食叶量 虫情级数 

分 类 号：S763.42[农业科学—森林保护学]