白桦尺蠖预测方法的探讨  

Forecast methods of Phigalia djakonvi Moltrecht

作　　者：王瑞红[1] 孟祥玉 滕国英 周景清 

机构地区：[1]国家林业局森林病虫害防治总站,辽宁沈阳110034 [2]内蒙古库都尔森工公司森林病虫害防治检疫站,内蒙古库都尔022164 [3]河北省孟滦国营林场管理局森林病虫害防治检疫站,河北围场068540

出　　处：《中国森林病虫》2002年第2期14-16,共3页Forest Pest and Disease

摘　　要：该文通过对白桦尺蠖PhigaliadjakonviMoltrecht的林间调查和室内饲养观察 ,测定了幼虫各龄期的头壳宽度、卵和幼虫的发育起点温度和有效积温、各龄幼虫食叶量、林分的危害程度和害虫发生数量的关系。The width of larvae's head capsules in all stadia, the initial developmental temperatures and the effective accumulated temperatures of eggs and larvae,the eating capacity of larvae as well as the relationship between damage degree of stands and occurrence of Phigalia djakonvi were determined after field investigation and breeding in lab, some valuable methods for the forecast of Phigalia djakonvi were provided

关 键 词：白桦尺蠖 预测预报 方法 森林虫害 

分 类 号：S763.7[农业科学—森林保护学] S763.41[农业科学—林学]