摘要
杨黑点叶蜂是北方杨柳园林和人工林危害严重的食叶害虫,幼虫有群集性,虫口数量多,频发猖獗为害.采用有效积温法、期距法、经验性温度指标法、物候法等预测预报技术,在生产应用中有实际意义.
Pristiphra conjugata,whose larvae are gregarious,is a kind of serious defoliator in a mixed poplar-willow forest and plantation in north China,with large number of insect and rampant damage.This research uses method of occurrence stage,experimental temperature index and phenology,having a valuable significance of production and application.
出处
《高师理科学刊》
2010年第5期58-60,共3页
Journal of Science of Teachers＇College and University
基金
黑龙江省林业厅科学技术计划项目(2005)
关键词
杨黑点叶蜂
发生期
北方杨柳林
预测预报技术
Pristiphra conjugate
occurrence period
in a mixed poplar-willow forest in north
prediction technology
