摘要
落叶松球蚜是我国东北、西北、华北北部地区为害落叶松林的主要害虫之一,发生时致使受害树针叶发黄,危害严重时影响树木生长。本文通过对落叶松球蚜的风险分析,得到其风险评估值R=1.60,在我国属于中度危险的林业有害生物。
Adelges laricis Vallot is one of the main pests in Northeast China,Northwest China and north of North China,which is harmful to deciduous pine forest.It causes the tree′s needles to be yellow,and affects the growth of trees when the harm is serious.Through the risk analysis on Adelges laricis Vallot,the risk assessment value R=1.60,indicating Adelges laricis Vallot is a moderately dangerous forest pest in China.
作者
周建波
ZHOU Jian-bo(Saihanba Mechanized Forestry Centre in Hebei Province,Weichang Hebei 06846)
出处
《现代农业科技》
2018年第14期120-120,126,共2页
Modern Agricultural Science and Technology
关键词
落叶松球蚜
转主寄生
风险评估
Adelges laricis Vallot；heteroecism；risk assessment
