摘要
采用聚集度指标法测得青杨虎天牛幼虫XylotrechusrusticusL.在小青杨PopuluspseudosimoniKitag主干上垂直分布格局为聚集分布,严重危害部位为1.66±1.37m,为虫情调查和化学防治提供了科学依据。
The vertical distribution of Xylotrechus rusticus larvae on Populus pseudosimonii Kitag is aggregated dispersion.The serious damaged parts are at 1.66±1.37m of the trunks.
出处
《森林病虫通讯》
北大核心
1998年第2期25-26,共2页
Forest Pest and Disease
关键词
青杨虎天牛
垂直分布
聚集度
指标
Xylotrechus rusticus, vertical distribution, aggregated degree, index