摘要
通过田间调查和统计分析，明确了柑桔黑刺粉虱种群的抽样单位以梢为最适；其种群呈聚集分析，方差分析表明在树冠不同部位的聚集强度无显著差异；在相同误差水平。
By means of field invstigation and statistic analysis, it was indicated that it was proper to sample Aleurocanthus spiniferus in the tip of citrus trees, on which the insect population presented aggregative distribution The difference of cluster intensity in different posi-tion of tree crown was not significant by variance analysis Under the same level of error, the increase of theoretical sampling number accompanied with the increase of average denity of the insect
出处
《贵州农业科学》
CAS
1996年第6期34-38,共5页
Guizhou Agricultural Sciences
关键词
黑刺粉虱
空间格局
抽样
柑桔类果树
害虫
Aleurocanthus spinferus
spatial distribution pattern
sampling
