小绿叶蝉若虫在茶园中空间分布型的研究

STUDIES ON THE SPATIAL PATTERNS OF NYMPHAE OF Empoasca flavescens (Fabricius)IN A TEA PLANTATION

应用分层抽样法,查明小绿叶蝉若虫在茶园中的空间分布型。结果表明,该若虫在4种不同虫口密度的茶园中,均呈负二项分布,且在茶园中个体分布很不均匀,个体间相互吸引,分布的基本成份是个体群。

Sampling method was used to analyze the spatial pattern of larvae of flaxaescens(Fabricius)in tea field .The results showed that the distribution patterns of nymphae belong to an aggregated distribution pattern. The distribution of in dividuals in tea field is not even,individuals attract each other ,and basic composition of the distribution is a group of individuals.