朱砂叶螨、侧杂食线螨在茄子、辣椒、豇豆上的空间分布型

SPATIAL PATTERN OF TETRANYCHUS CINNA-BARINUS AND POLYPHAGOTARSONEMUS LATUSON EGGPLANT, PEPPER AND ASPARAGUS BEAN

朱砂叶螨、侧杂食线螨在茄子、辣椒、豇豆三种蔬菜上的空间分布里聚集型分布,这是由它们的生物学特性造成的.朱砂叶螨在茄子和辣椒不同叶层上的虫口密度是中部>下部>上部;在豇豆上则上、中、下部的密度相差不大.侧杂食线螨在茄子和豇豆不同叶层上的虫口密度是中部>上部>下部,在辣椒上则是上部>中部>下部.

The results of investigation indicated the spatial pattern of Tetranychus cinnabarinus and Poly-phagotarsonemus latus on eggplant, pepper and asparagus bean were mainly aggregate because of their biological characteristics. The population density of Tetranychus cinnabarinus was the middle > the foot > the top on the foliar layer of eggplant and pepper, and well-distributed on asparagus bean. Polyphagotarsonemus latus was the middle > the top > the foot on eggplant and asparagus bean, and the top > the middle > the foot on pepper. The study has provided the scientific basis for fur, ther knowing the biological characteristics of these insects and determining the sampling method analysing the quantity growing and declining rule and controlling the pests.