The spatial distribution pattern and sampling method of the larvae of Leis axyridis in tobacco fields.
Author of the article:REN Guang-Wei1,SHEN Wan-Peng2,MA Jian-Guang2
Author's Workplace:1.(Tobacco Research Institute of Chinese Academy of Agricultural Sciences,Qingzhou,S
handong Province 262500,China),2.(Tobacco Research Institute of Guizhou Chiyu Group,Bijie,GuizhouProvince 551700,China).
Key Words:tobacco fields;Leis axyridis;larva;spatial distribution;sampling method
Abstract:The spatial distribution pattern of the larvae of Leis axyridis (Pallas) was of the aggregate pattern and fitted with the negative binomial distribution.The aggregation was caused by the enviromental factors.The sample size requirements at fixed pr