The distribution of eggs of the second generation of cotton bollworm on the tom ato and its sampling technique.
Author of the article:Yu Jiang-Nan1,Yan Hai-Long1,Wang Deng-Yuan1,Wei Jian-Hua2,Chen Yan2
Author's Workplace:(Chang Ji Plant Protection Station, Chang Ji 831100, China)
Key Words:Helicoverpa armigera; egg distribution; tomato; sampling technique
Abstract:On the basis of the investigation and analysis, We found that the spa tial distribution pattern of eggs of the second generation of Helicoverpa armigera(Hübner) was negative binomial distribution in the tomato field, which belongs to an aggreg