春季烟蚜有翅蚜空间分布及迁入量估计的初步研究

Density Estimation and Space Pattern of the Immigrating Alatae,Myzus persicae ,into Tabacco Field in Spring

本文通过对春季烟田烟蚜有翅蚜的抽样调查，研究有翅蚜的空间分布并进行迁人量估计。采用频次分布方法进行有翅蚜空间分布型测定，拟合结果既符合泊松分布又符合负二项分布；通过计算有翅蚜在不同叶位上的概率分布，结果表明，有翅蚓适入后大部分集中于烟株上部；通过定期调查烟株有翅蚜数量，并采用定积分中的抛物线法近似计算有翅蚜迁入总量，结果表明，有翅蚜迁入量约为４７９头／百株。

Chen Zepeng(Guangdong Tobacco Corporation)Abetract The grean peach ahpid(Myzus persicae Sulzer)was one of the most serious pest insecton tabacco,In spring the alatae immigrated to tabacco plants from the adjacent cruciferous vegeta-mes,The density of the alatae and its space distribution affected on the population dynamics of theaphid in the tabacco field.By the samples from the tabacco field,its space pattern could be fittedto poisson distribution and the negative bionomial distribution.The aphid adults mainly stayed atthe top leaves of tabacco plants。The density of the alatae was about 479 individuals per hundredplants.