关键词: 绿盲蝽, 越冬卵, 酿酒葡萄, 空间分布型, 抽样技术

Abstract: This paper used the frequency distribution, six aggregation indexes, Taylor power rule and Iwaos regression equation to analyze the spatial distribution pattern of the overwintering eggs of Apolygus lucorum in the vineyard. In addition, the aggregation reason of the overwintering eggs of Apolygus lucorum was analyzed and the theoretical sampling number was calculated. The results showed that: the spatial distribution pattern of the overwintering eggs of Apolygus lucorum in the  vineyard was aggregation distribution, and the higher the density of overwintering eggs, the more aggregation the distribution. Using the Iwao regression equation and Taylor power rule test, it could be found that the basic component of the distribution of Apolygus lucorum overwintering eggs  was the individual group, which attracted each other, and its aggregation degree had a great relationship with the worm density. The linear regression equation of mean aggregation number (λ) and average density (x) was λ = 0.931x-0.184 1(r=0.940 5). Under different densities, the mean aggregation number (λ) was less than 2, which indicated that the worm aggregation of the overwintering eggs of Apolygus lucorum was mainly caused by the effect of environment. Combined with the field investigation, the environmental factors such as the growth of grapevines, the density of winter buds scales, and the worm density may be the reasons for the aggregation and distribution of the overwintering eggs of Apolygus lucorum. The Iwao theoretical sampling number model was established by using the spatial distribution parameters of the overwintering eggs of Apolygus lucorum, which could determine the theoretical sampling number of the overwintering eggs of Apolygus lucorum under different worm density, and provided a theoretical basis for the accurate prediction of the density of the overwintering eggs of Apolygus lucorum in the vineyard in the future. The results not only enriched the spatial distribution pattern and sampling technology of the overwintering eggs of Apolygus lucorum on wine grape, but also provided a reference for the prediction and control of Apolygus lucorum in early spring wine vineyard.

Key words: Apolygus lucorum, overwintering eggs, wine grape, spatial distribution pattern, sampling technique