【摘要】 茶毛虫产卵对茶丛生境有明显的选择习性,卵块主要分布在茶丛两侧,两侧区1代卵块分布数量明显高于2代。着卵部位调查表明,叶背、叶面及枝条着卵量分别占75.5％,16.3％及8.2％。茶丛高度与着卵高度有明显相关关系,确定20～60cm和61～100cm两组茶丛高度与着卵高度直线回归方程。20～60cm,61～100cm,101～140cm着卵茶丛高度分别占调查株的29.3％,57.7％及13％。采用David and Moore(1954)和Lloyd(1967)两种方法,分别测定了11块茶园1,2代茶毛虫卵块空间分布图式。分析结果表明,多数茶园卵块呈均匀分布,少数田块为聚集分布。更多还原

【Abstract】 The investigation on the distribution habits of the egg masses of the tea caterpillar in the tea cumps were conducted in 1984, 1985 and1986. The results show that the egg masses distribute mostly on the bilateral sides of the tea clumps, the eggs of the 1st generation were more than 2nd in the bilateral side. Female insects usually lay their egg masses under the surface of the leaves, where the quantity of egg masses makes up nearly 75.5% of the total, while the eggs on the surface of the leaves and on the branches are 16.3% and 8.2% respectively. The height of the laid egg masses is obviously related to the height of the tea clumps, which is between 20～60cm or 61～100cm. The heights of 20～60cm, 61～100cm and 101～140cm in the egg mass bearing tea clumps take up 29.3%, 27.7% and 13% of total tea clumps investigated. The spatial distribution patterns of the egg masses were measured based on the models by David and Moore (1954) and Lloyd (1967). The results show that the majority of the tea gardens belong to contagious distribution, while only a few tea gardens belong to aggregated distribution.更多还原