捕食性螨Amblyseius andersoni Chant(Acari:Phytoseidae)在不同苹果品种上的分布

C. Duso, M. Pasini
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引用次数: 26

摘要

在一个实验果园中,研究了不同苹果品种对安氏安氏安氏安氏安家鱼分布的影响,在该果园中,几乎没有四趾虫,并且毛藻达到低至中等种群。对7个苹果赤霉病抗性品种的叶片形态进行了比较。将每个品种嫁接到三种不同的砧木上,以提高活力。通过监测捕食者在基部和顶端叶片上的密度,也研究了A.andersoni的植物内分布。在第一年,A.andersoni对不同品种的定殖表现出明确的模式,有时与毛藻Aculus schlechtendali的丰度有关。在第二个试验季节,毛藻达到了可忽略的水平,栽培品种对安氏藻丰度的影响不太清楚。Florina和纽约18 491个品种在这两个年份都被相对较高的植物毒素数量定殖,而TSR29T219和普里西拉在至少一个季节表现出较低的种群数量。在其余品种上观察到的结果是中等或不确定的。讨论了叶片的青春期对植物类毒素定殖的作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Distribution of the predatory mite Amblyseius andersoni Chant (Acari: Phytoseiidae) on different apple cultivars

The effect of apple cultivar on the distribution of Amblyseius andersoni was studied in an experimental orchard where tetranychids were virtually absent and eriophyids reached low to moderate populations. Seven apple scab-resistant cultivars, showing some differences in their leaf morphology, were compared. Each cultivar was grafted onto three different rootstocks inducing increasing vigor. The intraplant distribution of A. andersoni was also studied by monitoring predator densities on basal and apical leaves. In the first year, the colonization of different cultivars by A. andersoni showed definite patterns, sometimes associated with the abundance of the eriophyid Aculus schlechtendali. In the second experimental season, eriophyids reached negligible levels and the effect of cultivar on A. andersoni abundance was less clear. Florina and N.Y. 18 491 cultivars were colonized in both years by relatively high phytoseiid numbers, while TSR 29T219 and Priscilla showed low populations in at least one season. The results observed on the remaining cultivars were intermediate or indefinite. The role of leaf pubescence on phytoseiid colonization is discussed.

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