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舟蛾赤眼蜂 Trichogramma closterae Pang et Chen是淮北地区主要蜂种之一,自然越冬群落较大,也是春季赤眼蜂的重要来源。为了用于防治农林害虫,我们对其越冬情况和利用价值进行了一些调查研究。 一、越冬观察 近年来,我们在淮北地区,对舟蛾赤眼蜂的自然越冬,进行了以下几方面的观察。 1.越冬寄主 在淮北地区,柳毒蛾Leucoma candida Staudinger卵是舟蛾赤眼蜂的一种主要越冬寄主。据观察,柳毒蛾一年发生2代,第一代成虫6月上旬出现,上旬末至中旬盛发,下旬进入末期;第二代8月下旬开始发蛾,
Trichogramma closterae Pang et Chen Trichogramma closterae Pang et Chen is one of the major bee species in Huaibei area. It naturally overwinter communities and is also an important source of Trichogramma in spring. In order to control pests in agriculture and forestry, we conducted some investigations on their overwintering conditions and their utilization value. First, wintering observation In recent years, we Huaibei area, the natural moth Trichogramma overwinter, conducted the following observations. Overwintering host In the area of Huaibei, Leucoma candida Staudinger eggs are the main wintering hosts of Trichogramma. It is observed that the venom moth occurs 2 generations a year, the first generation of adults appeared in early June, early mid-to late mid-Shengfa late late into the second generation in late August hair moth,