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明确当地赤眼蜂的种类,并掌握其消长规律,是有关赤眼蜂利用的一项基础性工作。为了弄清这方面情况,近年来我们进行了大量的调查,初步结果如下。
A clear definition of the species of Trichogramma and its laws of growth and decline is a basic work on the use of Trichogramma. In order to understand this situation, we conducted a large number of investigations in recent years. The preliminary results are as follows.