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松针毒蛾[Ocneria monacha L]是落叶松害虫,常形成严重为害。笔者于1974—1981年,在牡丹江林区,对松针毒蛾六种寄生蜂进行了观察,并做好防治试验。结果如下。二、发生情况松针毒蛾六种寄生蜂,除两色瘦姬蜂一年发生两代外,其余五种一年发生一代。幼虫期寄生蜂,于七月初开始羽化,7月9日至18日为盛期。它们发生的顺序是:两色瘦姬蜂→松毛虫黑基瘤姬蜂→凹眼姬蜂。7月中旬至8月中旬,在林内最为活跃,两色瘦姬蜂数量较多。蛹期寄生蜂,于7月中旬开始羽化,7月25日达到盛期。发生的顺序是:黄足黑瘤姬蜂→脊腿匙宗瘤姬蜂→瘦姬蜂。8月中旬在林内发生的数量最多,超过幼虫期一倍以上,
Oconeria monacha L is a larch pest that often causes serious damage. The author in 1974-1981, in the Mudanjiang forest area, parasitic pine needle poison moth were observed, and prevention and control tests. The result is as follows. Second, the occurrence of pine needles moth six kinds of parasitic wasps, in addition to two-color lepidoptera two generations a year, the other five species occur one generation a year. Larvae parasitic wasps, began to emerge in early July, July 9 to 18 for the peak. The order in which they occur is: two-color lepidoptera → pine-tree black-bodied bee | From mid-July to mid-August, the most active in the forest, a large number of two-color thin wasps. Parasitic parasitoids at pupal stage begin to emerge in mid-July and reach its peak on July 25. Occurred in the order is: yellow foot aneurysp Occurred in mid-August most in the forest, more than double the larval period,