Species Composition and Seasonal Distribution of the Endoparasitoids on Acronicta rumicis (Lepidoptera, Noctuidae)

Journal of Ecology and Field Biology Pub Date : 2006-02-01 DOI:10.5141/JEFB.2006.29.1.055

Young-Ho Cho, Oh-Seok Kwon, S. Nam

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引用次数: 3

Abstract

Forty six individuals out of 200 Acronicta rumicis larva were parasitized (23 %) in 2000, 14 individuals out of 60 (23.33 %) in 2001, and 14 individuals out of 62 (22.58 %) in 2002. The mean parasitism rate was . The parasitism rate was 36.36 % in May and 52.78 % in October, 2000, 75 % and 50% in May and October 2001, 71.4% and 47.37% in May and October 2002 and it was much higher than other months. Parasitism was occurred from May to October 2000, but it was not in June and August 2001 and June 2002. There was no difference in the monthly mean parasitism rate, but the rate was the highest in May and October. The parasitoid of the larva of A. rumicis was the highest by 77.02% of parasitic wasps, and 13.51% of parasitic flies. It was found that multiparasitism was 4.05 % and hyperparasitism was 5.41 %. In case of parasitic wasps whose parasitism rate is the highest, the rate of Braconidae and Ichneumonidae was 70.18 % and 29.82 % respectively. That is, the former has much higher parasitism rate. The parasitism rate of the larva of A. rumicis was found that Microplitis sp. is , Glyptapanteles liparidis , and Diadegma sp. respectively.

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瘤胃安克夏(鳞翅目，夜蛾科)内寄生蜂的种类组成及季节分布

2000年每200只瘤胃安克夏幼虫被寄生46只(23%)，2001年每60只被寄生14只(23.33%)，2002年每62只被寄生14只(22.58%)。平均寄生率为。2000年5月和2001年5月的寄生率分别为36.36%和52.78%，2001年5月和10月的寄生率分别为75%和50%，2002年5月和10月的寄生率分别为71.4%和47.37%，明显高于其他月份。2001年6月、8月和2002年6月均未发生寄生。月平均寄生率无显著差异，但以5月和10月最高。瘤胃蠓幼虫的寄生性最高，占寄生蜂的77.02%，占寄生蝇的13.51%。多重寄生率为4.05%，高寄生率为5.41%。寄生率最高的寄生蜂中，小蜂科和姬蜂科分别占70.18%和29.82%。即前者的寄生率要高得多。结果表明，瘤胃蠓幼虫的寄生率分别为Microplitis sp.、Glyptapanteles liparidis和Diadegma sp.。

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Journal of Ecology and Field Biology

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