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菜粉蝶是十字花科蔬菜的大害虫。本文系1978—1982年涉及21省、市、自治区,野外采集、室内饲养其卵、幼虫、蛹共达193,000以上的寄生性天敌调查结果。 调查中共得12种原寄生性天敌,它们是:广赤眼蜂(Trichogramma evanescens)、拟澳洲赤眼蜂(T.confusum)、菜粉蝶绒茧蜂(Apanteles glomeratus)、微红绒茧蜂(A.rubecula)、镶颚姬蜂(Hyposotersp.)、蝶蛹金小峰(Pteromalus puparum)、广大腿小蜂(Brachymeria lasus)、粉蝶大腿小蜂(B.femo-rata)、舞毒蛾黑瘤姬蜂(Coccygomimus disparis)、家蚕追寄蝇(Exorista sorbillans)、毛虫追寄蝇(E.amoena)以及常怯寄蝇(Phryxe vulgaris)。卵寄生率0-1.70%:幼虫害生率0-64.5%;蛹寄生率0—97.00％。在杭州,5、6月间平均蛹寄生率分别为61.45％和63.38％,越冬代蛹寄生率平均 56.01-60.62％。 根据调查结果,初步讨论了当前各地区保护、利用的重点对象,建议考虑从国外引进适当的赤眼蜂,并对如何开展天敌调查工作提出了看法。
Cabbage butterfly cruciferous vegetables is a large pest. In this paper, from 1978 to 1982 involving 21 provinces, municipalities and autonomous regions, field collection, indoor feeding their eggs, larvae, pupa total of more than 193,000 parasitic natural enemies of the survey results. A total of 12 species of parasitic natural enemies were obtained from the survey. They are: Trichogramma evanescens, T. confusum, Apanteles glomeratus, . Juubecula, Hyposotersp., Pteromalus puparum, Brachymeria lasus, B. femo-rata, Gypsy moth Bombyx mori Coccygomimus disparis, Exorista sorbillans, E.amoena and Phryxe vulgaris. Oviposition rate 0-1.70%: 0-64.5% larvae pest rate; 0-97.00% pupae parasitism. In Hangzhou, the average pupal parasitism rates in May and June were 61.45% and 63.38%, respectively, and the average parasitic rates of overwintering pupal were 56.01-60.62%. According to the survey results, the key targets of protection and utilization in various regions are preliminarily discussed, and it is suggested to consider the appropriate introduction of Trichogramma from abroad and to put forward some opinions on how to carry out the investigation of natural enemies.