赤眼蜂在不同生境植物上分布的初步研究

本文对湖北省9种赤眼蜂在不同生境植物上的分布作了调查分析。结果表明,湖北省9种赤眼蜂可寄生在21科25属25种植物的虫卵上,根据25种植物的生态特点,可划为农田型、沼泽型、林间型和广布型四类。属于农田型有玉米螟赤眼蜂(Trichogramma ostriniae)和广赤眼蜂(T.evanescens),林间型有舟蛾赤眼蜂(T.closterae)和风蝶赤眼蜂(T.seticini),沼泽型有稻螟赤眼蜂(T.japonicum),广布型有拟澳洲赤眼蜂(T.Confusum)、松毛虫赤眼上(T.dendrolimi)、毒蛾赤眼峰(T.ivelae)和粘虫赤眼蜂(T.1eucaniae)。

PRELIMINARY STUDIES ON THE DISTRIBUTION OF TRICHOGRAMMA ON DIFFERENT PLANT

ABSTRACT: The distribution of 9 species of Trichogramma on different habitats wasinvestigated from 1982 to 1985 in Hubei province. Relationships between Trichogrammaand plant habitats were analyed. From surveying species of pest eggs on 49 species ofplants it was discovered that there were 25 plants on which Trichogramma werescattered. They belonged to 21 families, 25 genera. Trichogramma japonicum, T.ostrinae, T. dendrolimi and T. confusun were distributed over 10, 12, 14 and 22 plants,respertively. Trichogramma were bassically devided into four types, i.e. field type,swamp type, forest type and wide-distribution type aocording to the characteristic ofplant habitats. T. ostrinae and T. evaneecens belonged to field type. T. closterae andT. sericini to forest type. T. japonicum to swamp type, and T. confusum, T. dendrolimi,T. ivelae, T. leucaninae to wide-distribution type.