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弗雷生虫霉菌[Entomophthora fresenii(Nowak.)Gustafs]可侵染很多种类的蚜虫,是一种很常见的蚜虫病原真菌。近年来,作者在天津地区的大白菜上采集到大量被E.fresenii寄生死亡的菜缢管蚜[Rhopalosiphum pseudobrassicae (Davis)],在研究病原菌生物学特性的
Entomophthora fresenii (Nowak.) Gustafs is a very common aphid-causing fungus that infects many species of aphids. In recent years, the authors collected a large amount of Rhopalosiphum pseudobrassicae (Davis) parasitized by E.fresenii on Chinese cabbage in Tianjin. In the study of the biological characteristics of pathogenic bacteria