期刊论文

PRIMARY STUDIES OF GRUB DEMAGED PASTUREIN NANSHAN PASTURE FARM

中文

湖南农业大学学报(自然科学版)

1007-1032

1995

05

489-493

10.13331/j.cnki.jhau.1995.05.017

湖南省科委资助课题；

本校为第一机构

对城步南山牧场牧草地下害虫金龟子的系统调查和灯下诱集可知，有４种金龟子危害牧草比较严重，它们是鲜黄鳃金龟、小黄鳃金龟、异丽金龟和斜矛丽的金龟。研究记载了幼虫（蛴螬）在土层的垂直分布，成虫的发生期和高峰。从自然罹病的鲜黄腮金龟的幼虫虫体上分离得一株卵孢僵菌（编号Ｂ．ｔｅ３）。用该菌孢子液在室内对蛴螬作活虫感染试验，３０ｄ内感染率为６４．６％～９２．１％；野外草地用Ｂ．ｔｅ３菌剂拌少量细土撒于地表，２０ｄ内感染率达７０％以上。

Developmental period, vertical distribution in the pasture land of the grub,thenumbers of Metabolus tumidfrons,M.flavescens,Anomala sp.and Callistethus plagiicolliswas studied in the Nanshan Pasture Farm,Chengbu county.In the test of biological control,a strain of Beauveria tenella 3(B.te 3) was selected from the grub Metabolus tumidifronsFairmaire,and the infection experiments for living grubs with the B.te 3 in the labortory andon the pasture land were experimented.The results showed that the spore solution of B.te 3was used to infect the liv...