摘要
选用在我国分布较广、出现频率较高的４个血清型中的６株供试菌株，以玉米螟为毒力指示昆虫，进行了毒为指示昆虫与棉铃虫、粘虫和黄地老虎的毒力相关性测定。结果显示，设定各供试菌株对玉米螟的毒力指数为１，那么各供试菌株对棉铃虫的相对毒力指数为０．６４７±０．０７４，对粘虫的相对毒力指数为０．２６８±０．０７，对黄地老虎的相对毒力指数为０．１４５±０．０３１。４种供试昆虫对各种供试菌株的相对敏感性顺序为玉米螟＞棉铃虫＞粘虫＞黄地老虎。
The toxicities of six strains of Bacillus thuringiensis (belonging to four serotypes) to Ostrinia furnacalis (toxic indicator insect) and heliothis armigera H bner, Mythimna separata Walker and Euxoa segetum Schifferm ller were tested and compared, and the correlation between the toxic indicator insect and the other three kinds of insect was also determined. Suppose the toxic index of the tested strains to O. furnacalis is 0. The toxic indices to H. Armigera, M. separata and E. segetum are 0. 647±0. 074, 0. 268±0. 070 and 0. 145±0. 031, respectively. So the sequence of B. thuringiensis is O. furnacalis>H. armigera>M. separata>E. segtum.
出处
《华北农学报》
CSCD
北大核心
1995年第2期91-94,共4页
Acta Agriculturae Boreali-Sinica
基金
国家"八.五"科技攻关项目
关键词
苏云金杆菌
玉米暝
棉铃虫
粘虫
毒力指示
Bacillus thuringiensis
Ostrinia furnacalis
Heliothis armigera
Mythimna separata
Euxoa segetum
Toxic indicator insect
