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PrGV“京农801株”,在24～26℃条件下,对4龄菜粉蝶幼虫的LC50为10~(3·57)颗粒体/毫升。颗粒体具整体抗原性,凝集反应出现肉眼可见的细小颗粒沉淀。试验表明:京农801株与毒力较低的分离株京农802株(LC50为10~(4·92)颗粒体/毫升)属同一血清型。血清型相同而毒力不同的现象颇似苏云金杆菌。PrGV与NPV间无交叉抗原性。颗粒体对高温有一定耐受力。
PrGV “Jingong 801”, LC50 of 10-3.77 granules / ml to 4-instar larvae of Apis melliferala at 24-26 ℃. Particles with the overall antigenicity, agglutination reaction appears visible small particles precipitation. The results showed that Beijing Jingong 801 strain belonged to the same serotype with 802 strains of Jingnong (LC50: 10 ~ (4.92) particles / ml) with lower virulence. The same serotypes but different virulence phenomena like Bacillus thuringiensis. No cross-resistance between PrGV and NPV. Particles have some tolerance to high temperatures.