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为检测建阳株菜粉蝶颗粒体病毒(PrGvJ1-18)毒力,在防治十字花科蔬菜菜青虫上,引用异源粉蝶颗粒体病毒株进行生物测定比较。单用或与细菌农药8010菌剂、化学农药混用结果表明:供试病毒株中,以PrGvJ1-18毒力最强,武汉株与福州株其次,英国株最差。不同病毒株混用效果,并不优于单独使用。但单用病毒治虫,见效慢;与8010菌剂或化学农药混用,则能扬长避短,防效快、持效期长且有增效作用。直接使用感染菜粉蝶颗粒体病毒的虫尸捣液,具有方法简便、保存容易、效果好、易为群众接受等优点。
To detect the virulence of the powdery mildew virus (PrGvJ1-18) in Jianyang, the bioassay was conducted on the control of the cruciferous vegetables Pieris rapae. The results showed that the virulence of PrGvJ1-18 was the strongest among the tested virus strains, followed by that of Wuhan strain and Fuzhou strain, followed by that of UK strain. Mixed with different strains of the effect, not better than used alone. But the virus alone worm, effective slow; mixed with 8010 agents or chemical pesticides, you can avoid weaknesses, quick-acting, long-lasting and synergistic effect. The direct use of infected cabbage butterfly virus infestation liquid, with the method is simple, easy to save, the effect is good, easy for the masses to accept the advantages.