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生物复合病毒杀虫剂经紫外线照射及田间日光曝晒表明，加保护剂处理的对紫外线及日光的阻挡作用较为显著，其中保护剂维生素B2、活性炭、淀粉阻挡作用最为显著。因此，为了延长残效期和提高防治效果，在新型生物杀虫剂中加入一定的保护剂是必要的。同时指出，晴天使用生物复合病毒杀虫剂拟在下午4时后喷施为好。
Biological compound virus insecticides by ultraviolet radiation and field daylight exposure showed that the protective effect of the protective agent on the UV and solar light blocking effect is more significant, including protective agent vitamin B2, activated carbon, starch blocking the most significant. Therefore, in order to extend the residual period and improve the control effect, it is necessary to add some protective agent to the novel biocide. At the same time, he pointed out that it is better to use biologically complex virus pesticides in the sunny days after spraying at 4 pm.