病毒制剂的毒力,只有用敏感昆虫作生物测定的方法来测定才比较可靠。 Dulmagc(1971)用甘兰尺蠖核型多角体作病毒材料,创造了丙酮——乳糖沉析法制备标准样品;并给这种样品规定了毒力单位,但未能得到国际公认。到目前为止,病毒杀虫剂的产品,通常只标+明活性成份的比例和多角体的数量。近年来,我国昆虫病毒的研究和应用有了较大发展,在病毒生物活性测定方面已有许多报道。我们在日本赤松毛虫质型多角体病毒的增殖与防治应用中,采用 The virulence of a virus preparation can only be measured reliably using sensitive insects as a bioassay. Dulmagc (1971) created a standard sample of acetone-lactose precipitation using a kynar nuclear polyhedrin as a viral material, and gave the sample a virulence unit that was not internationally recognized. To date, the products of viral pesticides, usually only labeled with the proportion of active ingredients and the number of polyhedra. In recent years, the research and application of insect viruses in our country have been greatly developed, and many reports have been reported on the determination of the biological activity of the virus. We used in the Japanese Red Dendrolimus polyhedrosis virus proliferation and control applications