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为提高黄地老虎颗粒体病毒活体的增殖量,满足防虫需要,必须弄清温度对黄地老虎幼虫发病的影响,找出病毒增殖的最适温区.1979年,我们就此进行了研究.试验在温箱内分4次进行.第一次试验温度为15、20、25和30℃,每处理用第一代一、二龄幼虫40头 两个重复,6月8日接毒;第二试验温度为20、25、30和35℃,每处理用第一代三龄幼虫100头,五个重复,6月19日接毒;第三次试验温度为24、25、
In order to improve the proliferation of yellow tiger granulovirus and to meet the need of pest control, we must understand the effect of temperature on the incidence of yellow tiger larvae and find out the optimal temperature for virus proliferation. In the thermostat were divided into 4 times.The first test temperature was 15, 20, 25 and 30 ℃, each treatment with first-generation and second-instar larvae 40 two repeats, June 8 poisoning; second The test temperatures were 20, 25, 30 and 35 ℃, with 100 first-instar larvae of the first generation for each treatment, with five replicates and poisoning on June 19. The third test temperature was 24, 25,