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榆树金花虫(榆兰金花虫、榆黄金花虫)在我竹普遍发生,为害严重。我们用白僵菌进行防治试验取得一定效果,现报导如下: 试验方法:将榆树金花虫的幼虫与发生僵病的家蚕一起饲养在培养皿中或直接用白僵菌接种于金花虫体上。在气温24—30℃,相对湿度80～90％,待金花虫幼虫体上长出菌丝发白僵化,而后将金花虫的僵尸磨研,按1:1000倍稀释成水溶液(20斤清水加入人工培养的金花虫白
Elm golden flower insects (elm gold flower insects, elm gold flower insects) in my bamboo widespread, serious damage. We used Beauveria bassiana prevention and control test has achieved some results are reported as follows: Test methods: the elm gold flower larvae and the incidence of stiff silkworms with petri dishes or directly inoculated with Beauveria bassiana on. In the temperature of 24-30 ℃, relative humidity of 80 ~ 90%, to be golden ginseng larvae grow mycelium white and rigid, and then the gold flower worm zombie grind, diluted 1: 1000 into an aqueous solution (20 pounds Water to join the artificial cultivation of golden pest white