一、序言 林木苗圃土壤中的金龟子幼虫食害根部,给苗木带来很大为害。过去使用有机氯系农药防治,后因残毒问题而被禁用,改用有机磷系农药为主,但因其残效期短,再次造成全国性为害,特别是大绿丽金龟的为害大量增加。 青木等从长野县的大条纹丽金龟中分离得到的 Beauveria tenella菌(以下略为 First, the preamble Forest moth nursery scarab larvae eat roots, to nursery stock great harm. In the past, the use of organochlorine pesticides to prevent and control, after the disabled because of the problem was disabled, instead of organophosphate pesticides based, but because of its short duration, once again caused nationwide damage, especially a large green beetle damage greatly increased. Aoki Beauveria tenella isolated from the big striped beetle of Nagano Prefecture (the following is a brief description