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1977年从山东临沭县大蔡庄大队罹病的大黑鳃金龟(Holotrichia oblita Faldermann)蛴螬体内筛选出一株乳状菌的新菌系——鲁乳1号。此菌孢子囊较大(3.238×0.803微米),一端或两端具有折光性很强的伴孢体,单伴孢体大为0.78×0.57微米,双伴孢体较小,一端为0.66×0.57微米,另一端为0.54×0.43微米,芽孢为1.411×0.693微米;此菌对我国普发性金龟(虫甲)优势虫种大黑鳃金龟有较高的致病力。用喂食的方法生产菌剂已获成功。室内喂食试验致病率达65.6(38.0—100)％。田间每南用2.5万亿活芽孢时致病率为37.96(25.0—64.7)％,虫口减退率77.2(47.0—85.7)％,防治效果达68.6(43.0—83.0)％,芽孢能在土壤内长期存活,并扩散流行,是控制蛴螬危害的有效病原菌。
In 1977, a new strain of Lactobacillus Lumiusu 1 was screened from the grub of Holotrichia oblita Faldermann in the village of Dacaizhuang, Linshu County, Shandong Province. The bacterial sporocysts larger (3.238 × 0.803 microns), one end or both ends of the highly refractive complex with sporozoites, single consortium large 0.78 × 0.57 microns, double with sporozoites smaller, one end of 0.66 × 0.57 0.54 × 0.43 μm at the other end and 1.411 × 0.693 μm at spore. The fungus has high virulence to the dominant species of the giant black gills in China. Feeding method has been successful. The incidence of indoor feeding test was 65.6 (38.0-100)%. When 2.5 trillion live spores were used in the field, the disease incidence was 37.96 (25.0-64.7)%, the rate of population decline was 77.2 (47.0-85.7)%, and the control effect was 68.6 (43.0-83.0)%. Survival, and proliferation of epidemic, is an effective pathogen to control the 蛴 螬 hazards.