笔者1984—1986年,连续3年20余点次,用Bt乳剂、“7216”、“82—6(1)—2”3种苏云金杆菌制剂处理绿豆1000公斤,防治绿豆象效果较好。 Bt乳剂(湖北农科院植保所提供)为褐色粘稠液体,含菌12O亿/ml。“7216”和“82— 6(1)—2”(均为湖北生防站提供)含菌100亿/克,细度100目,含水4％左右,灰白色粉剂。3种菌剂均是1984年产。供试绿豆处理前无虫蛀或虫蛀7—10％,发芽率79— I 1984-1986, for more than 20 consecutive years more than 3 times, with Bt emulsion, “7216”, “82-6 (1) -2” three Bacillus thuringiensis preparation of 1000 kg mung bean treatment, prevention and treatment of mung bean as better. Bt emulsion (Hubei Academy of Agricultural Sciences plant protection provided) as a brown viscous liquid containing bacteria 12O billion / ml. “7216” and “82-6 (1) -2” (all provided by Hubei Health Protection Station) contain 10 billion g / g, 100 mesh fineness and about 4% water content. Three kinds of bacteria are produced in 1984. For mung bean test before treatment without moth or moth-eaten 7-10%, germination rate 79-