1984年秋在北卡罗来纳州Sampson林区的蚊虫孳生地用苏云金杆菌以色列变种的Bactimos~R浮球制剂进行了一次现场试验,以评价其防制库蚊幼虫的效果。实验在当地已开伐林区的水淹洼地或废弃水沟中进行。积水呈圆形或椭圆形,试验当天的水深为20至40cm。实验池每100ft~2(9.29m~2)水面放一个Bactimos~R浮球(内含10%苏云金杆菌 In the autumn of 1984, a mosquito breeding ground in the Sampson forest area of ​​North Carolina conducted a field trial using bacillus thuringiensis baculovirus Agrobacterium-R float preparation to evaluate its efficacy against Culex. The experiment was carried out in the flooded depressions or waste ditches where the forest area has been opened. Hydrocephalus was round or oval, the day of the test water depth of 20 to 40cm. A Bactimos ~ R float (containing 10% Bacillus thuringiensis per 100ft ~ 2 (9.29m ~ 2)