关键词: 苏云金杆菌血清14型, 球形芽孢杆菌, 灭蚊幼

Abstract: 67.23 km² are experiment of controlling mosquito larvae with microbial mixture of Bacillus thuringiensi serotype H-14 (B. T. H-14) and Bacillus sphaericas 10 (B. S-10) agent has carried out in Ningbo city, Zhejia-ng province during May to September 1988. The liquid formulation of mixture agent was produeed by Department of microbiology at YangZhou Institute of Agriculture. The microbial solution concentration with respect to the volume of water applied in only mosquito larvae breeding place; water container, stream, cesspools, ditches, and sewerage etc, must pay close attention.The result showed that the mean positive rate of mosquito larvae was 2.04 percent in 1988 after disposing the agent, it was lower than that of 1987. The result and benefit were discassed between using the microbial mixture and the chemical insecticide.