关键词: 黑条矮缩病, 枯草芽孢杆菌, 吡蚜酮

Abstract: In this paper, the chemical control techniques of black stripe dwarf disease was studied, by taking the investigation, observation and test in Rongshui county. The test set up 3 treatments （no water, shallow water and deep water）, each treatment area is 67 m2. The control agents are 40 g 200 M/g bacillus subtilis and 24 g 25% Pymetrozine WP per 667 m2, applied it once; on the day of spraying, each treatment was marked with 100 infected rice clumps for field observation. The results showed that the better control effects of black stripe dwarf disease of rice in south China could be done by draining rice field water and spraying bacillus subtilis and Pymetrozine mixture evenly, and keeping the field wet for 6~7 days after spraying.

Key words: rice, black stripe dwarf disease, bacillus subtilis, pymetrozine