一九七二年我们开始进行应用化学不育方法根治三化螟的研究工作,今年继续进行不育剂筛选,希望找出对三化螟有效的、理想的化学不育剂,探索今后根治三化螟的新途径。试验于一九七三年三月至四月在广州石牌进行。试验虫源于去年采自田间的越冬幼虫。待化蛹和羽化后分别 In 1972, we started the research on the application of chemical sterility to the cure of the rice stem borer, and continued the screening of infertility agents this year. We hope to find out the effective and ideal chemical sterilant for the rice stem borer, A new way to deal with Chilo suppressalis. The trial was conducted in Guangzhou Shipai from March to April 1973. The test insect stems from the overwintering larvae collected from the field last year. To be pupation and eclosion respectively