【摘要】 1988年湖南省沅江市稻蝗大发生。本文从生境、气候、人为因子等方面分析了大发生原因,介绍了大面积防治的做法与体会。更多还原

【Abstract】 In 1988, there was an epidemic occurrance of oxya Chinensis inYuanjiang, Hunan. The paper dealt with the possible causes such as ecologicalenvironment, climate, cultivation, management, efc. It also discussed the preue-nting practice and understanding of an epidemic occurrence.更多还原