论文部分内容阅读
甜菜田灰夜蛾幼虫空间分布型及抽样技术甘国福张春梅甘国禄甘国王君王芙兰俞天辉杨慧林（古浪县农技中心古浪７３３１００）灰夜蛾〔ＳｃｏｔｏｇｒａｍｍａｔｒｉｆｏｌｉＲｏｔ〕为多食性食叶害虫，主要为害小麦、豆类、甜菜。１９７４年曾在我县大发生，最近几年该虫在...
Spatial distribution pattern and sampling technique of beet armyworm (Gossypium hirsutum) Gan Guofu Zhang Chunmei Gan Gulu Wang Gujun Wang Fulan Yu Tianhui Yang Huilin (Gulang County Agricultural Technology Center, Gulang 733100) The insecticide (ScotogrammatrifoliRot) Beans, beets. Occurred in my county in 1974, the worm in recent years in ...