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苹果斑点落叶病的生物防治研究严志农，傅学池，贺敦强，梅汝鸿（北京农业大学植保系，１０００９４）苹果斑点落叶病是链格孢（ＡｌｔｅｒｎａｒｉａｍａｌｉＲｏｂｅｒｔｓ）强致病株系所致的一种病害，近年来成为我国苹果生产上的严重问题。防治此病，应用波尔多液、多...
Biological control of apple spotted leaf decay Yan Zhinong, Fu Xuechi, He Dunqiang, Mei Ruhong (Department of Plant Protection, Beijing Agricultural University, Beijing 100094, China) Apple spotted leaf disease is a disease caused by strong pathogenic strain of Alternaria malvaceae. In recent years, Apple’s production to become a serious problem. Prevention and treatment of the disease, the application of Bordeaux mixture, more ...