5.南瓜细菌性缘枯病

(1)病原:Pseudomonasmarginalispv.marginalis(Brown)Stevens,称边缘假单胞菌边缘假单胞致病型,属细菌。南瓜细菌性缘枯病喷菌现象南瓜细菌性缘枯病典型症状南瓜细菌性缘枯病多从边缘开始发病南瓜细菌性缘枯病初期症状(2)症状:病原菌多从水孔 ......（本文共 426 字 , 6 张图）     [阅读本文] >>