大豆灰斑病主要为害成株期叶片，也可侵染幼苗、茎、荚和种子。病粒出生的幼苗子叶上出现半圆或圆形褐色病斑。成株期叶片上的病斑最初为退绿圆斑，逐渐发展成为边缘褐色、中央灰色或灰褐色的蛙眼状斑，故又名蛙眼.
白兰叶斑病怎样防治-实用技术-农博数据中心
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药用天门冬栽培技术-实用技术-农博数据中心
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花卉真菌病害的防治技术-实用技术-农博数据中心
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