叶斑 meaning in English

tikka
◇叶斑病 calico; [农业] leaf spot

Brown or yellow leaf spots . . . fungi which usually develops when water is allowed to remain on the leaves
褐色或黄色叶斑. . .水残留叶上，真菌容易滋长。
Control of the two main plantain diseases , yellow sigatoka ( micosphaerella musicola ) and black sigatoka ( micosphaerella fijiensis ) , is indispensable
对两种主要病害黄香蕉叶斑和黑香蕉叶斑病进行控制是必不可少的。
Spotted foliage . . . overwatering , burn from direct sun , cold water on foliage , fungal infection ( especially if plants are in very humid , wet conditions ) , or pollutants in the air
叶斑. . .浇水过多，日炙，叶上浇冷水，真菌感染（特别是植物处于非常潮湿情况下时），或空气中有污染物等。