Leaf spot

Leaf spots are round blemishes found on the leaves of many species of plants, mostly caused by parasitic fungi or bacteria.

A typical spot is "zonal", meaning it has a definite edge and often has a darker border. When lots of spots are present, they can grow together and become a blight or a blotch. Fungal spots are usually round or free-form in shape.

单词	Leaf spot disease
释义	Leaf spot disease 英语百科 Leaf spot Leaf spots are round blemishes found on the leaves of many species of plants, mostly caused by parasitic fungi or bacteria. A typical spot is "zonal", meaning it has a definite edge and often has a darker border. When lots of spots are present, they can grow together and become a blight or a blotch. Fungal spots are usually round or free-form in shape.
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Leaf spot disease

Leaf spot