Bruising on Strawberry Leaves

By Jerry Brust, UME

Over the years I have seen dark spots on the foliage of strawberry plants (Fig.1). These spots can look pretty bad at times and are thought to possibly be the start of some disease such as angular leaf spot or anthracnose. The dark spots are usually on the upper or lower surface of the leaf, but at times can be found on both surfaces of a leaf, which can indicate a biotic source for the problem. These damaged areas of strawberry foliage can be very disconcerting when they appear as dark spots on the stems (Fig 2).

Fig.1) Dark spots on strawberry leaves often mistaken for the start of a foliar disease.

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