Janna Beckerman, Purdue University (IMAGE)

Purdue University

Janna Beckerman, Purdue University

Caption

Janna Beckerman examines a Ralph Shay crabapple tree that is infected with apple scab. The fungus shows up as brown lesions on the leaves and fruit of crabapple trees, causing early defoliation.

Credit

Purdue Agricultural Communication photo/Tom Campbell

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