Pest identification
and confirmation—Powdery mildew
On plants infected with powdery mildew spots of dead tissue, sometimes with rings like those in early
blight lesions, may appear in the blotches. However, there are no lesions on stems or fruit, and there
is no vascular discoloration as with Verticillium or Fusarium wilt. Rarely, a gray mycelium
develops on the leaf surface.
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| Spots caused by early blight |
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