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Vegetable Gardening

Spotted zucchini leaves

15 years ago

Hello all, I'm not sure if this is Downy Mildew or something else so I need your help. I have zucchini growing on the plant and it appears healthy - aside from the two yellow leaves on the bottom that weren't like that yesterday. Whatever this is, will it make the zucchini bad or kill the plant? There are no spots under the leaves, only on the top. Thank you very much for your help!

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Comments (3)

rhizo_1 (North AL) zone 7
15 years ago
Those particular kinds of spots are perfectly normal on healthy zucchini. Some varieties do it more than others.

It's not powdery mildew nor downy mildew. Call it a natural blotching.
Jayme1
Original Author
15 years ago
Thank you so much!! Very happy to hear my plants will be OK, I bought seeds from a different place this year so maybe that's why because I've never had them do this before and now I've learned that not all spots are bad :-)
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lgteacher
15 years ago
This is not uncommon with zuccini, especially if the weather has been damp, or if it is cloudy in the morning. It doesn't affect the fruit.

Here is a link that might be useful: What's Growing On?

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