White Poweder/Granules on Tomatoes!!!

westy1941(Boulder County, CO)September 1, 2013

Went to pick a few at a plot I'm renting this morning and there's a white powder - almost looks like salt - on all 13 tomato plants - leaves on the top half of the plant are curling. They were fine yesterday. Acid rain? I'm going to post on the Rocky Mountain forum too - it's also on the mulch below the tomatoes but not on the other side of the garden three feet away where there are peppers, squash, lettuce, etc. Only on the tomatoes - leaves and top of fruits. Any ideas? All the plots are organic so not allowed to use anything bad.


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My guess would be powdery mildew

Here is a link that might be useful: Powdery mildew on toms, google images

    Bookmark   September 1, 2013 at 10:49PM
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jean001a(Portland OR 7b)

Powdery mildew wouldn't be on the soil.

We need pictures! If none, everything is a guess.

    Bookmark   September 1, 2013 at 11:15PM
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