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Beginner Vegetables: Cucumber leaves getting yellow spots

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Forum: Beginner VegetablesReplies: 4, Views: 82
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Virginia Beach, VA

July 23, 2013
3:22 PM

Post #9609808

Our cucumber plants are growing good has alot of baby cucumbers and bunches of flowers...but suddenly they have yellow spots all over the leaves. I have grown cucks for many yrs. and never seen this ALL HELP WELCOME I dont want to loose them now

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Contra Costa County, CA
(Zone 9b)

July 23, 2013
7:34 PM

Post #9610078

Are there pests on the under side of the leaves?
Virginia Beach, VA

July 24, 2013
11:23 AM

Post #9610662

NOPE...that was the first thing I looked for. It dont look like a fungui either


Fort Worth, TX
(Zone 8a)

July 26, 2013
10:58 AM

Post #9612519

Looks like Downy Mildew. Do you water from the top?
Sedro Woolley, WA
(Zone 8b)

August 12, 2013
10:48 AM

Post #9628483

Same thing happened to mine. I didn't find anything about downy mildew when I was researching, but it looks like that is what I had. I thought it was magnesium deficency. We have had all of this rain, and being down south it's so humid too. I tried Epsom Salt, which helped a little but by then it was too late it was so rapid forming. I only got two Dragon's Egg cucumbers there were others forming but they dried up.

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