disease or blight on cucumber plants

Megan0127July 15, 2012

I'm a beginning gardener, and several of the plants in my first-year raised vegetable bed have turned awful in the last week or so. One tomato plant started the trend, starting several weeks ago--leaves and stems turning yellow and then brown and shriveled. But in the last week it hit the cucumbers (photo attached--I'm sorry it's sideways) and then the zucchini. I had aphids last week and sprayed a soap-water aphid-smothering solution on the plants every other morning a couple times. This current problem looks more like grey mold when I compare it to pics in the gardening books, but the conditions in my garden don't seem right for grey mold--the plants are widely spaced, and I'm in dry Southern California. The soil is a combo of organic compost and garden soil, and there are tomato fertilizer stakes in the soil around the tomato plants. I haven't otherwise fertilized the garden since we built it in early May.

I'm woefully inexperienced and in need of advice. What is ailing my plants, and what can I do? Thank you in advance for suggestions!

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jean001a(Portland OR 7b)

oops; no picture

    Bookmark   July 15, 2012 at 6:50PM
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aphids carrys viruses and beetles carries bacteria.

    Bookmark   July 15, 2012 at 11:47PM
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dont know without pictures though. powdery mildew wild guess.

    Bookmark   July 15, 2012 at 11:53PM
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All compost is organic. Anyone that sells you "organic compost" may be selling you a "pig in poke". The term "garden soil" is the same, meaningless since that can be anything the seller wants it to be.
Pictures may be of some help as can a visit to your counties office of the University of California Cooperative Extension Service where they would want you to bring in samples of what you see.

    Bookmark   July 16, 2012 at 7:22AM
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