Cucumber Plants
Q.

Gardening:- cucumber question

Zone IV2 4EA | alison.fraser added on May 26, 2018 | Answered

In the last week my cucumbers have developed yellow spots on their leave that appear to be spreading quite quickly. They are being grown in a well ventilated greenhouse. Please see photo. Thank you, Alison Fraser

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    BushDoctor
    Certified GKH Gardening Expert
    Answered on May 28, 2018

    That is a fungal infection, and doesn't look like one that will be easily cured in an isolated container. This can happen when there is little drainage, and the soil is on the heavy side. It will naturally retain water, and only dry at the top, which will invite infection fairly quickly.

    You can try wettable sulfur, but it may be too far spread already. Just make sure that when you are using container, you use a soil with quite a bit of perlite or any material that offers porous, high surface area for aeration.

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