Cucumber Plants

White Spots on My Cucumber Plants


rhall01 added on June 16, 2012 | Answered

Big yellow spot on squash plant as well. Is this from overhead watering at night?


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ANSWERS
Nikki
Certified GKH Gardening Expert
Answered on June 18, 2012

Are the spots powdery in nature or bleached out looking? It could be attributed to either powdery mildew or from water spots associated with overhead watering or splashing of the leaves. Limiting overhead watering will help with these water spots. The powdery mildew can be treated with neem oil, which is an effective and safe fungicide. It will also guard against many insect pests. Here is more information: https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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