Question From: C. Hebert - Connecticut, United States
Q: Do you know what this is(in photo) on my cucumber plant leaves? Please
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Alternaria leaf blightI believe it's Alteraria Leaf Spot . It can be treated with a fungicide labeled for this disease. Watering at soil level, removing all plant material in fall ( don't compost it) and 3 year crop rotation. Spraying with Soap Shield which you can get at Amazon and from Gardens Alive - www.gardensalive.com may control it. Hope this helps - Best And Happy Yardening, Nancy.