Cucumber Plant Leaves Yellow Spots. It’s most often spread by aphids and. Zucchini and cucumber are quite vulnerable to a variety of diseases, and several of those can make leaves start turning yellow and dry up.
Not all leaves are affected either: Yellow and brown spots indicate downy mildew. See more ideas about cucumber leaves turning yellow, plant diseases, powdery mildew.
The spots are very small, distinguishing them from angular leaf spot, and spots are not confined by the veins on the cucumber plant's leaves.
This can actually lead to stunted growth or even death depending on the severity of the condition. Check to see if your plants are infected with any of these: If cucumber leaves turning yellow or bronze, it indicates the deficiency of phosphorous. The plant was moved for a few reasons.