spider like web covered with red spots on my old cucumber plants

9 months ago

I grow cucumbers in my greenhouse. These plants have been growing well since February, so they are old, and suffering in parts from downy mildew. But still producing well. However, today I noticed at the top of the plants a spiderlike webbing covered with reddish spots. Not sure what it was, so I destroyed the plant, as it is getting time anyway to move on to winter plants. I am wondering if anyone knows what this might be? This is an image of the spider like web covering a leaf dead from mildew.

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