Best to pull at redness it is now. Letting ripe on the vine well on the plant will stop growth of new tomatoes. Grandparents where farmers Your cucumbers looks like they getting disease or mildew. Spray them with peroxide or mixture of baking soda. Saw some brown spotting on leaves. Hard to stop. Best to keep picking those cuccs If one over ripens ya prob lose the plant. Nice garden guys. Sweet potatoes yes about a month away