Vegetables Gardening - Growing Organic Vegetables

Now that is is harvest time, all my plants are really struggling. They have been healthy all summer, but now they are very yellow. My cucumbers have TONS of flowers but won't produce. This is the same for my cherry tomatoes. They have TONS of flowers but won't produce. My large tomato plants have lots of tomatoes on them, but the plants look like they are dying. I will include a picture below. Any suggestions would be appreciated. [Non-text portions of this message have been removed]

What is the temperature like? Are nights cold? The plants you named are warm-weather plants and don't produce new fruit when nights get cold. Also, when it gets cold the plants cannot take up the nutrients, even when they are in the soil, and so they will get yellow (starved for nutrition).

Also, are you still feeding and watering them the same? Because of the above factors, and so as not to waste fertilizer, we recommend people stop fertilizing everbearing plants 8 weeks before killing frost.

Jim Kennard