I thought I was set up for a banner tomato year. I have/had 18 plants: 6 Roma, 6 Early Girl and 6 other that I can't remember. Through July/August they were all growing like gangbusters. I know I have an issue with VF contamination so the last few years I have been diligent to plant only varieties that note VF resistant. Seems to have worked, as I tried a few non-resistant plants and they suffered the wilt from I assume VF type disease. So, this year, I had 18 great looking plants, lush, growing great until early August when one seemed to start with the wilt looking crud. There were lots of green tomatoes and the other plants all looked good. But by later August, a month ago, slowly the other plants all started to look the same, didn't seem to matter the variety. The soil dampness was what I think was about right, very consistent although we did have a few couple day periods of pretty damp weather, but always dried out in a day or two later. By the time I should have literally had hundreds of tomatoes, they were falling off the plants, half ripe, some staying long enough to ripen but not totally. I am at a bit of a loss to understand what happened to my tomatoes. We did get lots of good enough fruit to make a couple gallons of sauce (our main goal) but probably lost 1/2 or 2/3 the crop and had only very few really nice and ripe tomatoes. One other thing, many, many of the tomatoes were really funky shapes, other than the Romas that never got to the size I would expect. Any ideas or thoughts? We are thinking next year I might move the raised beds to get a bit more sun as some trees have gotten over sized near the garden. And some new soil ought to solve the VF problem

Do you have any pictures of your growing area, or of your plants once they started to have the wilt problems? They might give us more clues to help you.

My first thought when you said "trees have gotten over sized" was first, too much shade. You definitely can't expect tomatoes to grow well and ripen fruit without all day sun up there in Cape Cod.

Second, that the trees are sending roots under where your tomatoes are growing, robbing them of moisture and nutrients. A tree will generally send out roots beyond the reach of it's branches, so the size of the tree's canopy plus at least 5 feet for a large tree, you'll find tree roots especially if there is a water and nutrient source like a raised veggie bed. That would definitely cause your tomatoes to wilt.

Regardless of whether there is a disease problem, you should absolutely move your raised beds away from those trees.

Aside from the wilting, did the leaves of the plants look diseased? Brown, yellow, blotchy, or discolored? Were the stems of the plants brownish and discolored?

Btw, VF on your tomato seed packets stand for two different soil-borne fungal diseases, Verticillium wilt and Fusarium wilt.

Down here in Florida we sterilize the soil if those things get going in our gardens, by solarizing (which is basically covering the soil with clear plastic and letting it bake for 6 weeks). But that's not practical where you are since your growing season is so short and your sun is too weak outside the growing season to bake the soil.

But for the most part, if you get some freezing weather in the winter the soil-borne fungi are killed off by the cold. So after you move your raised beds, you can probably sanitize the soil just by tilling it up and leaving it in standing rows so that the cold weather can freeze the pathogens in the soil more easily.