Should I prune the tops of my plants?
My garden is enclosed in a cage and my tomato plants have gotten to be about 7ft tall and are poking through the ceiling. Being July, production has slowed significantly and the leaves on the bottom 1/3rd of the plant are browning/dying. I'd like to get these plants through the next month of 110 degree heat and give them a chance to produce in the fall. I'm using 50% shade, heavy mulch and a drip...so they're standing up pretty well. Should I prune the tops to encourage them to bush out?..and if so how heavily?