What makes the bottoms of my tomatoes turn soft and grayish black every year?
A. It’s caused by improper distribution of water to the plant. If you will wait until about four weeks after you plant your tomatoes and cover the roots with four or five inches of grass clippings or straw, you should never be bothered by blossom end rot. Q. What makes tomatoes stop growing in the middle of the summer? The fruit falls off, the leaves curl up, and the plant dies. A. This is called fusarium wilt and can be prevented by spraying the soil in the fall and early spring with the fungicide Benomyl. If you had the problem last season, treat it before you plant again ’cause it sure as hell ain’t going away by itself.