223 Browning Tomato Leaves? Making Hypertufa Pots.

A question from a listener is one you may be thinking about while you’re in the garden: why are my tomato leaves turning brown?Possibilities include shaded older leaves; tomato russet mites; whiteflies; aphids; root knot nematodes; fusarium wilt; verticillium wilt; late blight; powdery mildew. But in most of those instances, the tomatoes themselves will show abnormalities. In this case, the tomatoes were perfect. America’s favorite retired college horticulture professor, Debbie Flower, ...