Heirlooms - dusty brown 'rust' problem?
I cannot find a picture or description that fits this problem -- it started as a white "angel-hair" covering on the lower leaves and stems of the tomato plant, and now it looks like a rust-colored or brown dust on the leaves and stems. The entire lower part of the plant is fading, but the upper branches are still green and fruiting. Does anyone know what this is??
Here is a link that might be useful: Photos of sick tomato plant