Most concerning is that my tomato leaves are purple on the underside.
38+ Tomato Leaves Purple Underside. However, if you notice purpling of your tomato leaves or leaf veins, this could signal a small problem, such as temperature fluctuations tomatoes suffering from phosphorus deficiency exhibit symptoms such leaves showing purple veins or with an overall purple color. I have tomatoes growing on my bay window sill.
Avoid The Late Blight Blues from blogs.cornell.edu
Deeper purple stems up the entire stem or purple. To confirm psyllids, check the undersides of leaves for nymphs. Tomato plants infected with curly top have curled,and the veins on the underside of the leaves are purple.
They feed on tomato or potato plant sap and inject a toxic saliva that causes the characteristic psyllid yellows. leaves turn yellow;
The outer edges of the leaves are turning purple, then drying out and dying. The plants themselves (don't know if this is a coincidence) also seem to turn out stockier, shorter, and thicker in the end, and curl a bit. Leaves of infested plants are dwarfed, crinkled, rolled inward, and cupped upward. This might be happening here and isn't the result of.
