22+ Purple Leaves Tomato Plants. These pests inject their toxic saliva into plant leaves and can kill young tomato plants.the leaves of affected plants turn yellow and the veins turn purple, a condition. Purple under leaves of tomatoes is a trait of phosphorus deficiency.
This can cause the leaves to yellow, and is really nothing to worry about.
Does the purple color mean anything? Fruits with firm, meaty, crimson flesh and few seeds. These pests inject their toxic saliva into plant leaves and can kill young tomato plants.the leaves of affected plants turn yellow and the veins turn purple, a condition. They are tropical plants which we are trying to grow in a temperate (think not tropical) environment.