21st November 2019

gardeningknowhow
13

What causes yellow leaves with brown spots on tomato plants?

Alternaria Alternata, or tomato early blight alternaria, is a fungus that can cause cankers and plant leaf spots on tomato plants. When a plant is infected with Alternaria Alternata, it will normally appear first on the lower leaves of the plant in the form of plant leaf spots that are either brown or black.