Septoria leaf spot causes black spots on tomato leaves with small fruiting bodies (raised bumps) in the center, resulting in yellow leaves that eventually turn brown and die.

It is caused by the fungus Alternaria solani and can cause black spots on the leaves and fruit of tomato plants. These spots can range in size from small spots to large, irregularly-shaped lesions.

Q • The lower leaves of my tomatoes are turning yellow, and they have small black spots on them. Some of the spots are grayish white in the center and Spots on tomato leaves could be fungal disease ...

As vegetable gardeners, we look forward to bringing in an armful of vegetables. Of these, tomatoes win the prize. Tomatoes ...

After discussing weeds and insect pests, we conclude our “unwanted garden guests” series today on the subject of diseases.

Q: My tomato plants have started to get white spots on the leaves. Before it gets any worse and spreads to other plants, I would like to know what it is and how to get rid of it. —Julia Stalek ...

Tomato leaves will begin showing signs of leaf-spot diseases soon if they haven’t already, Kansas State University horticulture expert, Ward Upham said. Brown spots on the leaves indicate ...

If You See a Black Spot on Your Dog's Tongue, ... They typically turn tomato-leaf edges brown and the veins yellow, though in some cases, purple spotting can also occur.