Understanding Septoria Leaf Spot. Do you have brown or black spots on your tomato leaves? It could be septoria leaf spot.

Tomato plants don't hide their problems. Leggy plants are getting too much nitrogen, cracked fruit indicates overwatering, and leaves with holes are being chewed by insects. There are several reasons ...

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 brown on the outer edges with a yellow ring ...

Black spots on tomato leaves are usually caused by fungal diseases like Septoria leaf spot or early blight, which thrive in warm, humid weather and can reduce yields or kill plants if untreated. Treat ...