Septoria Leaf Spot and early blight can cause black spots on tomato plant leaves. Learn the cause of these fungal diseases, how to treat them, and how to prevent black spots on tomato leaves.

Tomatoes are one of the most commonly grown vegetables in home gardens. While tomatoes are relatively easy to grow, there are ...

Whether you're a tomato-growing novice or seasoned vet, get to know these common tomato plant problems and diseases so you can ensure your juiciest harvest yet.

If you suspect that you planted your tomato plants too close together, Weiss says that the first and foremost damaging sign is what’s called tomato blight, a disease that can completely obliterate the ...

Low nitrogen levels favor early blight, so a mid-season application may be helpful when tomatoes reach 2 inches in diameter. Remove all leaf tissue at the end of the season and don’t compost it.

Gardeners each year plant their tomatoes with anticipation of juicy, bright red, homegrown tomatoes. Depending on the season, tomatoes can be plagued by disease without proper precautions. Dr.

Early blight of tomato has been seen on the variety called Big Boy but is probably on others as well. If left alone, this disease will first cause yellowing on older leaves, followed by gray or ...

Several seasons back, Jeff McCormack, Ph.D., founder of Garden Medicinals and Culinaries and Southern Exposure Seed Exchange, shared a tomato pruning method with me that delays the onset of early ...

Both early blight and Septoria leaf spot are soil-borne fungi that overwinter in infested soil. They are likely to be present where tomatoes or their relatives have grown in previous years.

Q: I and many others had a terrible tomato season because of early blight. Are there any tomatoes that are resistant to blight? Is there any successful treatment? Conversely, I have several ...