First, look carefully at the symptoms, especially the first symptoms to appear. It is difficult to diagnose problems when the plant is almost dead.

Second, match the symptoms with the photos in this tutorial.

Lastly, click on the photo to learn more about the disorder. Be sure that you have made a correct diagnosis.

Do you already know the problem?

Let's get started:

Do you see many insects on the plant? If yes, look at our list of common insect problems.

If no, you likely have a disease or other disorder. Tomato crops suffer from many disorders. The first symptoms of the disorder are especially important for diagnosis. Do the major symptoms appear on the vines or the fruits?