What causes tomato plants to get branches and leaves to have brown spots

Question

The stems and leaves have small brown spots, then the leaves turn yellow, and shrivel up and the plants are dying.

Answer 1

Unfortunately, it sounds like early blight. This article will have more information: https://www.gardeningknowhow.com/edible/vegetables/tomato/early-blight-alternaria-tomato-leaf-spots-yellow-leaves.htm