The leaves may turn yellow, starting at the edges and between the veins, and spreading inward. Usually both sides of the leaf are affected. The narrow part is on the interior of the leaf, but not necessarily bordered by the veins. The yellowed areas will eventually turn brown and die. Generally, older leaves are affected first.
Symptoms progress up the plants until only a few leaves remain on the top of the plant.
Generally both sides of a plant are affected equally. Plants affected when young may be stunted. Plants often show no symptoms until they are mature and bearing heavily. Fusarium wilt begins with lower leaves wilting or drooping, turning yellow then brown, and dying. Often just one branch or branches on one side of the plant will show symptoms.