Tomato Pith Necrosis

Tomato pith necrosis affects mature tomato plants. Symptoms include a brown discoloration and necrosis of the pith, which eventually leads to hollow chambers in the stem. The pith browning usually extends far up the plant. Profuse adventitious roots are associated with the stem where the pith is affected. Gray or dark brown lesions may appear on the surface of the stem. Affected plants may turn chlorotic and wilt.