If the base of a stem, petiole, rhizome, or tuber rots (becomes slimy and soft or hard and dry), the problem may be crown rot. Many kinds of plants are attacked and often collapse and die.
To control, plant disease-free stock at the correct depth in clean, well-drained soil. Avoid wounding, overfertilization, and heavy, wet mulch. Control stem borers, stem- and root-feeding insects, and nematodes. Practice crop rotation. Remove and destroy diseased plants.
