Bacterial soft rot is caused by pectin-degrading bacteria such as Pectobacterium carotovorum, Dickeya dadantii, and certain Pseudomonas species. These bacteria enter plants through wounds and degrade the pectin between plant cells, causing tissues to break down into a soft, watery rot. Soft rot commonly affects potatoes, carrots, tomatoes, and other vegetables. It starts as water-soaked lesions that enlarge and become soft, mushy, and foul-smelling. Good sanitation and avoiding excess moisture can help manage soft rot by limiting bacterial spread and growth.