Tomato: Anthracnose Categories: Tomato Tomato Diseases Vegetables Last review date: 2026-08-28 02:15 Tomato anthracnose Photo by: R.S. Byther Biology Tomato anthracnose is a fungal disease primarily seen on ripe fruit. It may sometimes affect leaves. Leaf symptoms are most common on older leaves, which show small, dark spots surrounded by a yellow halo. Fruits may […]
Tomato: Blossom-end rot Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Tomato blossom-end rot Photo by: R.S. Byther Biology Blossom end rot is a physiological problem affecting tomato fruit. A tan, water-soaked lesion develops near the blossom scar on the end of the fruit. The lesion enlarges, turns black and leathery, and can […]
Tomato: Catface Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Tomato catface on ripe fruit Photo by: R.S. Byther Biology Catface is a physiological problem affecting tomato fruit. Damage to blossoms, cold temperatures during fruit set, exposure to growth-hormone-type herbicides, and abnormal growing conditions are among the possible causes of catface. Affected fruits […]
Tomato: Curly top (Beet curly top virus) Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Curly top virus symptoms on tomato Photo by: R.S. Byther Biology Curly top is caused by a virus transmitted by the beet leafhopper. Many crops are affected, including tomato, bean, squash, beet, spinach, cucumber, and pepper. Typical symptoms […]
Tomato: Late blight Categories: Tomato Tomato Diseases Vegetables Last review date: 2026-08-28 02:29 Tomato late blight infected fruit and foliage Photo by: R.S. Byther Biology Late blight of tomato is caused by a fungus which also causes disease on potato, eggplant, and other members of the potato family (Solanaceae). Gray-green, water-soaked spots appear on leaves, […]
Tomato: Mosaic viruses Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Tomato mosaic virus symptoms Photo by: R.S. Byther Biology Several viruses can cause mosaic symptoms in tomatoes, including tobacco mosaic virus (TMV), tomato mosaic virus (ToMV), and cucumber mosaic virus (CMV). Symptoms caused by TMV and ToMV are similar. Leaves show green […]
Tomato: Physiological leaf roll Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Physiological leaf roll on tomato hoto by: C. Miles Biology Physiological leaf roll of tomato is a cultural problem which may be associated with high soil moisture, high temperature, drought, or heavy pruning. Plants with a heavy fruit load are often […]
Tomato: Sunscald Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Sunscald on tomato Photo by: F. Buajaila Biology Sunscald of tomato fruits frequently occurs in hot, dry weather, but may occur whenever green fruit is suddenly exposed to direct sun. The sunward side of green fruit develops a yellowish, light brown, or white […]
Tomato: Verticillium wilt Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Verticillium wilt Photo by: C. Miles Biology Verticillium wilt is caused by a fungus commonly found in the soil. Many species of plants are affected by Verticillium. Tomato and potato are favored hosts. Infected plants wilt, are stunted, and have yellow leaves […]
Tomato: White mold Categories: Tomato Tomato Diseases Vegetables Last review date: 2022-12-07 12:00 Interior stem showing white fungal growth and black sclerotia Photo by: R.S. Byther Biology White mold is caused by a fungus. It typically attacks dead flower petals or dead leaves, then spreads into living tissues. The infection often starts in branch crotches […]