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   Herbs & Vegetables
 more...>Plant Disease Clinic>Fact Sheets>Herbs & Vegetables>
Louisiana Plant Pathology: Scurf of Sweet Potato
scurf

Scurf is a common disease of sweet potatoes. Proper identification is the key to successful disease management. Use this fact sheet to help you identify and manage this disease. (PDF Format Only)

Louisiana Plant Pathology: Southern Root-knot Nematode on Vegetables
southern root-knot nematode

The southern root-knot nematode (Meloidogyne incognita) is a widespread problem in Louisiana. This pest favors the soils where most vegetables are produced and has been found in about 25 percent of the vegetable gardens in our state. This nematode can be extremely damaging to some crops and causes severe losses. (PDF Format Only)

Louisiana Plant Pathology: Sclerotial Blight and Circular Spot of Sweet Potato
sweet potatoes

Sclerotium rolfsii is a soilborne fungus that causes southern blight on a wide variety of plants. Proper identification is the key to successful disease management. This fact sheet is intended to aid in the identification and management of Sclerotial Blight and Circular Spot. (PDF Format Only)

Louisiana Plant Pathology: Tomato Yellow Leaf Curl
tomato yellow leaf curl

Tomato yellow leaf curl is a relatively new whitefly-transmitted virus disease of tomatoes in the United States. It was first observed in South Florida in 1997 and has since spread throughout much of the Southeast, including Louisiana where it was first observed in 2000. Proper identification is the key to successful disease management. This fact sheet is intended to aid in the identification and management of this disease of tomatoes. (PDF Format Only)

Disease Management in Home Vegetable Gardens
home vegetable gardnes
This publication is intended to introduce home vegetable gardeners to the various methods used to manage the many diseases that affect these crops.
Louisiana Plant Pathology: Southern Blight
southern blight
Proper identification is the key to successful disease management. This fact sheet is intended to aid in the identification and management of the disease known as southern blight. (PDF Format Only)
Louisiana Plant Pathology: Tomato Pith Necrosis
tomato pith necrosis
Proper identification is the key to successful disease management. This article is intended to aid in the identification and management of tomato pith necrosis. (PDF Format Only)
Louisiana Plant Pathology: Phytophthora Blight of Peppers
Phytophthora Blight of Peppers
Proper identification is the key to successful disease management. This fact sheet is intended to aid in the identification and management of phytophthora blight on peppers.
Louisiana Plant Pathology: Downy Mildew on Cucurbits
downy mildew on cucurbits
Downy mildew is a potentially devastating disease of all cucurbits. Disease symptoms, development, control measures and color photographs of symptoms on pumpkin, cucumber and watermelon are included.
Fungicides for the Management of Downy Mildew of Cucurbits
Downy mildew, caused by Pseudoperonospora cubensis, is a potentially destructive disease of all cucurbits. The use of fungicides is the primary means of managing this disease.
TYLCV-Resistant Tomato Varieties
Photo of TYLCV-infected tomato plant
Tomato yellow leaf curl is a potentially destructive disease of tomatoes caused by the tomato yellow leaf curl geminivirus (TYLCV). This disease is generally introduced into fields on infected transplants, but is then spread from plant to plant by the silverleaf whitefly. Management of this disease relies in part on the use of TYLCV-resistant tomato varieties.
TSWV-Resistant Tomato Varieties
Photo of TSWV-infected tomato fruit
Tomato spotted wilt is a destructive disease of tomatoes caused by the tomato spotted wilt tospovirus (TSWV), which is transmitted by adult thrips moving into tomato fields from weeds or adjacent crops. Managment of this disease relies primarily on the use of TSWV-resistant tomato varieties combined with the use of UV-reflective metalized mulches. Commercially available TSWV-resistant varieties are not immune to the virus, but should allow the production of acceptable yields.