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This factsheet describes early blight of tomato, including identification, transmission and disease management, and control.
This publication describes ways to minimize nematode problems by employing several control measures such as a rotational scheme, resistant varieties and selected cultural practices.
This vegetable pathology factsheet describes the identification and treatment of tomato late blight.
This disease factsheet describes Fusarium wilt of tomato. Symptoms, pathogen, environmental conditions, and management are included.
Tomato yellow leaf curl virus (TYLCV) is a viral disease of tomato that has limited distribution in the United States. TYLCV can cause devastating losses to tomato growers once established in the production site. This viral disease can also be found in temperate, tropical, and sub-tropical regions of the world. TYLCV is transmitted by adult whiteflies and is difficult to control once introduced to an area.
The Southeastern Vegetable Extension Workers Group (SEVEW) is proud to offer you the 25th edition of the Southeastern U.S. 2024 Vegetable Crop Handbook. We are excited to provide growers, crop advisers, county educators, Extension agents, and specialists throughout the southeastern United States with this handbook. This handbook represents a joint effort among Extension specialists and researchers from 15 land-grant universities in the U.S. who work in the area of vegetable production. These specialists and researchers represent a wide array of disciplines: agricultural engineering, entomology, food safety, horticulture (vegetable production), plant pathology, postharvest physiology, soil science, and weed science.
This factsheet describes three viruses that affect tomato: tobacco mosaic virus (TMV), Tomato mosaic virus (ToMV), and Tomato brown rugose fruit virus (ToBRFV). It provides information about symptoms and signs, disease cycle, and control.
This factsheet offers information on damping off in flower and vegetable seedlings, a result of fungi present in the growing medium.
This publication provides homeowners with recommended chemical control options to use in combination with an integrated management plan for managing common diseases in the landscape or garden.
This disease factsheet is a brief description of Verticillium wilt of tomato and eggplant. Symptoms, causal agent, and management are included.
Tomato spotted wilt virus (TSWV) is an important pathogen that causes disease in numerous crops, especially tomatoes and peppers. Resistance-breaking variants of TSWV were discovered in NC on tomato varieties with the Sw-5 resistance gene during the summer of 2022. Given that host resistance is currently the most effective management strategy of TSWV, these strains pose a great threat to tomato production in the coming years. This article will focus on TSWV identification and management strategies for tomatoes and peppers.
This factsheet covers management of bacterial spot on ornamentals.
This factsheet covers the pathogen, host plants, symptoms, and management of downy mildew, a foliar disease that affects brassica crops.
This vegetable pathology factsheet describes the identification and treatment of anthracnose of pepper.
This factsheet discusses the symptoms and control of bacterial spot of peppers and tomatoes.
Many ornamental crop species (including trees, shrubs, and bedding plants) are susceptible to diseases caused by Phytophthora, a genus of plant-pathogenic oomycetes (also known as water molds) that can persist in soil for several years. This publication rates common bedding plants, shrubs, and trees on their resistance to Phytophthora.
This plant disease fact sheet discusses southern blight, a soil-borne fungus that attacks tomatoes and peppers, and several other economically important crops, including beans, cantaloupe, carrots, peppers, potatoes, sweet potato, and watermelon.
This publication discusses the symptoms, diagnosis, and management of root-knot nematodes in ornamental plants.
Black root rot impacts a range of woody and herbaceous ornamental plant species primarily in greenhouse ornamental plant production, but also in home and commercial landscapes and nurseries. This disease causes decay of the root system and leads to yellowing, wilting, and necrosis of foliage. It is widely distributed and has been described on approximately 30 plant families in many parts of the world. Some of the most frequently impacted ornamentals are pansy, viola, Calibrachoa, annual vinca (periwinkle), Salvia, petunia, Persian cyclamen, snapdragon, Begonia, Verbena, Phlox, and Gerbera daisy. In addition to ornamental plants, some vegetable and other agricultural crops are also susceptible to infection.
Southern bacterial wilt of tomatoes is addressed in this factsheet.
This factsheet covers the identification and control of septoria leaf spot of tomatoes.
This vegetable disease factsheet discusses collar rot and Alternaria stem canker of tomato, which are caused by different species of fungi belonging to the genus Alternaria. Both pathogens can cause large, irregularly shaped stem lesions with pronounced concentric rings. However, the concentric rings may not always be pronounced with collar rot.
This publication discusses symptoms and signs of black rot disease of Brassicas. The publication includes disease management practices for both conventional and organic growers.
Botrytis blight, or gray mold, is a fungal disease that is widespread in the United States and globally. This fungus spreads via spores in the air and can result in economic losses if not managed early. In North Carolina, this pathogen is most threatening in the spring when temperatures are cool. This factsheet provides information about the disease, how it spreads, when it is a problem, and how to manage it through cultural and chemical practices.
Identification and management of Phytophthora in annuals and herbaceous perennials in greenhouses and in the landscape is discussed in this disease fact sheet.
This publication details strategies for to prevent and manage soilborne diseases in greenhouse crop production using soilless media. Tactics include sanitation measures, cultural practices, and the application of treatments to limit the development and spread of these diseases in the greenhouse.
This factsheet describes the symptoms and management of various viruses that can affect greenhouse tomato production in North Carolina.
The pathogen, host plants, symptoms and management of clubroot, a disease of crucifer crops, are discussed in this factsheet.
This publication describes gray leaf spot of tomato. Disease management options are provided for conventional and organic growers and for homeowners.
Tomato pith necrosis, first observed on tomato plants in 1978, continues to be a threat to tomato production across the US. The disease most severely impacts crops where high humidity and stress conditions are present, and as a result, it is mostly a concern for greenhouse and high tunnel tomatoes, but it can also impact field-grown tomatoes. There are currently no tomato varieties resistant to pith necrosis, nor any chemical treatments commercially available, so preventing the disease with good management practices is the best way to limit its occurrence.
This publication provides information about what biopesticides are, how they control plant diseases, and how they are used to control diseases of vegetables.
Vegetable Disease Fact Sheet
This factsheet describes Southern bacterial wilt, a widespread and destructive disease affecting multiple crops, and gives management options.
This vegetable disease fact sheet discusses three foliar fungal diseases (Botrytis gray mold, leaf mold, and powdery mildew) of high tunnel and greenhouse tomatoes.
This publication is a compilation of ideas from a few specialists based on research, reports in the landscape, experience, and intuition on how to manage storm and disaster damage in landscapes and nurseries.
This publication covers disease control in a variety of crops.
Clavibacter michiganensis, commonly known as bacterial canker, is considered one of the most necessary-to-manage diseases in the greenhouse tomato industry. Bacterial canker spreads quickly to infect both transplanted and directly seeded crops, especially through pruning practices when shears are not properly disinfected. An epidemic can begin with a single infected seed, so disease prevention should always remain a top priority for all growers.
This publication discusses using chemical plant protectants for disease control on greenhouse vegetables.
