Commercial Vegetables
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2022 plant disease losses, including control costs, amounted to an estimated $933 million. The value of the crops used in this estimate was approximately $8200 million, resulting in a 11.4% relative disease loss across all crops included in this summary. The estimated values for most crops used to compute these disease losses are summarized in the UGA Center for Agribusiness & Economic Development 2022 Georgia Farm Gate Value Report (AR-24-01). Some estimates for fruits, ornamentals, and turf rely on Extension specialists’ knowledge of the industry and industry sources for information.
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Bacterial diseases are among the major production and economic challenges that onion growers face in Georgia. There are six bacterial diseases that commonly affect onion foliage and bulbs in the state. These diseases are difficult to manage and rely mainly on cultural practices and the use of protective bactericides. Host resistance is limited with little information on pathogen biology and the infection process. This bulletin provides a comprehensive outlook on specific symptoms associated with bacterial diseases, modes of infection and spread, and potential management options.
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The silverleaf whitefly (SLWF), Bemisia tabaci, (also known as sweet potato whitefly) is a pest of a wide variety of horticultural and agronomic crops in southern Georgia. Adults and nymphs (Figure 1) have piercing-sucking mouthparts and feed on phloem, the transport tissue of plants, and remove plant sap. While this direct feeding can damage plants and lead to additional problems with the accumulation of honeydew and sooty mold, whiteflies also inject salivary fluids while feeding, which can result in plant disorders and transmission of plant viruses. When viral pathogens are present, their transmission creates the greatest threat to the economical production of many vegetable crops, particularly tomatoes, snap beans, most cucurbit crops, and occasionally, cole crops. The potential for whitefly pest problems and viral disease incidence in Georgia varies greatly by year, location, and production season. Recent experience indicates that greater viral incidence can be observed when pest populations are high, even though few viruliferous (virus-carrying) whiteflies are needed to inoculate individual plants.
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This publication contains information about common tomato diseases in Georgia. It includes photographs and descriptions of diseases such as buckeye rot and fusarium wilt.
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Red cabbage is a highly nutritious vegetable crop, rich in minerals, vitamins, and several other chemical compounds that are beneficial for human health, including phenols, proteins, glucosinolates and anthocyanins. While red cabbage belongs to the same group as the other cabbage varieties (white and green) widely produced and consumed in the state, red cabbage production and consumption in Georgia is still low. This publication contains basic information on crop management, food safety practices, and biochemical properties of red cabbage.
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C 1300-02
Cross-Contamination
Cross-contamination, resulting in foodborne pathogen contamination of small fruits, can occur at any point throughout production and post-harvest handling. This video discusses techniques and best practices for growers and packers to ensure the production of safe, high-quality small fruits. This video was produced in collaboration with the Auburn Department of Horticulture.
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AP 130-2-11
2024 Vegetables and Pulses Outlook
1. Total harvested area of vegetables and pulses decreased by 3.2% from 2021 to 2022, and fresh and processed vegetable area harvested decreased by 5.1%; the situation is expected to deteriorate in 2024.
2. 2022 total imports of vegetables and pulses were $18.7 billion, an increase of 11.1% compared to 2021; this import trend is expected to continue.
3. Per capita vegetable consumption may increase in 2024 but will not attain the level seen in the years 2020–2022.|
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This report provides research and extension results for trials conducted by the University of Georgia Vegetable Team and its collaborators in 2023. Contributing authors include county and regional faculty as well as specialists from UGA’s horticulture, plant pathology, crop and soil sciences, and entomology departments. All research has been supported by the Georgia Commodity Commission for Vegetables.
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This publication is part of a series focusing on irrigation scheduling for vegetable crops. It contains basic information on water use and irrigation management using the crop water demand method for Solanaceae crops such as bell peppers, tomatoes, and eggplants.
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