Commercial Plant Disease
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Plant disease losses in 2023, including control costs, amounted to an estimated $715.43 million. The value of the crops used in this estimate was approximately $6863.22 million, resulting in a 10.42% 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 2023 Georgia Farm Gate Value Report (AR-25-01). Some estimates for fruits, ornamentals, and turf rely on Extension specialists’ knowledge of the industry and industry sources for information. Because of the retirement of the Extension specialist for ornamental and commercial landscapes, disease losses for this category could not be included in the report.
Ruchika Kashyap, Phillip M. Brannen, Timothy Branner Brenneman, Bhabesh Dutta, Ganpati Jagdale, Robert C Kemerait Jr, Alfredo Martinez, Jonathan E. Oliver, and Laxmi Pandey
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This resource describes whiteflies and the damages they cause in cucurbit crops, and offers recommendations for cucurbit crop varieties for fall season production in southern Georgia that are resistant or tolerant to silverleaf disorder and whitefly-transmitted viruses.
Nirmala Acharya, Ted McAvoy, Sudeep Bag, and David G Riley
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Rose rosette virus can cause major problems for nurseries, landscapers, and gardeners alike. The virus causes the plants to become undesirable and will eventually result in the death of the plant, which affects all segments of the rose industry as well as rosarians and home gardeners. The symptoms of disease on ornamental roses are a yellow mosaic pattern appearing on leaves, increased thorniness, abnormally shaped foliage and early production of lateral buds that make up the witches’ broom. This publication is intended for rose producers and serious rose gardeners interested in technical details of this virus and a mite that transmits it.
Jean Williams-Woodward, William G. Hudson, Bodie V. Pennisi, Shimat V. Joseph, and Alejandra Monterrosa
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This integrated pest management (IPM) guide for blackberry and raspberry production includes management of diseases, insects, and weeds through IPM principles. Topics include pesticide stewardship and safety, insect and disease control, pre-transplant and transplant operations, fungicides and insecticide efficacy comparisons, and spray schedules, weed management, wildlife damage, and more. Recommendations are based on information from the manufacturer’s label and performance data from research and Extension field tests. Specific rates and application methods are on the pesticide label, and these are subject to change at any time. Published in cooperation with the Southern Region Small Fruit Consortium.
Phillip M. Brannen and Jonathan E. Oliver
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Microdochium puede ser severo tanto en el césped principal como en Poa, Lolium, Festuca pero puede infectar a céspedes de clima cálido si estos tienen un crecimiento activo o están en semi-dormancia. La enfermedad se observa comúnmente en áreas que se han sido resembradas.
Alfredo Martinez and Bochra Amina Bahri
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Esta publicación es una guía completa para la identificación y control de enfermedades de los céspedes en Georgia. Enfermedades incluyen: mancha “dólar”; anillos de hada; pudrición radicular “toma-todo”; Mancha parda/Mancha larga por Rhizoctonia Royas; Mancha foliar o decaimiento por Curvularia; quemazón o mancha foliar gris; antracnosis; hongos gelatinosos; y pudrición radicular por Pythium/quemazón por Pythium. La publicación también incluye una guía sistemática para el diagnóstico de enfermedades de céspedes; un clave simplificada para la identificación de enfermedades de céspedes; y el calendario de enfermedades de céspedes en Georgia.
Alfredo Martinez
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Esta publicación describe algunas de las enfermedades más problemáticas en las plantas de ornato más usadas en el jardín. El material presentado aquí le ayudará a identificar estas enfermedades y encontrará las recomendaciones para su tratamiento. El conocimiento de estas enfermedades permitirá a los jardineros profesionales y amateurs a combatir estas enfermedades y tener plantas saludables y bellas.
Alfredo Martinez
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En el estado de Georgia, la mancha gris afecta primordialmente al césped San Agustín y es particularmente dañino y muy prevalente en áreas costeras del estado. En fescue alto aparece en forma esporádica y se observa anualmente en la región norte del estado (zona del Piedmont). Afectando céspedes estresados por el calor. En la región sur y central de Georgia, la mancha gris es más activa en junio a agosto, sin embargo, en las primaveras que son cálidas, la enfermedad puede presentarse temprano en el año.
Jake Price, Elizabeth L. Little, Alfredo Martinez, and Donald M. Gardner
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This publication is a comprehensive guide to identifying and controlling turfgrass diseases in Georgia.
Alfredo Martinez and Leon Lee Burpee
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