Fruit and Vegetable Production Resources
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B 1490
Vineyard Frost Protection
The vineyard industry is growing across Georgia and across the Eastern United States. Frost is a perennial threat in these regions, and reducing frost risk can save approximately $48,000 per acre in return revenues. Since many growers new to the industry will be planting vineyards, it is important that they are aware of the risk of frost and ways to avoid it. This bulletin also serves as a good reference for current industry members who are unaware of the risk of frost or who want more information on how to manage its risk. This publication covers all aspects of vineyard frost protection, including weather patterns that cause frost/freeze damage, as well as passive and active methods that can be employed to reduce frost risk.
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Propagating disease-free blueberry plants is important for the future sustainability of the blueberry industry in Georgia and the Southeast. Over the past two to three decades, the Georgia blueberry industry has experienced remarkable growth and has become a national leader in blueberry production. To remain competitive, Georgia blueberry producers need a supply of healthy plants to replace older plantings and obsolete varieties. This publication helps producers understand how to best address many cultural and disease issues observed in developing disease-free transplants from softwood cuttings.
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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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Aflatoxin is a naturally occurring toxin produced by the fungus Aspergillus flavus. The fungus can be recognized by a gray-green or yellow-green mold growing on corn kernels in the field or in storage. Plant stress due to drought, heat or insect damage during fungus growth usually increases aflatoxin levels. Aflatoxin contamination will reduce feeding value and hinder sales. Because it is extremely poisonous to warm-blooded animals even at relatively low levels, grain handling facilities often check for the presence of the toxin before purchasing corn.
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Dooryard citrus has been grown in Georgia for decades, but growing citrus commercially is new to Georgia growers. This resource addresses problem prevention, maintenance, insects, diseases, and some physiological issues of concern in Georgia. The time of year to address maintenance, insects, disease, and physiological issues is projected. Many of the production practices in Georgia are similar to those in Florida, but some, such as timing of fertility, are different. Many of the known insects and diseases of citrus have been confirmed in Georgia while others are yet to be confirmed. As new citrus trees and varieties are brought in from citrus nurseries in Georgia and other states, more production issues will arise. Many issues covered in this publication may not be present in all commercial groves, and other issues will certainly arise. Many citrus management problems can be prevented by proper planting techniques and by selecting the best citrus varieties and rootstocks adapted to our location. Planting healthy, disease-free citrus trees in appropriate sites with adequate windbreaks and irrigation may prevent future issues and limit the need for many pesticide applications.
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One of the most common questions regarding citrus is how much cold weather they can withstand before they are killed. Most citrus growers are looking for a specific low temperature, but there is no simple answer to this question because there are so many factors involved in citrus cold hardiness. This publication details research and information on the relative cold hardiness of different citrus varieties in Georgia documented from the 2022 December freeze, which saw unseasonably low temperatures. It is important to document the impact of a freeze such as this one on citrus varieties as they are a long-term investment and should be chosen carefully. Additional authors include: Danielle Williams, Mark Frye, Derrick Bown, Jason Edenfield, Justin Shealey, Ben Reeves, Holly Anderson, Tucker Price, Braxton Crews, and Kim Post.
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Esta circular cubre los principios básicos de cosecha, manipulación y almacenamiento en frío poscosecha de arándanos para el mercado fresco para garantizar la mayor vida útil y calidad posibles y, al mismo tiempo, minimizar las pérdidas poscosecha. Los arándanos se cosechan en Georgia desde finales de abril hasta finales de junio.
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C 1267-SP
Pre-Establecimiento de Arándanos
Autora adicional: Natalia Espinoza, Department of Crop and Soil Sciences. Esta publicación cubre las consideraciones que los productores deben tener en cuenta al elegir un sitio para plantar arándanos. Describe las características del suelo que se necesitan para cultivar y producir arándanos, cómo identificar un buen suelo, su drenaje y cómo cultivos anteriores podrían afectar la productividad de los arándanos.
[This publication is the Spanish-language version of C 1267, Blueberry Pre-Establishment, and covers the considerations producers need to have in mind when choosing a site to plant blueberry. It describes the soil characteristics that are needed to grow and produce blueberry, how to identify good soil, soil drainage, and how prior crops could affect blueberry productivity.]
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Watermelon production faces many challenges in Georgia. The warm, humid climate favors numerous foliar diseases. Because of the long history of watermelon production in Georgia, soilborne diseases such as Fusarium wilt also present challenges to growers. This bulletin will provide background on disease symptoms, pathogen survival and infection, pathogenic races, and management.
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