Plant Pathology Resources
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This publication provides updated (2024) Southeast-specific information on approved National Organic Program (NOP) disease and pest management options for blueberry production and addresses the issues most commonly encountered under the unique growing conditions of the Southeast U.S. This publication is not intended to provide all details on organic blueberry production, although it does include the production methods that reduce the impact of plant disease and pest issues. Emphasis in an organic system should be on cultural practices that reduce disease and pest pressure rather than pesticide applications. NOP-approved pesticides are usually less efficacious than conventional products. The pesticide label is the law and supersedes any information on pesticide use contained in this guide. Because environmental conditions and grower application methods vary widely, suggested use does not imply that performance of the pesticide will always conform to the pest control standards indicated by experimental data.
Phillip M. Brannen
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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.
Phillip M. Brannen and Jonathan E. Oliver
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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.
Bhabesh Dutta
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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.
Timothy Coolong and Bhabesh Dutta
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The silverleaf whitefly (also known as sweet potato whitefly) is a pest of a wide variety of horticultural and agronomic crops in southern Georgia. Their direct feeding can damage plants and lead to additional problems with the accumulation of honeydew and sooty mold, and these insects also inject salivary fluids while feeding, which can result in plant disorders and transmission of plant viruses.
Bhabesh Dutta, Brendon Kyle Myers, Timothy Coolong, Rajagopalbabu (Babu) Srinivasan, Alton N Sparks, and Sudeep Bag
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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.
Elizabeth L. Little and Bhabesh Dutta
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This publication describes Macrocybe titans, the largest mushroom species in the Western Hemisphere, which has been found growing in Georgia.
Marin Talbot Brewer
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C 1303
Muscadine Grape Management
This phenology-based muscadine grape management poster provides a reference for sound viticultural, disease, and insect management practices in a digestible format. Produced in cooperation with University of Tennessee, North Carolina State University, University of Arkansas, and Auburn University. A publication of the Southern Region Small Fruit Consortium.
Patrick J. Conner, Phillip M. Brannen, Brett R Blaauw, David Lockwood, and Sarah Lowder
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This 2024 update to the regional integrated pest management guide provides recommendations for muscadine grape production in the Southeastern U.S. Recommendations are based on information from the manufacturer’s label and performance data from research and Extension field tests. This publication is intended for use only as a guide. Specific rates and application methods are on the pesticide label, and these are subject to change at any time.
Phillip M. Brannen and Sarah Lowder
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