Plant Pathology Resources
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C 1253
Phony Peach Disease
This fact sheet covers phony peach disease: History, symptoms, disease cycle, and management.
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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 2021. 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 Vegetable Commodity Commission.
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2019 plant disease losses, including control costs, amounted to an estimated $832 million. The value of the cropsused in this estimate was approximately $6.64 billion, resulting in a 13.3% 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, 2019 Georgia Farm Gate Value Report (AR-20-01). Some estimates for fruits, ornamentals, and turf rely on the specialist’s knowledge of the industry and industry sources for information.
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This publication provides 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.
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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 2020. Contributing authors include county and regional faculty as well as specialists from UGA’s horticulture, plant pathology, crop and soil sciences, and entomology departments.
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2018 plant disease losses, including control costs, amounted to an estimated $844 million. The value of the crops used in this estimate was approximately $6,268 million, resulting in a 13.5% 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, 2018 Georgia Farm Gate Value Report (AR-19-01). Some estimates for fruits, ornamentals, and turf rely on specialist’s knowledge of the industry and industry sources for information.|
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This annual publication includes a report of 2019-20 onion research variety trials and Extension activity at the University of Georgia College of Agricultural and Environmental Sciences. The report contains the results of research awarded by the Vidalia Onion Commodity Commission.
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Stubby-root nematodes, Paratrichodorus minor, are considered an important pest of onions in Georgia. Low to high population densities of this nematode were observed in multiple fields in the Vidalia area causing damage to sweet onions. The most obvious aboveground symptoms of stubby-root nematode nematode infection are poor, stunted growth of onion seedlings. Stubby-root nematodes have a wide host range, including sugar beets, potatoes, corn, cotton, peanuts, wheat, onions, grasses and some other vegetable crops that are commonly grown in Georgia. Fallow crop rotation with non-host cover crops and treating seedbeds with suitable fumigant and non-fumigant nematicides are effective controls for this pest.
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Root-knot nematodes are highly adaptable, obligate plant parasites (parasites that cannot reach adulthood without a host) that attack plant roots and establish a prolonged relationship with their hosts. There are three common species of root-knot nematodes known to parasitize watermelon in the U.S.: the southern root-knot, M. incognita, the peanut root-knot, M. arenaria, and the Javanese root-knot, M. javanica. The southern root-knot nematode is ranked first in terms of negative impact on watermelon production, particularly in warm temperate climates. Many watermelon fields in Georgia are infested with one or more species of root-knot nematodes.
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