Commercial Weed Control Resources
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Vaseygrass is a warm-season perennial grass weed commonly found in pastures and hayfields in the southern half of Georgia. Recently, vaseygrass has begun to spread north in Georgia and can now be found sporadically throughout the Piedmont region of the state.
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A handy reference for horse owners and land managers to help identify weeds that are toxic to horses, with pictures to aid identification, a brief description of the plants, and the specific toxicity symptoms associated with common weeds and trees that are poisonous to horses. It also gives tips on how to better manage pastures to prevent pasture-related plant toxicities. This publication is suitable for a general audience concerned with equine health and pasture safety.
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Fertilizer injectors are devices used to apply water-soluble fertilizers, pesticides, plant growth regulators, wetting agents and mineral acids during crop production. They are a vital part of modern greenhouse or nursery operations. Despite the advantages, many growers have had at least one experience with a compromised, damaged or even ruined crop where the cause was traced to a malfunctioning injector. Just like other mechanical devices, proper and frequent maintenance and calibration are crucial steps to ensure optimal injector performance and, thus, healthy crops.
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Annual ryegrass, also referred to as Italian ryegrass, is the most problematic winter annual weed in Georgia hayfields. Seed germinates from September to November. Seedlings mature in the fall, overwinter in a vegetative state, and resume active growth in the spring. Annual ryegrass is a prolific seed producer that contributes to annual infestations. This resource summarizes the growth and identification of this weed. Cultural and chemical control options are also presented for tall fescue, bermudagrass, alfalfa, bahiagrass and other forage legumes grown for hay production.
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This is a new annual guide for managing diseases, insects, weeds, and wildlife in bunch grapes in the Southeast. This regional integrated pest management guide provides recommendations 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. This publication is a product of the Southern Region Small Fruit Consortium.
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This publication provides updated (2023) 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 publication discusses the proper calibration methods sprayers and other liquid applicators.
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Johnsongrass is a warm-season perennial weed in pastures and roadsides throughout central and northern Georgia. Populations may germinate from seed in spring after overwintering in the soil. However, Johnsongrass primarily emerges from dormant rhizomes in areas with a history of infestations. Rhizomes are belowground stems that produce daughter plants and storage reserves for new growth in spring. The persistence of Johnsongrass is primarily associated with extensive rhizomatous growth that enable populations to spread laterally and dominate areas by preventing desirable species from flourishing.
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Grazon® P+D (picloram + 2,4-D) injury, diagnosed as leaf roll, is occasionally observed in Georgia peanut fields due to the presence of contaminated soil, forage, animal waste (manure/urine), and/or irrigation water. Since peanut plants are very tolerant of low levels of 2,4-D, the primary cause of these leaf roll symptoms is picloram. When this injury occurs, growers are often concerned about how it can potentially influence final peanut yield. The original manuscript was prepared by Eric P. Prostko and O. Wen Carter, Department of Crop & Soil Sciences.
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