Field Crops, Forage and Turfgrass Production
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Bahiagrass (Paspalum notatum Flugge) is a long-lived, perennial warm season grass that is grown extensively in the southeastern United States. It is most commonly used as a pasture species, but can be used for hay production, erosion control, and wildlife habitat. Bahiagrass can also be used in “sod-based rotation” sequences that have been found to suppress pest problems (nematode and disease issues) in crops such as peanuts.
Jeremy Kichler, Ronald Tubbs, Lawton Stewart, Lisa Baxter, and William Secor
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C 1180
Fescue Toxicosis in Horses
Tall fescue is the primary cool season perennial forage grown in the state of Georgia, and toxicity issues related to the grass can have significant impacts on equine reproduction. Tall fescue is the most heat tolerant of the cool season grasses due to a fungus that grows within the plant called an endophyte. This endophyte produces ergot alkaloids that can have negative effects on animals that eat the infected forage. The toxic effects of the endophyte can be successfully managed by eliminating the grazing or feeding of toxic tall fescue, as described in this publication.
Brenda Jackson, Dennis Hancock, and Lisa Baxter
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This publication summarizes the latest and most relevant information regarding the management of the bermudagrass stem maggot (BSM), including biological, cultural, physical and chemical mitigation strategies. In addition to information about how to control the pest, this bulletin provides detailed information about the history, identification, and biology of the bermudagrass stem maggot.
William Hudson, Jennifer Tucker, and Lisa Baxter
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Measuring, monitoring, and managing forage requires producers to regularly measure how much forage mass is present and how quickly that forage is growing. By using a rising plate meter, producers can assess the forage mass across several pastures quickly and with reasonable accuracy. Then, by comparing available forage in individual paddocks from one week to another, producers can determine the growth rate of the forage. In periods of poor growing conditions, management can be deployed to increase growth rates. In periods of rapid growth rate, decisions can be made to alter grazing sequences or plans can be made to harvest excess forage for hay or baleage. In short, the rising plate meter helps producers to assess the current status of each pasture and then make better decisions to increase the efficient use of that forage.
Lawton Stewart, Jennifer Tucker, and Lisa Baxter
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This publication contains information on Microdochium patch, an emerging disease in the state of Georgia. This circular contains the biology of the causal agent, as well as a detailed description of the disease symptoms (with detailed pictures), relevant up-to-date information on conditions favoring the disease, as well as cultural, genetic and chemical methods of control. The publication is aimed at turfgrass professionals, sod growers, consultants, county faculty, students, and the general public.
Alfredo Martinez and Bochra Bahri
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Summarizes shipper sweet corn production in southern Georgia.
Tim Coolong and Theodore Mcavoy
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This publication contains information on the most important and common diseases of oats, the biology of the causal agents, as well as a detailed description of the disease symptoms, relevant up-to-date information on conditions favoring the diseases, as well as cultural, genetic, and chemical methods of control. The publication is intended for producers, crop consultants, county faculty, students, and the general public.
Alfredo Martinez and Ryan Hodgson
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Turfgrass stands can be injured and damaged by biotic (living) and abiotic (non-living) agents. Most abiotic diseases cause generalized symptoms such as wilting, yellowing, thinning and the development of smaller than normal grass blades, limited root growth or slow growth. Based solely on symptoms, however, determining whether the condition is caused by a biotic or an abiotic agent can be challenging. In many cases, a proper diagnosis of abiotic diseases requires thorough examination of the site, knowledge of relevant past and present environmental conditions, in-depth knowledge of plant species biology, site management history, and an orderly series of tests to determine possible causes.
Alfredo Martinez
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Los céspedes pueden ser atacados por agentes bióticos (vivientes) y abióticos (no-vivientes). Los agentes bióticos incluyen patógenos (hongos, bacterias, virus, citoplasma etc) y plagas como nematodos, insectos, ácaros, moluscos y vertebrados (roedores, pájaros etc.). Los factores abióticos incluyen: condiciones climáticas como las temperaturas extremas, el exceso o deficiencia de agua, luz o nutrientes, suelo compacto, sequía, estancamiento de agua y/o prácticas de cultivo adversas. Estos factores pueden ser el resultado de una interacción que ha existido por un periodo largo de tiempo entre la planta y uno o más factores como la falta de espacio para un crecimiento radicular óptimo, la presencia de niveles crónicos de contaminantes del aire o agua.
[Turfgrass stands can be injured and damaged by biotic (living) and abiotic (non-living) agents. Most abiotic diseases cause generalized symptoms such as wilting, yellowing, thinning and the development of smaller than normal grass blades, limited root growth or slow growth. Based solely on symptoms, however, determining whether the condition is caused by a biotic or an abiotic agent can be challenging. In many cases, a proper diagnosis of abiotic diseases requires thorough examination of the site, knowledge of relevant past and present environmental conditions, in-depth knowledge of plant species biology, site management history, and an orderly series of tests to determine possible causes.]
Alfredo Martinez
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