Publications

Esta guía muestra las abejas silvestres más comunes de las plantaciones de arándanos en el sur de Georgia. El material presentado aquí es un resumen visual del muestreo de 2021 y 2022 en campos comerciales de arándanos de los condados productores más importantes: Bacon, Pierce y Ware. En total, se encontraron más de 70 especies de abejas. La contribución de las abejas silvestres a la polinización de los arándanos es cada vez más reconocida. La identificación adecuada de estos insectos en el campo es una parte fundamental de los esfuerzos de conservación. (English: This guide shows common wild bees found in commercial blueberry fields in southern Georgia, based on sampling in the 2021–2022 seasons in three major producing counties: Bacon, Pierce, and Ware. In total, more than 70 bee species were found. The contribution of wild bees to blueberry pollination has is becoming widely recognized. Proper identification of these insects in the field is critical part of conservation efforts.)

Since only a small amount of water is available for human use, this publication was written to provide a broad-based discussion of how to protect our surface water resources.

Cotton defoliation is a complex production decision with many chemical options to consider. Harvest aids are utilized to prepare the crop for machine harvest, and timely defoliation and harvest of cotton can reduce weathering losses (yield and quality) and decrease trash in the lint. A basic knowledge of crop development and maturity as well as an understanding of the physiological effects of harvest aids on cotton plants is necessary in making decisions concerning defoliation.

Farmers have known for centuries that animal manures spread on pastures and cropland can improve soil fertility. In the 1920s, farmers began to use sludge from municipal wastewater treatment plants as a fertilizer. Through decades of research, the scientific and agricultural communities have come to understand that municipal sludge or "biosolids" contain valuable nutrients and organic matter that improve the soil in a way similar to animal manures. It is important to understand that biosolids are not raw sewage. Biosolids are organic solids that have been treated to stabilize organic matter and reduce disease-causing organisms or pathogens. This publication was developed to help answer some common questions regarding the use of biosolids and to give farmers benchmarks for good practices.

With the passage of the 2018 U.S. Farm Bill, industrial hemp (Cannabis sativa L.) was declassified as a Schedule I drug and is now legal (with restrictions) for production in the United States. Hemp and marijuana are both Cannabis sativa but are distinguished from each other based on the concentration of the psychoactive compound, tetrahydrocannabinol (THC). Industrial hemp is defined by law as a cannabis plant with total THC concentrations on a dry weight basis of less than 0.3% (+/- a measurement of uncertainty). This publication provides a basic overview of hemp testing for THC to stay in compliance with U.S. Department of Agriculture rules for hemp growers.

Foxtails (Setaria spp.) are invasive weeds in pastures and hayfields. The competitive growth of foxtails with pasture specie causes stand thinning and reductions in hay yields. Foxtails may be grazed in spring prior to inflorescence development. However, the production of seedheads is concerning in summer due to the sharp awns that can damage the gums of livestock. Hayfield growers are also concerned about the economic impact of foxtails on yield and hay quality. This publication discusses the identification of foxtail species along with cultural and chemical control options.

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.

Pearl millet (Pennisetum glaucum [L.] R. Br.) has a long history of use as a summer grazing and hay crop in the southeastern U.S. The recent development of new, adaptable and productive grain pearl millet hybrids in the Southeast gives crop producers a suitable alternative feed grain for dryland production.

Aeration conditions grain and seed by lowering the temperature of the material and equalizing the temperature within the storage structure. This prevents moisture migration and condensation and can reduce losses during storage.

Annual ryegrass (Lolium multiflorum), also referred to as Italian ryegrass, is the most problematic winter annual weed in Georgia hayfields. Seed germinates from September to November when soil temperatures drop below 70 degrees F. 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 publication 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.