Weeds, Diseases and Pests Resources
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Weed management is one of the most critical and costly aspects for container nursery production. High irrigation and fertilization rates create a favorable environment for weed growth in addition to crop growth. Weeds can quickly out-compete the crop for light and other resources, reducing the rate and amount of crop growth as well as salability. Weed management in nursery production is most effectively achieved by preventative practices, primarily with the use of pre-emergent herbicides. However, there are valid reasons for managing weeds using alternatives to synthetic herbicides. Weed management alternatives to synthetic herbicides include sanitation, exclusion, prevention, hand weeding, mulching and use of cover crops, heat and non-synthetic herbicides. Only some of these alternative methods can be used to control weeds in containers, but all can be used to manage weeds around containers and in non-crop
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This publication contains descriptions and images, as well as methods of control, for common stinging and biting pests found in Georgia, including: bees, wasps, hornets, fire ants, scorpions, caterpillars, spiders, chiggers and flies.
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Dollar spot is an ever-present turfgrass disease that affects all warm and cool season grasses in the state of Georgia. The publication contains important information on the biology of the causal agent, detail description of the disease symptoms (aided by high quality-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 intended for turfgrass professionals, consultants, county faculty, homeowners and general public.
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This resource helps readers identify and manage tawny crazy ants, a highly invasive species from South America. The ant somewhat resembles invasive Argentine ants (also known as sugar ants).
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B 979
Orchard Sprayers
This publication contains comprehensive information about air blast and weed control sprayers for orchards.
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This publication contains a guide to diseases of oak trees in the landscape.
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This diagnostic system is designed as a tool to assist growers, Extension specialists and county agents to diagnose problems with ornamental crops. The document consists of six major sections and five appendices. Each section is designed to supply information on various important aspects of the crop under scrutiny.
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The field is a complex environment with many factors that can interact to influence the growth of a corn plant. These factors can be living in the form of insects, diseases, nematodes and weeds; or, they can be non-living such as weather, nutrients or chemicals. In the proper combination of factors, corn can produce more than 200 bushels per acre in the Southeast; or in a totally unfavorable combination, every corn plant can die. When a problem is identified, it is important to determine the extent and severity of the problem to decide whether corrective measures are necessary or available. Use this guide and other technical information before implementing any management decision. Contributing authors to the original manuscript include: University of Georgia: Dewey Lee, former Extension Agronomist; Eric Prostko, Extension Weed Scientist; Steve Brown, former Extension Entomologist; Randy Hudson, former Extension Entomologist; and Bob Kemerait, Extension Plant Pathologist; University of Florida: Greg McDonald, Weed Scientist; Mississippi State University: Richard Baird, Plant Pathologist; Auburn University: Paul Mask, Extension Agronomist, and Kathy Flanders, Extension Entomologist.
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B 1158
Sprayer Nozzle Selection
Nozzle selection is one of the most important decisions to be made related to pesticide applications. The type of nozzle affects not only the amount of spray applied to a particular area, but also the uniformity of the applied spray, the coverage obtained on the sprayed surfaces, and the amount of drift that can occur. Each nozzle type has specific characteristics and capabilities and is designed for use under certain application conditions. This publication describes the types that are commonly used for ground application of agricultural chemicals, including flat-fan, even flat-fan and cone nozzle.
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