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Soil fumigants alone or in combination with nonfumigant nematicides can provide vegetable growers effective and reliable control of plant-parasitic nematodes, profitable yield and product quality, and increased profits. Treating soil with fumigant nematicides has been very beneficial to vegetable growers in Georgia, but environmental concerns may restrict the broad usage of these products. Telone II has been an important nematode management tool for the field production of many vegetable crops. Vegetable growers will have very limited options if soil fumigants, in particular Telone II, are no longer available. The development of new effective and environmentally safe nonfumigant nematicides has reduced the dependency on fumigant nematicides, but the application of fumigants still has great value for growers in Georgia.
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This is a biennial publication containing the proceedings of the turfgrass field day carried out at the UGA Griffin campus every other year. The guide provides professionals with continuous, real-time access to the latest up-to-date information about turfgrass research studies, products, and turfgrass Extension activities, programs, and outreach. Topics will include, but are not limited to, crop and soil science, agronomy, weed science, plant pathology, entomology, economics, tissue culture, urban agriculture, irrigation, and student posters.
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B 1499
Haiti Peanut Research Report
This report summarizes the findings of field trials and basic data collected in Haiti under the Feed the Future Peanut & Mycotoxin Innovation Lab project from 2014-2017. The focus of the research was to improve peanut productivity through management options for foliar diseases, low soil fertility, and other yield-limiting agronomic factors.
French translation:
https://extension.uga.edu/publications/detail.html?number=B1499-FR”>https://extension.uga.edu/publications/detail.html?number=B1499-FR|
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Drip, trickle, microemitters, and subsurface irrigation systems are considered low-volume irrigation. Low-volume irrigation systems are designed to improve irrigation efficiency, delivering water to the crop accurately with minimal water loss. Irrigation efficiency can be categorized into two main concepts: water loss and uniform application. If water loss is significant, or application uniformity is poor, efficiency will be low. Generally, the most significant loss of irrigation water is from overwatering, where the water percolates below the root zone, or from runoff. With good management, losses due to leaks, system drainage, and flushing of filters and lateral lines should not exceed 1%. Low-volume systems have the opportunity to achieve efficiency, and under careful management, will minimize losses from overirrigation. However, using low-volume systems requires increased irrigation frequency and soil moisture monitoring should be used to improve water-use efficiency. This publication covers system design, system efficiencies, components, chemical applications, diseases related to irrigation, and soil moisture monitoring.
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The silverleaf whitefly (SLWF), Bemisia tabaci, (also known as sweet potato whitefly) is a pest of a wide variety of horticultural and agronomic crops in southern Georgia. Adults and nymphs (Figure 1) have piercing-sucking mouthparts and feed on phloem, the transport tissue of plants, and remove plant sap. While this direct feeding can damage plants and lead to additional problems with the accumulation of honeydew and sooty mold, whiteflies also inject salivary fluids while feeding, which can result in plant disorders and transmission of plant viruses. When viral pathogens are present, their transmission creates the greatest threat to the economical production of many vegetable crops, particularly tomatoes, snap beans, most cucurbit crops, and occasionally, cole crops. The potential for whitefly pest problems and viral disease incidence in Georgia varies greatly by year, location, and production season. Recent experience indicates that greater viral incidence can be observed when pest populations are high, even though few viruliferous (virus-carrying) whiteflies are needed to inoculate individual plants.
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Exobasidium leaf and fruit spot, caused by the fungus Exobasidium maculosum, is an emerging disease affecting both southern highbush and rabbiteye blueberries. In addition to direct yield loss due to fruit drop, lesions on remaining fruit compromise the aesthetic qualities of the fruit as well as the taste, rendering them unmarketable. This circular provides the most current knowledge of this important pathogen/disease of blueberry and its management.
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B 1500
Calf Health Basics
Calf health is a key variable for calf growth and performance. Producers should not expect to know all calf health issues, causes, and the most successful treatments. Instead, a producer’s main goal should be to accurately identify and differentiate normal from abnormal in a calf’s physical state and behavior. The topics discussed in this publications are intended to help producers notice key areas of observation while also helping to identify normal and abnormal health parameters in calves. This information can also be used to develop calf management protocols and treatment strategies.
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Interest in organic food has been growing over the past twenty years. In Georgia, growing conditions during the summer are particularly difficult for organic producers due to high insect, disease, and weed pressure. However, pest pressures are much reduced when the weather cools. The moderate conditions of late fall to spring are ideal for production of many cool-season crops in the Southeast, including many crops that are traditionally grown as summer crops in other parts of the country. Shifting cash crop production to the fall through spring season may allow farmers to produce high-value crops more efficiently. This strategy may be particularly effective for those interested in wholesale production. This also leaves a window in the summer for cover crops that have many benefits. This bulletin discusses organic cool-season vegetable production and gives guidance for maintaining both soil health and successful production.
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