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  • Expert Resources

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    Gardening
    Invasive species
    Food and food safety
    Ants, termites and other pests
    Pollinators
    Livestock
    Emergency preparedness
    Home safety and maintenance
    Health, family and finances
    Nutrition
    Water quality
    Lawn maintenance and landscaping
    Turfgrass
    View all topics

    What is an Expert Resource?


    We publish unbiased, research-backed expert advice to empower Georgians with practical, trustworthy information they can trust.

    These resources are written and reviewed by experts in the UGA College of Agricultural and Environmental Sciences and the UGA College of Family and Consumer Sciences.

    Learn how we produce science you can trust
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Horticulture

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  • Vineyard Canopy Management: Shoot Thinning

    C 1152

    Vineyard Canopy Management: Shoot Thinning

    Shoot thinning is the first seasonal canopy management practice in wine grape vineyards, but shoot thinning is not implemented in muscadine vineyards. Failure to shoot thin results in a highly congested canopy characterized by reduced air flow, high humidity, and extended damp periods. Muscadines can generally tolerate such conditions without adverse effects. Wine grapes grown in crowded fruit zones, however, will experience excessive disease incidence and severity—especially in the humid Southeastern U.S. Shoot thinning is therefore a necessary canopy management practice in wine grape vineyards in Georgia and other Southeastern states.

    Tim Coolong and Cain Hickey

    |

    March 30, 2022
  • Propagating Deciduous Fruit Plants Common to Georgia

    B 818

    Propagating Deciduous Fruit Plants Common to Georgia

    Deciduous fruit plants common to Georgia must be propagated asexually because they do not come true to seed. This makes it necessary to reproduce the desired fruit plants by methods such as cuttings, runners, layering, budding or grafting. This publication discusses the common techniques used to asexually propagate fruit plants adapted to Georgia.

    Gerard Krewer and Robert Westerfield

    |

    March 30, 2022
  • Dormant Spur and Cane Pruning Bunch Grapevines

    B 1505

    Dormant Spur and Cane Pruning Bunch Grapevines

    This bulletin is intended to provide to provide both veteran and new growers an overview of commercially popular pruning strategies and a greater depth of understanding of the theory behind pruning method practice. Dormant pruning is an important vineyard management decision as it sets the crop level and canopy density before green tissues are present. Growers must take several considerations into account when choosing a pruning method, including vineyard design, cultivar, and labor force throughout the year. Some growers may choose to adopt several different pruning strategies to successfully manage their vineyard. Regardless of the pruning method, it is important to develop a plan that includes scheduling when and how each vineyard block will be pruned throughout the dormant season. Effective dormant pruning sets the stage for successful vineyard management throughout the forthcoming growing season.

    Tim Coolong and Sarah Lowder

    |

    March 29, 2022
  • Construyendo Huertos Caseros

    B 577-SP

    Construyendo Huertos Caseros

    Un huerto bien administrado y productivo es una delicia. Este puede proveerle a su familia y a usted con una variedad de vegetales nutritivos y saludables que pueden ser disfrutados frescos o en conserva para su utilización en el futuro. El trabajar en un huerto casero también puede ser un pasatiempo gratificante, un proyecto para miembros 4-H y una manera en la cual mejoramos nuestra condición física. Aunque es cierto que podemos comprar en el supermercado vegetales frescos de alta calidad, congelados o enlatados, muchos de nosotros estamos inclinándonos más hacia el cultivo de vegetales en nuestro propio hogar para suplementar los alimentos que compramos en el supermercado.

    [A well-tended, fruitful garden is a delight. It can supply you and your family with a variety
    of nutritious, healthful vegetables to be enjoyed fresh or preserved for later use.
    Gardening can also be a rewarding hobby, a project for 4-H members and a way to improve
    your physical fitness. Although it’s true that we can buy quality fresh, frozen or
    canned vegetables in supermarkets, many of us are turning to gardening to supplement
    our store-bought food. This publication explains everything you need to know about growing a successful home vegetable or herb garden.]

    Robert Westerfield and Jonael Bosques Mendez

    |

    March 28, 2022
  • Herbicide Injury of Pecan Trees

    C 1146

    Herbicide Injury of Pecan Trees

    Georgia pecan orchards are often found growing adjacent to fields of annual row crops, timber, and pastures. As a result, the tree canopies of these orchards are susceptible to injury from herbicide drift from the adjacent operations when herbicide applications are made under conditions unsuitable for spraying. Drift may also occur when cotton fields are sprayed with chemical defoliants in the fall. Pecan tree roots often extend into an adjacent row crop fields and can compete with the row crop for available soil, water, and nutrients. Under such conditions, trees may also absorb residual herbicides from the soil in these fields.

    Marvin Wells

    |

    March 3, 2022
  • Principles of Irrigation and Scheduling for Vegetable Crops in Georgia

    B 1511

    Principles of Irrigation and Scheduling for Vegetable Crops in Georgia

    This bulletin contains guidelines to determine irrigation scheduling for vegetable production in Georgia. Irrigation scheduling varies with water management and growers may require different technologies to properly manage water application. This information is supplied to help irrigation managers schedule and operate irrigation systems to optimal capacity, applying water precisely to the crop for maximum effectiveness and high efficiency.

    Juan Diaz-Perez and Tim Coolong

    |

    March 3, 2022
  • C 1242

    Seed Saving in Georgia Gardens: A starter guide for schools, communities, and homes

    This circular describes the process of saving seeds, particularly for heirloom varieties in the Georgia garden. This guide is useful for both home gardens and school or community gardens.

    Rebecca Griffin, Clark MacAllister, Ashley Hoppers, and Jacob Williams

    |

    Feb. 3, 2022
  • C 1219

    Vineyard Canopy Management Series: Fruit Zone Management

    The “Vineyard Canopy Management Series” of Extension circulars reviews a number of canopy-management practices individually. Each circular advises how to effectively implement a canopy-management practice and why it is important to do so. The practices collectively known as “canopy management” aim to maximize canopy leaf exposure, maintain crop yield and quality, decrease disease, and improve vineyard health and sustainability. Though labor-intensive, canopy management should not be considered optional if the goal is annual production of high-quality grapes and wines.

    Cain Hickey

    |

    Jan. 28, 2022
  • A preliminary comparison between manual and mechanical pruning the muscadine juice cultivar ‘Carlos’

    B 1536

    A preliminary comparison between manual and mechanical pruning the muscadine juice cultivar ‘Carlos’

    Results from this study are preliminary, as only 2 years of data have been collected. Research over longer periods of time will be more revealing about how mechanical pruning will impact the perennial crop yield and health of the vineyard. Mechanical pruning is an option for dormant pruning ‘Carlos’ in situations where labor is unreliable and/or there is a low labor-to-acreage ratio which precludes the ability to finish pruning in the dormant period (December through March).

    Concerns remain regarding the inaccuracy of mechanical pruning and the resultant amount of diseased and unproductive grapevine wood that remains in the canopy. It therefore may be a good practice to manually prune blocks of the vineyard on a recurring basis in order to reduce canopy congestion and the potential for disease buildup. Mechanical pruning may not be best practice in fresh-market muscadine cultivars, particularly those that produce bronze fruit that are less tolerant of rots and defects than purple fruit.

    Mechanical pruning ‘Carlos’ and ‘Noble’ vineyards is worth consideration as these popular juice muscadine cultivars are vigorous and productive and may therefore sustain perennial health under high bud densities. Because of the preliminary nature of this report, it is recommended that mechanical, or “minimal” pruning, be trialed in vineyard blocks or sections before it is widely implemented with confidence.

    Alicia Holloway

    |

    Jan. 27, 2022
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