Pecans
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An orchard floor provides a working surface for orchard operations and influences activities in the trees, which produce the crop. An efficient orchard floor cover does not compete heavily with trees for moisture and nutrients and is compatible with orchard insect populations. While weed competition with tree roots is significant throughout the life of the tree, in a newly planted orchard, weed competition can significantly reduce young tree survival and can stunt tree growth. Weed competition can reduce tree growth and yield, as well as promote alternate bearing in mature trees.
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Individuals who propagate trees have their own personal preferences with regard to propagation methods. As with many practices related to pecan production, timing is important for successful propagation.
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B 1314
Establishing a Pecan Orchard
This publication details the various components of establishing a pecan orchard for commercial production.
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This resource is a comprehensive guide for residents interested in growing pecan trees in Georgia.
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Pecan trees have high water requirements, using as much as 60 inches of total water (including rainfall) during the growing season. Georgia receives an average of 50 inches or more of rainfall annually. While the rainfall received certainly meets a portion of the water requirement for pecan trees, periods of moisture stress occur during the growing season, particularly during the months of August and September when pecans are in the kernel filling stage and water demand is at its peak. Thus, irrigation has been proven to markedly enhance pecan production in the region.
With increasing agricultural water use, a growing population, and declining groundwater levels, irrigation efficiency in the region is necessary for sustainability. Drip and micro-irrigation system design capacity for a mature pecan orchard should be 3600-4000 gallons of water per acre per day. Because of evaporation losses, solid-set sprinkler irrigation can require as much as 3 times more supplemental water than drip or micro-irrigation.
Solid set irrigation systems should have a design capacity of 1.5–2 inches per week. Water stress in pecan is correlated with soil moisture from budbreak through the end of nut sizing. Pecan trees bearing a moderate to heavy crop load may undergo water stress during the kernel filling stage regardless of soil moisture level. This suggests that crop load and nut development drive the tree’s demand for water.
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As Georgia’s pecan production acreage has increased, reports of insect pests that attack younger, less established trees have also increased, particularly infestations by pecan bud moth and ambrosia beetles. This circular summarizes the pertinent insect pests that attack young, non-bearing pecan trees, including key details on their biology, injury, monitoring, and management. This information should be helpful to both new pecan growers and experienced growers with newly established orchards.
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AP 130-2-10
2024 Fruits and Tree Nuts Outlook
1. High prices for peach producers helped a strong producer price index in the 2022–2023 crop season. The PPI is expected to stay strong in 2024.
2. Favorable prices came from production shortages, caused by bad weather in Q1 of 2023 that devasted the Georgia and South Carolina peach industries.
3. Citrus experienced the lowest production recorded in 50 years, and growers now prefer fresh market citrus instead of processed.
4. For blueberries, the newly signed memorandum to export 800 tons to the EU market will help maintain strong prices in the 2024 crop season.|
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Accurately distinguishing insect pests from beneficial arthropods is a critical component in the implementation of an effective and sustainable pest management program. This circular provides a succinct and practical summary of natural enemies commonly found in pecan orchards in the Southeast U.S.
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As pecan trees grow in an orchard, their tree canopies encroach upon one another, causing excessive shading, which can increase alternate bearing intensity and reduce tree health and orchard profitability. Historically, limb pruning and tree removal have been the most common methods of dealing with this problem, particularly in the low-light environment of the southeastern United States. Mechanical hedge pruning has been used successfully in high-light environments to mitigate the effects of orchard shading and has become the standard method used for this purpose in the arid production regions of the western United States. The southeastern United States is a relatively low-light environment, exhibiting significant cloud cover and atmospheric water vapor throughout the growing season, which can further limit sunlight in orchard systems. Mechanical hedge pruning offers a solution to this problem, which can also help minimize issues related to pecan scab, hurricanes/tropical storms, and alternate bearing.
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