Extension Publications for Pecans
Drip Irrigation in Pecans
(B 936)
Research conducted on drip-irrigated pecans in Georgia over the past several years has shown that drip irrigation is highly beneficial even in wet years. The objective of drip irrigation is to supply each plant with sufficient soil moisture to meet transpiration demands. Drip irrigation offers unique agronomic, agrotechnical and economic advantages for the efficient use of water.
Pecan Varieties for Georgia Orchards
(C 898)
The most fundamental step in pecan production is the selection of varieties or cultivars to be planted in the orchard. Planting the wrong pecan variety can be a costly mistake, resulting in considerable expense. This publication includes descriptions and photos of pecan varieties suitable for planting in Georgia orchards.
Pecan Trees for the Home or Backyard Orchard
(B 1348)
Pecan trees are commonly found surrounding both urban and rural dwellings throughout Georgia. They can enhance the environment and provide additional income from the sale of nuts. This publication contains comprehensive information about pecan trees for the home or backyard orchard.
Herbicide Injury of Pecan Trees
(C 1146)
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.
Mouse Ear of Pecan
(C 893)
Mouse ear of pecan is a growth abnormality resulting from a deficiency of nickel in the pecan tree. Only recently, the discovery was made that mouse ear indicates a severe nickel deficiency. The disorder occurs most frequently on newly transplanted trees in established orchards, but can also occur on sites where pecan has not previously been grown.
Organic Pecan Production
(B 1493)
Organic food production is one of the fastest-growing sectors of the American food marketplace and is driven largely by personal health preferences and environmental ethics. Organic food sales in the United States rose from $13 billion in 2005 to $35 billion in 2014. Organic farmers are required to follow an ecological soil management program and are restricted in their use of chemicals. In order for a crop to be marketed as organic, it must obtain organic certification and maintain records of the production practices in use on the farm. See the USDA's organic certification information at the following website: https://www.usda.gov/topics/organic. A three-year transition period is required before the crop can be sold as “organic” and use the USDA certified-organic seal. Pecan production generates unique challenges to organic production methods in the humid Southeastern U.S. because it is an environment conducive to heavy pressure from insects, diseases, and weeds. Therefore, the foundation of any organic pecan production program in the Southeastern U.S. will be based on selection for pest-resistant cultivars.
Establishing a Pecan Orchard
(B 1314)
A well-planned, organized orchard will be more efficient, require less input and offer larger potential returns. Select the orchard location based on its soil type, drainage, water table and land topography. Straight rows in planted orchards make maintenance, irrigation and harvest easier. Tree growth and spacing requirements can also be anticipated for the early planting and subsequent orchard thinnings.
Commercial Pecan Spray Guide
(B 841)
This publication provides guidance for insect, disease, and weed control in commercial pecan orchards for 2019.
Budding and Grafting of Pecan
(B 1376)
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.
Clover Management in Pecan Orchards
(B 1360)
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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