Volume 51 Number 3 Article 33
Year 1997 Month 7
Title: Performance of 14 Pecan Genotypes in South Alabama
Authors: M.L. Nesbitt, W.D. Golf and N.R. McDaniel
Abstract:
Baldwin and Mobile Counties in Alabama lead the state in pecan production.
The climate of these two counties, which
border the Gulf of Mexico, is typical of
other coastal regions in the southeastern
United States, with high annual rainfall
(165 cm), high humidity, and warm temperatures throughout a long growing sea
son (270 days). This climate promotes the
development of pecan scab (Cladosporium
caryigenum), the most damaging
pecan disease.
Pecan growers in south Alabama must apply 8 to 10 fungicide
sprays throughout the growing season on
most commercial pecan cultivars to provide adequate protection from this disease.
Additionally, cultivars must have at
least a moderate level of genetic resistance to scab to be successful.
Cultivars
like 'Tejas' and 'Wichita' that have poor
resistance to scab are not productive in
this region, even with a full season fungicide program.
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