Fertilization is just one pecan management practice that helps maximize crop production and provides optimal tree maintenance. Proper fertilization encourages growth of shoots and leaves, which is essential for increasing crop load and decreasing tree stress.
Pecan trees exhibit a strong tendency to produce a heavy crop one year, followed by one or more years of little to no production. This may best be characterized as alternate bearing with irregular symmetry.
One of the most damaging diseases in pecans is pecan scab, caused by the fungus Fusicladium effusum. It infects actively growing tissue, such as stems, leaves and nut shucks, when temperatures are above 70 degrees Fahrenheit and relative humidity is above 90 percent.
For decades, scientists have used molecular markers for research and breeding purposes to increase yields and water and nutrient efficiencies as well as disease and insect resistance in agricultural crops. Recently, pecan scientists have looked at the development of new technologies used in this research and considered its use in pecan breeding and research.