Serena Williams hits 157 consecutive weeks at No.1 this week, passing Martina Navratilova for the second-longest streak at No.1 in WTA history.
Answers.comÂ® is making the world better one answer at a time. A pecan tree can start producing pecans anywhere from 4 to 10 years if they are grafted. Ungrafted trees can take 10 to 15 years before producing pecans.
Some pecan cultivars are not profitable because of their susceptibility to insect pests and diseases such as pecan scab. Many seedling trees and cultivars also produce inferior nuts that may be unsuitable for sale or consumption. In order to successfully produce pecans in a home orchard, low-input management is a must.