Garden columnist Dan Gill answers readers' questions each week. To send a question, email Gill at gnogardening@agcenter.lsu.edu. I have a problem with my navel orange tree. It is producing two types ...

ARS scientists made a "sweet" discovery that may be important to solving a major problem within the citrus industry. Huanglongbing (HLB), also known as citrus greening disease, poses a serious threat ...

Orange trees are low-maintenance fruit trees and pruning is not overly complicated but is important to maintain the health and shape of the tree. Regular trimming will help guarantee a fantastic ...

It’s the mother tree, the tree from which all navel oranges in the United States trace their roots. Planted in 1873 by a Riverside woman, the parent Washington navel orange tree has lasted 148 years ...