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 ...

Question: I\’m new to California and worried about my navel orange tree, which has lots of large fruit. However, mushrooms are growing around the base and the bark is peeling from ground level up to ...

Diseases are among the major causes of tree mortality in both forests and urban areas. New diseases are continually being introduced, and pathogens are continually jumping to new hosts, threatening ...

Could a fungus found in the Torrey Pines State Natural Reserve be deadly for Torrey pine trees in La Jolla Shores’ Kellogg Park? Representatives of California State Parks have noticed that trees at ...