The VINE Blog

Survey of the pathogen of Alternaria late blight reveals different levels of carboxamide fungicide resistance on the main pistachio producing regions of California

by | September 5, 2018

By Paulo Lichtemberg, Ryan D. Puckett, Yong Luo, Lorene Doster, and Themis J. Michailides originally in California Agriculture

Alternaria late blight (ALB), caused mainly by the fungal pathogen Alternaria alternata, is an important pistachio disease that causes severe tree defoliation and fruit shell staining. Its control relies on multiple fungicide sprays, including carboxamide fungicides.