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A Threat to San Bernardino County Citrus
A plant disease that kills citrus trees has been found in California. The disease, called Huanglongbing or citrus greening disease, isn’t harmful to humans, but it is fatal for citrus trees and has no cure. The disease is spread by a pest called the Asian citrus psyllid as it feeds on citrus tree leaves. Until researchers find a solution, California homeowners who enjoy growing fresh citrus fruit in their yards, and California farmers tending to $2.5 billion worth of citrus fruit trees must work together to protect their trees. Learn more about how to detect the pest and disease and protect California’s beloved citrus heritage.
Report Abandoned or Neglected Citrus Trees
For more information on the Asian citrus psyllid and recommended treatments, please visit the
County of San Bernardino Department of Agriculture/Weights and Measures