Citrus trees in “old flush” need to be watched for Asian citrus psyllid

In ARS News

by Dennis O’Brien, Agricultural Research Service

A U.S. Department of Agriculture (USDA) entomologist is providing citrus growers with much-needed guidance about the best times to use insecticides to control Huanglongbing (HLB), or citrus greening.

HLB has cost Florida citrus growers an estimated $1.3 billion since 2005. The disease is caused by a bacterium spread by the Asian citrus psyllid, which feeds on leaves of infected trees and carries the disease from tree to tree. Insecticides are currently the best option for controlling HLB. Continue reading