Science for Citrus Health

The primary method to control the spread of the HLB-pathogen, carried by the Asian citrus psyllid (ACP), has been through frequent insecticide sprays. A more effective approach could be the use of chemical lures to trap and eliminate these insects. However, ACPs are not attracted to pheromones, the usual secreted chemicals used for such purposes. Instead, they respond to complex volatile organic compounds (VOCs) that resemble citrus plant smells. The challenge is that ACPs react differently to even slight variations in these compounds’ concentrations. Simple VOC mixes are not very effective, and managing the dispersion of multiple compounds is technically demanding. This research aims to refine the use of complex VOCs as ACP attractants, utilizing innovative materials for their dispersion.