Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 2/13/2015
Publication Date: N/A
Technical Abstract: The Asian Citrus psyllid, Diaphorina citri, as a vector of the bacteria causing citrus greening, is considered one of the most important citrus pests globally. Movement of infected psyllids onto uninfected young citrus remains a key concern for the maintenance of citrus production. Attraction of dispersing psyllids is the foundation for the use of colored sticky traps surveillance by sticky traps. Conversely, the use of UV-reflecting mulch provides protection of young trees from infestation. Detailed knowledge of the visual system of these insects can provide the basis for enhanced sensitivity by surveillance traps and a better understanding of the potential for visual cues as repellents. Using electroretinograms, the spectral sensitivities of male and female citrus psyllids were determined. Regions of maximal sensitivity were matched by theoretical pigment absorption curves to determine the composition of photopigments present and related to behavioral responses of psyllids. This information can be used to enhance visual surveillance traps effectiveness and optimize use of visual deterrents.