Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 9/11/2013
Publication Date: 10/15/2013
Citation: Hall, D.G., Stover, E.W. 2013. Plant resistance within the Rutaceae to Asian citrus psyllid [abstract]. Fourth Annual Citrus Health Research Forum, October 15-17, 2013, Denver, Colorado. Interpretive Summary:
Technical Abstract: USDA-ARS recently initiated research on host plant resistance to the Asian citrus psyllid. The psyllid is an important invasive pest of citrus in the United States because it transmits a serious disease of citrus known as huanglongbing (citrus greening). There is no cure for this bacterial disease. A strong management program for the psyllid is considered essential in the fight against huanglongbing, and consequently much research has been conducted in the areas of biological and chemical control. Little research had been published on plant resistance as a possible management tactic for the psyllid. Within the true citrus subfamily, the only major germplasm groups with pronounced resistance to the psyllid are the Trifoliates (cultivars of Poncirus trifoliata) and Trifoliate hybrids. Within these groups, two types of resistance to the psyllid have been observed: antixenosis and antibiosis. Traits conferring resistance could be exploited in a conventional or transgenic breeding program for commercial citrus. Traits conferring antixenosis may likely hold promise as attractants or repellents for the psyllid.