diaphorina citri (hemiptera: liviidae) abundance in puerto rico declines with elevation.diaphorina citri kuwayama is the primary vector of huanglongbing, the most devastating disease of citrus. d. citri populations in puerto rico were monitored with yellow sticky traps on citrus trees or other psyllid host plants at different elevations, ranging from 10 to 880 m above sea level. trapping was conducted in march through may of 2013 and 2014 when psyllid populations usually are highest. population levels of d. citri, based on the trapping data, varied among the sites, and there was a ...201526470127
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