Asian citrus psyllid (Diaphorina citri) seasonal movement and spatial distribution patterns

Asian citrus psyllid was monitored to assess movement patterns at several scales in Florida citrus groves.  Yellow sticky traps were placed within individual trees and blocks as well as between blocks in Hendry and Collier Counties which were collected and replaced at 14 day intervals for 26 months. At the most local level, sticky cards were hung in the canopy of individual trees at 4, 8, and 12 ft heights on both the east and west sides of the trees.  Two-sided sticky traps were also placed in a perimeter 30 feet outside of citrus blocks on wooden stakes at heights of 3 and 6 ft.  The two-sided sticky traps attached to wooden stakes provided an additional benefit of indicating direction of psyllid movement when captured.  Finally sticky cards were placed on tomato stakes between areas of high management low ACP populations and low management high ACP populations to look for effects of psyllid population and management strategies on patterns of movement.  Monitoring ACP movement at different scales is allowing characterization of distinct patterns.