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Monitoring Abundance Of Ips Bark Beetles And Determining Related Tree Mortality In Arkansas And Texas, Chandler Stefan Barton
Monitoring Abundance Of Ips Bark Beetles And Determining Related Tree Mortality In Arkansas And Texas, Chandler Stefan Barton
Graduate Theses and Dissertations
The abundance of the southern pine engraver beetles, Ips avulsus (Eichhoff), I. grandicollis (Eichhoff), and I. calligraphus (Germar), was monitored with pheromone-baited traps in 2012 and 2013 in Arkansas and eastern Texas. Additionally, vehicle-based and comprehensive ground-based surveys were used to estimate and confirm the amount of dead and fading trees in each trapping site. Pine engraver beetles have historically been recognized as secondary invaders of healthy trees, but observations of pine mortality in Texas and Arkansas appeared to correspond with high population densities of Ips spp. Forest sites exhibiting subjectively high or low incidence of Ips-associated mortality in Arkansas …