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EMERALD ASH BORER (COLEOPTERA: BUPRESTIDAE) HOST EXPANSION; TRADING AN OPTIMAL HOST FOR ENEMY FREE SPACE?Olson, David G. 01 January 2018 (has links)
Emerald ash borer (EAB), Agrilus planipennis (Coleoptera: Buprestidae), is an aggressive invader from Asia that has killed millions of trees in North America. Recently EAB has been documented developing in a novel host, white fringetree, Chionanthus virginicus. I evaluated larval performance in two common ash species and white fringetree by infesting excised bolts with emerald ash borer eggs. In addition I evaluated several plant characteristics to determine which most influence larval development. I also conducted choice and no choice assays using the classical biological control agent, Tetrastichus planipennisi (Hymenoptera: Eulophidae), to assess its ability to locate larval EAB in the different host plants. I found significantly lower survival rates of EAB larvae in white fringetree compared to white ash, F. americana. Larval phloem consumption and larval growth were lower in fringetree than in both ash tested. In choice and no choice assays T. planipennisi failed to parasitize larvae in fringetree. Failure of T. planipennisi to parasitize larvae within fringetree has implications for the efficacy of this classical biological control agent. Coupled with the use of white fringetree as a reservoir host, the enemy free space provided to EAB through use of this alternate host may have repercussions for EAB invasion dynamics.
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Organic matter type affects growth and physiology of native plants planted above-gradeHanes, Scott Burton, Wright, Amy Noelle, January 2009 (has links)
Thesis--Auburn University, 2009. / Abstract. Vita. Includes bibliographical references.
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Preference, performance, and selection of historic and novel hosts by emerald ash borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae)Peterson, Donnie L. 17 December 2019 (has links)
No description available.
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