Linking tree growth rate, damage repair, and susceptibility to a genus-specific pest infestation

作     者：Kayla N.Boyes Kathryn G.Hietala-Henschell Alexander P.Barton Andrew J.Storer Jordan M.Marshall 

作者机构：Department of BiologyPurdue University Fort WayneFort WayneIN 46805USA School of Forest Resources and Environmental ScienceMichigan Technological UniversityHoughtonMI 49931USA 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2019年第30卷第5期

页      面：1935-1941页

核心收录：

学科分类：09[农学] 

基　　金：supported in part by the Purdue University Fort Wayne Honors Program the John Z.Duling Grant Program from the Tree Research and Education Fund 

主　　题：Agrilus Ash Dendrochronology Emerald ash borer Fraxinus Invasive species 

摘      要：Pest preference and subsequent susceptibility of a host individual is likely related to previous growth patterns in that *** ash borer(Agrilus planipennis Fairmaire)is a pestiferous beetle introduced to North America from *** all species of ash are susceptible to attack,some individual trees appear to survive *** selected ash trees in southeastern Michigan,collected cores and categorized trees as high tolerance to emerald ash borer attack(high overall health,low crown dieback),low tolerance(low overall health,high crown dieback)and intermediate tolerance(in-between the other categories).We artificially wounded trees and measured wound closure after 3 *** width indices were not correlated between high and low tolerance *** slopes comparing growth and years were significantly different between the three tolerance categories,with high tolerance trees having the steepest *** closure was greatest in high tolerance *** tolerance trees demonstrating more rapid(steeper regression slope),consistent(lower variance),and effective(greater wound closure)*** vigorously growing trees likely had more capacity to repair damage caused by emerald ash borer,leading to healthier trees in our *** previous host growth patterns to health may have implications related to identifying individual trees potentially tolerant to attack.