Effect of Chipping on Emergence of the Redbay Ambrosia Beetle (Coleoptera: Curculionidae: Scolytinae) and Recovery of the Laurel Wilt Pathogen From Infested Wood Chips

摘要: Significant mortality of redbay trees (Persea borbonia (L.) Spreng.) in the southeastern United States has been caused by Raffaelea lauricola, T.C. Harr., Fraedrich, & Aghayeva (Harrington et al. 2008), a fungal symbiont exotic ambrosia beetle, Xyleborus glabratus, Eichhoff (Fraedrich 2008). This pathogen causes laurel wilt, which is an irreversible disease that can kill mature within few weeks summer. R. lauricola shown to be lethal most native species Lauraceae and cultivated avocado americana Mill.) States. In this study, we examined survival X. glabratus wood chips made from infested using standard tree chipper over 10-wk period. After 2 wk, 14 were recovered chips, whereas 339 emerged nonchipped bolts. was not found d postchipping indicating likely survive for long inside chips. contrast, persisted dead, standing mo. With large volumes wood, potential logs moved between states or across U.S. borders significant. Results demonstrated chipping wilt-killed significantly reduce number limit persistence important sanitation strategies aimed at limiting spread disease.