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Acute Oak Decline (AOD) is damaging thousands of native oaks in the UK. The extent to which trees must be weakened or “predisposed” before they develop AOD symptoms is unknown. The role of the two spotted oak buprestid Agrilus biguttatus, a beetle strongly associated with the syndrome, also remains unclear. Using tree ring measurements (dendrochronology) and stable isotope analysis, the research aims to examine the stem growth and tree health histories of Acute Oak Decline (AOD)-affected trees, to look for evidence of predisposition to AOD, the impact of AOD on recent growth, and correlation with A. biguttatus attack.
Using tree ring measurements (dendrochronology):
Using stable isotope analysis:
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