1. <italic>Cryptostroma corticale</italic> (Ellis & Everh.) P. H. Greg. & S. Waller causing sooty bark disease in British Columbia, Canada.
- Author
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Tanney, Joey B., Feau, Nicolas, Shamoun, Simon F., Kope, Harry H., Dicaire, Annie, Drugmand, Ben, Walker, Jessica, Burlakoti, Pragyan, and Joshi, Vippen
- Subjects
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SUGAR maple , *REPORTING of diseases , *SYCAMORES , *MAPLE - Abstract
AbstractSooty bark disease is an invasive disease causing significant mortality of sycamore maple (
Acer pseudoplatanus L.) in Europe, where it is emerging due to increasing drought and heat events. The causal agent,Cryptostroma corticale (Ellis & Everh.) P. H. Greg. & S. Waller, is a fungus endemic to the Great Lake region in eastern Canada, where it does not appear to cause disease within its natural host range (e.g. sugar maple,Acer saccharum Marshall). Sooty bark disease was reported causing mortality on sycamore maple and additional species within Washington State beginning in 2017. In summer 2022, sooty bark disease was found on a sycamore maple near Vancouver, representing the first report of the disease and causal agent within the province of British Columbia (BC). In this study, we identify the causal agent of sooty bark disease by morphological and molecular methods and confirm its pathogenicity in a controlled growth chamber experiment fulfilling Koch’s postulates on sycamore maple.Cryptostroma corticale has so far been found in BC on sycamore maple, Norway maple (A. platanoides L.) and bigleaf maple (A. macrophyllum Pursh). Sooty bark disease has been previously shown to increase in severity and occurrence under drought and warm conditions; we anticipate rising sooty bark disease cases as BC experiences increasingly frequent and extreme summer droughts and heat events. [ABSTRACT FROM AUTHOR]- Published
- 2024
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