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First report on the Dutch elm disease pathogen Ophiostoma novo‐ulmi from Latvia |
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| Authors: | Ilze Matisone Krist ne Kenigsvalde Astra Zauma Nat&#x;lija Bur&#x;evi a Ilze &#x;&#x;epste Roberts Matisons T&#x;lis Gaitnieks |
| Institution: | Ilze Matisone,Kristīne Kenigsvalde,Astra Za?uma,Natālija Bur?evi?a,Ilze ??epste,Roberts Matisons,Tālis Gaitnieks |
| Abstract: | During 2017, Dutch elm disease was investigated on 67 Ulmus glabra and 29 Ulmus laevis samples from 28 sites in Latvia. The presence of Ophiostoma novo‐ulmi was detected in 61.2% of the samples from U. glabra and in 34.5% of the samples from U. laevis. In 11% of cases, hybrids between subsp. novo‐ulmi and subsp. americana were identified, particularly in the sites in the southern part of Latvia. This study presents the first verified record of Ophiostoma novo‐ulmi and its subspecies in Latvia. |
| Keywords: | eastern Baltic region fungal pathogens Ophiostoma subspecies Ulmus spp |