Insects (2021) 12 (5 - 393)

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Liina Jürisoo, Ilmar Süda, Ahto Agan and Rein Drenkhan (2021)
Vectors of Dutch elm disease in northern Europe
Insects 12 (5 - 393)
Abstract: Potential Dutch elm disease vector beetle species were caught with pheromone bottle traps and handpicked in 2019: in total, seven species and 261 specimens were collected. The most common was Scolytus triarmatus, but by percent, the incidence of Ophiostoma novo-ulmi was highest in Scolytus scolytus, followed by Xyleborinus saxesenii and S. triarmatus. We analysed the beetles' DNA using PacBio sequencing to determine vector beetles of Ophiostoma novo-ulmi. Ophiostoma novo-ulmi was found on six out of seven analysed beetle species: Scolytus scolytus, S. triarmatus, S. multistriatus, S. laevis, Xyleborinus saxesenii and Xyleborus dispar. The last two beetles were detected as vectors for Ophiostoma novo-ulmi for the first time. Previous knowledge on the spread of beetles is discussed.
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Database assignments for author(s): Rein Drenkhan

Research topic(s) for pests/diseases/weeds:
transmission/dispersal of plant diseases

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Xyleborinus saxeseni Estonia
Scolytus scolytus Estonia
Ophiostoma novo-ulmi Estonia
Scolytus laevis Estonia
Scolytus triarmatus Estonia