Occurrence of the Nematode Bursaphelenchus mucronatus Mamiya & Enda 1979 (Nematoda, Aphelenchoididae) in Finland

1989

S. 271-277

1 Abb., 1 Tab., 28 Lit. Ang.

Unselbständiges Werk

200040727

A survey was conducted in Finland in 1988 to determine whether the pine wood nematode. Bursaphelenchus xylophilus (Nematoda: Aphelenchoididae) or the closely related species B. mucronatus would occur in Finnish forests. Dead or dying standing trees and timber of two conifer species, Pinus sylvestris (Scots pine) and Picea abies (Norway spruce) were analyzed for the presence of these nematodes. Monochamus spp. pine sawyers (Coleoptera:Cerambycidae) were also collected and inspected for the presence of dispersal fourth juvenile stages (dauerlarvae) of the nematodes. The species B. xylophilus was not found, but B. mucronatus appeared to be widespread in the country. Individuals of this nematode were found both from Scots pine and Norway spruce. Adults of two Monochamus species were found, M. galloprovinvialis and M. sutor. Only two of the examined beetles of the former species had dauerlarvae in or on their body.