J. Tomminen 1992: The effect of beetles on the dispersal stages of Bursaphelenchus mucronatus Mamiya and Enda (Nematoda, Aphelenchoididae) in wood chips of Pinus sylvestris L. - Entomologica Fennica 3: 195-203.
The effect of the presence of beetle adults (Monochamus galloprovincialis, Acanthocinus aedilis, Rhagium inquisitor and Hylobius abietis) in Scots pine wood chips on the occurrence of the third (L(III)) and the fourth (L(IV)) dispersal stage of the nematode Bursaphelenchus mucronatus was studied. Possible infestation of the beetles with L(IV) of the nematode while being in close contact with the pine chips was also explored. Adults of M. galloprovincialis and A. aedilis contributed to B. mucronatus L(IV) formation in the chips. Callow adults of M. galloprovincialis were more efficient elicitors of moulting of L(III) into L(IV) than emerged beetles of the same species. Only M. galloprovincialis adults became infested with L(IV) callow beetles containing more nematodes than emerged beetles.