Transmission of Pine Wood Nematode to Cut Timber and Girdled Trees

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Abstract
The pine wood nematode, B. xylophilus, was recovered from Austrian pine (Pinus nigra), jack pine (P. banksiana), and red pine (P. resinosa) logs 4 mo. after they had been cut from healthy trees that did not contain nematodes. B. xylophilus was found only in logs in which cerambycid beetles had oviposited. Similarly, only previously girdled jack pine that had been colonized by cerambycid beetles contained B. xylophilus. B. xylophilus can be transmitted to cut timber and dying trees, the nematode may be transmitted to dead and dying trees without necessarily being the primary cause of their death.