Plant Parasitic



Webmaster: Daniel Snyder

Last Edited: May 30, 2002


Genus Bursaphelenchus

The Pinewood Nematode

Important species: B. xylophilus

  • hosts include at least 21 pine species, localized problem in US
  • imported into US from Japan (Japanese pines highly susceptible)
  • Pinewilt disease complex "PWDC" nematode vectored by cerambycid beetles (Monochamus) and feed on both plant cells and on fungus (Ceratocystis spp.)
  • associated with host tree disrupts vascular transport, rapid wilting of needles, foliage turns grayish then dies