Geosmithia-pallida

Guides

• Pseudopityophthorus pubipennis

  western oak bark beetle

  Pseudopityophthorus pubipennis, the western oak bark beetle, is a small bark beetle in the family Curculionidae. The species has been identified as a vector of Geosmithia pallida, the causal agent of foamy bark canker disease on coast live oak (Quercus agrifolia) in California. Previously considered a secondary agent, this native beetle is now associated with significant tree decline and mortality in urban landscapes across multiple California counties.

  bark-beetlevectoroak-pestCaliforniaGeosmithia-pallidafoamy-bark-cankeremerging-diseaseurban-forestry