NewsletterServing land managers and owners east of the Cascades.
Have you seen those round, ball-like growths on oak leaves? Or the fuzzy moss-like unusual structures on rose stems? These are the results of a tiny parasitic wasp called a gall wasp or Cynipid.
ArticleAre you one of the many woodland owners noticing continued signs of drought on your property? Drought impacts are complex; drought stressed trees become susceptible to insects and diseases that are naturally present (typically at low levels) in our woodlands. Take these four steps to help you identify what factors might be impacting your tree health.
ArticleTrees all over Douglas County are displaying signs of poor health. Most people are quick to blame insects, but while insects are almost always present in sick trees, they are rarely the underlying cause of the problem.
ArticleMany if not most “sick tree” problems can be traced back to underlying stresses that have reduced the tree's vigor, making it more vulnerable to diseases or insect pests.
ArticleExcessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.