Drought was stated as what caused the trees' death, only dying pine trees were pictured. No mention of the boring insects that kill pine trees, was that omission intentional? No pictures of dying deciduous trees either. I have seen dead pine trees in peoples' yards where their lawn is nice and...
Browse Tree Care Resources
Displaying 1 - 10 of 45 resources
Curious about what goes into planning for a timber harvest? This overview can help prepare you to make informed decisions throughout the process.
Aug 19, 2019Limiting sudden oak death’s spread in southern Oregon has proved to be a success.
Aug 2, 2019It can take several years of drought to kill a large tree.
Found an insect in your tree? Chances are it's not a pest. Here's what to look for.
Educational event draws hundreds from woodland community in Clackamas County and beyond.
Nov 30, 2018OSU Extension expert busts myths about taking care of Christmas trees.
A properly pruned tree looks as natural as possible; the tree’s appearance reflects its fundamental form and character. The pruner must be sensitive to maintaining this structural integrity, in addition to knowing a bit about tree biology and proper pruning principles.