New pests threaten our native trees
Added December 10, 2015
Overview: Beginning in 1979, there have been a series of symposia held every 5 to 7 years...
Added July 15, 2015
To water or not to water….an oak. That's the question. If only Shakespeare could answer...
From the LA Times: Tree-killing bug invades Southern California, with no answer in sight
From the Pasadena Star News: Sierra Madre works to contain tree-killing beetle
New Beetle Threatens San Diego from CBS-8 San Diego