Sudden Oak Death has killed hundreds of thousands of tanoak trees in Oregon. How does this invasive pathogen spread? Where are the areas of concern? What species of trees and shrubs are affected? What are the symptoms? How ...
Norma Kline, Dan Stark, Sarah Navarro |
Jan 2021 |
Get more out of your smartphone! Free or low-cost digital mapping tools can help you track your path, measure a boundary, calculate area and pinpoint problem areas so you can find them again. You can even map vegetation via satellite imagery.
Norma Kline, Alicia Christiansen |
Mar 2021 |