What is killing off evergreens including boxwoods, firs, and rose bushes?
Just wanted to check to see if you know what is killing off evergreens - boxwoods, dwarf firs, as well as rose bushes. We went on vacation last week and our boxwood, 1 dwarf fir and rose bush were all dead or dying. If you can help that would be great.
Answer
We can't be sure what is killing off your specific evergreens, but these lists of common diseases and symptoms from the Penn State County Extension could be helpful:
http://extension.psu.edu/pests/plant-diseases/all-fact-sheets/boxwood-diseases
http://extension.psu.edu/pests/plant-diseases/all-fact-sheets/rose-diseases-outdoors
In addition, these blog posts and articles on boxwood and fir diseases might be useful, too:
http://plant-pest-advisory.rutgers.edu/were-baaackkk/
http://articles.mcall.com/2014-05-05/news/mc-douglas-fir-disease-20140505_1_firs-needlecast-trees