Ash Beetle and Prunus
I have heard that now that the Ash beetle has about devoured the ash trees, it is beginning to attack Prunus varieties. I note that we have 2 Kwanzan Cherries that began to die last year and are about finished now. If the Ash Beetle is possibly responsible, how can i find out for sure and what should be done about destroying them? Any special requirements re burning , etc., or may we just cut down and use for fire wood?
Baltimore County Maryland
The Emerald ash borer does not attack Prunus species and did not cause dieback on the cherries. There may be other reasons why your cherries declined such as poor planting techniques, drought, planting too deeply, poor drainage, too much mulch, etc. When subject to the above they can be susceptible to disease and insect issues such as borers.
Kwanzan cherry trees like full sun and are intolerant of poor drainage. Life span is about 15-25 years.
If the trees are dead, you can cut down and use for firewood. Do not store in the house. Here is our publication on Ornamental Fruit Trees http://extension.umd.edu/sites/default/files/_images/programs/hgic/Publications/HG93_IPM_Series_Orna...
Thank you sooo much. Truly comforting to know i was misinformed re; ash beetle and prunus. Otherwise can't imagine why the Kwanzan are dying;have been on location for 10-20 yrs, doing just fine.. good drainage, reasonable sun etc/, but maybe life is short, Enjoy while you can:) Cherry wood makes good fire wood as a consolation prize. Cheers!