Tree pest care

Asked January 18, 2019, 4:53 PM EST

I live in the foothills outside Denver, CO at ~7500 ft.elevation. Do I need to spray my aspen tress for Marssonina leaf blight? Also should I continue to spray for Mtn. Bark Beetle? I have sprayed for both in the past.
Thanks you

Jefferson County Colorado

1 Response

Thank you for your questions. I am sorry for the delay in getting you an answer. Here is information on the first: The options for mountain bark beetle are slim to none, per this Extension article: If you have other questions, I suggest you contact your county Extension office directly, and their info is here: Good luck!