Bark Beetles and Dying Conifers
Yavapai County Alert
Manage/Mitigate Conifer Tree Problems
Information still valid - February 2023
Forest Service Flyer (includes QR code to latest info)
Using Insecticides to Prevent Bark Beetle Attacks on Conifers AZ1380 and Addendum to AZ1380
Note: There is little or no data on whether or not Verbenone (anti-aggregation pheromone) is effective on Ips bark beetles. We still recommend the single tree protection strategies that are discussed in AZ1380.
Cypress Bark Beetle AZ 1316 (AZ Cypress, Leyland Cypress, native Junipers)
May 19, 2021 Backyard Gardener "Bark Beetles in Arizona Cypress and Junipers"
June 16, 2021 Backyard Gardener "Drought Impacts on Landscape Conifers"
June 21, 2021 Urban Tree Stress Alert - How to irrigate trees in our current drought condition