Written by Tom DeGomez, University of Arizona Cooperative Extension
Large-scale infestations of bark beetle can create havoc on landscapes, costing landowners thousands of dollars in damage and lost revenue. Based on historical records, bark beetle outbreaks are relatively short lived and are rarely sustained for long periods of time. However, high tree densities and expected changes in drought conditions, especially for the southwestern United States, may also alter the severity and extent of bark beetle outbreaks in many areas. The …