Bark Beetles

The following information expresses no opinion regarding the efficacy of pesticides to prevent bark beetles, a long-term solution to bark beetle infestation, forest management practices or environmental or health effects pertaining to pesticide use.

1. What should consumers know about bark beetles?

• There are numerous species of Bark Beetles.
• Different Bark Beetle species infest different Tree species.
• Bark Beetles infest both healthy and stressed trees.
• Stressed trees are generally unable to effectively combat infestation.
• Infested trees cannot be effectively treated.
• Infested trees and debris should be removed to protect other trees from attack.

2. What should consumers know about treatment and prevention?

• Bark beetle preventive treatments may be labor and equipment intensive.
• Pesticides used must be labeled for use in preventing bark beetles on trees.
• Pesticides must be used according to the product Label.
• Preventive treatment is ineffective unless the pesticide is applied properly.
• Hire only licensed companies employing licensed applicators using the proper pesticide, application, and elevation equipment to properly perform a treatment. Check the Arizona Pest Management Division's Web site or call the office (see below).
• Obtain more than one bid for pest control services.

3. Where can consumers obtain more information?

The Arizona Pest Management Division (for licensing questions)
602-542-3578 or (800) 223-0618

Tom DeGomez University of Arizona Specialist
(928) 523-8385

Jeff Schalau University of Arizona Cooperative Extension
(928) 445-6590

Christopher Jones University of Arizona Cooperative Extension
(928) 425-7179

A licensed pest control operator or certified arborist.

University Of Arizona Cooperative Extension Bark Beetle Search