Juniper Bark Beetles
Phloeosinus serratus, Phleosinus sp.
Small bark beetles that attack weakened juniper and cedar trees, particularly during drought stress. Healthy trees can usually resist attack through sap production, but stressed trees are vulnerable to infestation and death.
Identification & Symptoms
What to Look For
Potential Damage
Lifecycle
Adults attack upper parts of weak, dying or dead trees in spring and summer. Prior to egg gallery construction, adults feed on healthy twigs, hollowing them until they break. Adults work in pairs to create egg burrows with eggs uniformly spaced along sides. Larvae feed laterally from galleries. 1.5 generations per year.
Professional Treatment Approach
Apply Imisol as preventive treatment to high-value trees during drought periods
Use Imicide for direct treatment of active infestations
Maintain adequate watering during drought stress
Improve tree health with Arborfos to enhance natural resistance
Remove and destroy heavily infested trees promptly
Address underlying stress factors (poor drainage, compaction, injuries)
Recommended Mauget Products
Imisol
Professional-grade treatment specifically effective against juniper bark beetles.
View Product DetailsImicide
Professional-grade treatment specifically effective against juniper bark beetles.
View Product DetailsArborfos
Professional-grade treatment specifically effective against juniper bark beetles.
View Product DetailsNeed Professional Diagnosis?
Our certified arborists can help you accurately identify tree problems and develop an effective treatment plan using Mauget's proven injection systems.