Cedar Bark Beetles
Phleosinus species
Small bark beetles that attack weakened or stressed cedar and related coniferous trees. Adults are red-brown to black, shiny beetles ranging from 1/8 to 3/8 inch long. They create characteristic short, longitudinal egg galleries with little branching that become confused under heavy infestations.

Identification & Symptoms
What to Look For
Potential Damage
Lifecycle
Adults attack weak, dying, or dead trees in spring and summer. Working in pairs, they construct short longitudinal egg galleries. Eggs are uniformly spaced along gallery sides. Larvae feed laterally from the main gallery. 1.5 generations per year.
Professional Treatment Approach
Imisol treatments for trees under stress or showing early attack signs
Address underlying stress factors: drought, nutritional deficiencies, poor sites
Imicide applications during adult flight periods in spring
Arborfos treatments to improve tree vigor and resistance
Remove and destroy heavily infested dead material
Recommended Mauget Products
Imisol
Professional-grade treatment specifically effective against cedar bark beetles.
View Product DetailsImicide
Professional-grade treatment specifically effective against cedar bark beetles.
View Product DetailsArborfos
Professional-grade treatment specifically effective against cedar 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.