Several species of bark beetle including Southern Pine Beetle, Black Turpentine Beetle, Mountain Pine Beetle, Western Pine Beetle, and Spruce Beetle (all Dendroctonus species), and Ips Engraver Beetle, are known to attack and kill conifers such as pines and/or spruce.
Most of these beetles will attack both stressed (drought, nutrient deficient, excess moisture) as well as healthy conifers. Cream to red colored pitch tubes and/or boring dust will be present in the lower bole of the tree. Crowns of individually attacked trees will fade from green to yellow to red, followed by tree death over several weeks. Most of these beetles carry a fungus that serves as a food base for young larvae. The introduced fungus inhibits water transport and hastens tree mortality.
Bark Beetle Treatment
A trunk injection of TREE-äge®, TREE-äge® G4, and TREE-age® R10 will provide up to two years of protection from bark beetle damage. Preventive treatment is best, as trees with existing beetle infestations are unlikely to survive. In areas where beetles carry the blue stain fungus, it is recommended that a systemic fungicide such as Propizol® be added as a sequential treatment to eliminate additional stress from the fungus.
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©2020 Arborjet, Inc. Important: Always read and follow label instructions. Some crop protection products may not be registered for sale or use in all states or counties. Please check with your state or local extension service to ensure registration status. TREE-äge® Insecticide is a Restricted Use Pesticide and must only be sold to and used by a state certified applicator or by persons under their direct supervision. TREE-äge® is a registered trademark of Arborjet, Inc. In addition to the pests noted on the TREE-äge federally registered label, Arborjet supports a FIFRA Section 2(ee) recommendation for TREE-äge insecticide to control additional bud and leaf and shoot, stem, trunk and branch pests. Please see the section 2(ee) recommendation to confirm that the recommendation is applicable in your state.