Red Turpentine Beetle- Pink resin at base of pine
This small, red beetle is typically found on large, stressed pines. Interestingly, trees scorched by fire or injured from construction are most at risk of infestation. Stressed trees are the most suitable hosts for this pest.
Look for pinkish-red resin at the base of the tree. Small, red beetles may also be visible.
Adult beetles seek out stressed pine trees and lay egg clusters in chambers they’ve made within the tree. The larvae then tunnel beneath bark creating galleries that can girdle trees if extensive enough. More than 1 generation occurs each year.
These pests usually do minor damage and are more of indicators that other issues are present. However, the unsightly resin that appears at the base of trunks can be enough to warrant insecticide intervention. Repeated or heavy infestations also warrant insecticide intervention.
Cultural practices that increase the health of trees will limit attack from this beetle. Laying mulch or hay layers over the root zone of trees during construction will decrease root compaction, and reduce the likelihood of attack as well. There are preventative sprays that can be made before adults burrow into trees. Pyrethroids and carbaryl are effective spray treatments.