New attacks from Mountain Pine Beetle have been found in Scotch, Pinon, and Mugo pines throughout the Denver metro area. I have personally found trees that were attacked in Denver, Lakewood, Arvada, Aurora, Cherry Hills Village, and Englewood. Many of the attacks on Scotch pines have been unsuccessful in producing larva, but this can quickly change if trees become stressed from other factors such as drought or storm damage. Monitoring and quick responses are extremely helpful in containing epidemic pest outbreaks. The infamous nature of this insect in Colorado should further reinforce the need to be aggressive in fighting Mountain Pine Beetle. Please let us know if you find possible hits on trees and need help with identification.