COLORADO SPRINGS BRANCH NEWS Douglas-Fir Tussock Moth (Orgyia pseudotsugata) Populations of this defoliating caterpillar surged in 2014 in Colorado Springs. You can see groups of partially or totally defoliated trees in many areas. Especially noticeable were Spruce trees with a distinctive orange colorations along the Academy Blvd. corridor and a large area of Gray Fir trees […]