Mountain pine beetle has a one-year life cycle in Colorado. In summer, adults leave the dead, yellow- to red-needled trees in which they developed.

A non-profit organization has created 30 clones of a windswept white pine tree in Killbear Provincial Park that has attracted ...

Lily Khadempour, Valerie LeMay, David Jack, Jörg Bohlmann, Colette Breuil, The Relative Abundance of Mountain Pine Beetle Fungal Associates Through the Beetle Life Cycle in Pine Trees, Microbial ...

Most of the affected trees were white pine. Fortunately, this type of yellowing is a natural part of the pine tree life cycle. White pines that died from drought generally turned a golden brown color.