A Changing Forest
Driving up the Sandia Crest Highway you may have noticed patches of gray, dead trees. Outbreaks of the Douglas-Fir tussock moth have occurred in canyons on both sides of the Sandias since 2004. The moth is a native of mixed conifer forests, often going unnoticed & causing little damage. Seasons of drought can stress conifer trees, making them more susceptible to insects & disease.
Its the Caterpillars
Large numbers of the tussock moth caterpillars can consume nearly all the needles on affected trees, causing death. In the Sandia Mountains, many Douglas -Fir & White Fir trees have died. Though the caterpillars did a lot of damage in just a few years, moth populations have since collapsed. Viruses & parasites attacked the moths, causing their numbers to decline.
Head Up!
Many trails in the Sandia are lined with standing dead trees. Please be alert when hiking as trees can fall. Stay safe & don't hike on windy days!
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