An exceedingly rare population explosion of pine butterflies fills the Malheur National Forest with a virtual snowstorm in August. The mysterious outbreak may occur for 2 or 3 years and then disappear for 3 decades. The beauty extracts a price: the butterflies, while caterpillars, ate needles off 250,000 acres of trees.
First Broadcast: 2012
Producer: Vince Patton
Videographer/Editor: Michael Bendixen
Videographer: Nicholas Fisher
- Online: ForestPests.org