Skip to main content
Back to Show
PBS News Hour

In Oregon, Swarms of Pine Butterflies Take Toll on Forests

In Oregon's Malheur National Forest, pine butterflies experience a population explosion for two to three years every three decades. Oregon Public Broadcasting's Oregon Field Guide series explores the snowstorm-like population surge that has stripped needles from 250,000 acres of trees.

Support Provided By
Season
November 14, 2024 - PBS News Hour full episode
57:46
November 14, 2024 - PBS News Hour full episode
November 13, 2024 - PBS News Hour full episode
57:46
November 13, 2024 - PBS News Hour full episode
November 12, 2024 - PBS News Hour full episode
57:46
November 12, 2024 - PBS News Hour full episode
November 11, 2024 - PBS News Hour full episode
57:46
November 11, 2024 - PBS News Hour full episode
November 10, 2024 - PBS News Weekend full episode
26:45
November 10, 2024 - PBS News Weekend full episode
November 9, 2024 - PBS News Weekend full episode
26:45
November 9, 2024 - PBS News Weekend full episode
November 8, 2024 - PBS News Hour full episode
57:46
November 8, 2024 - PBS News Hour full episode
November 7, 2024 - PBS News Hour full episode
57:46
November 7, 2024 - PBS News Hour full episode
November 6, 2024 - PBS News Hour full episode
57:46
November 6, 2024 - PBS News Hour full episode
November 5, 2024 - PBS News Hour full episode
56:58
November 5, 2024 - PBS News Hour full episode
November 4, 2024 - PBS News Hour full episode
57:46
November 4, 2024 - PBS News Hour full episode
November 3, 2024 - PBS News Weekend full episode
26:44
November 3, 2024 - PBS News Weekend full episode
Active loading indicator