Episode Details

Emerald ash borer has officially arrived in Washington state—first confirmed sighting in Vancouver—and it’s a tree-killing emergency. Native to Asia, this invasive beetle has already destroyed over 100 million ash trees nationwide since its arrival in Michigan two decades ago. All ash trees—including the only native species in the Pacific Northwest—are vulnerable. Experts warn cities could lose 90–100% of their ash trees within a decade if infestations take hold. With no proven way to eradicate them once established, officials are now focused on slowing spread: stop planting ash trees, comply with new firewood quarantine rules, and report any suspected sightings to the Washington State Invasive Species Council. Stay informed and act fast—this is a developing crisis with serious ecological and economic stakes.

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