The polyphagous shot-hole borer, a tiny beetle that is killing mature trees, has been detected in four suburbs outside the Perth quarantine zone, sparking concern the invasive pest is spreading. WA Minister for Agriculture Jackie Jarvis said the detection of the borer beyond the boundaries of the quarantine zone, within which DPIRD aims to eradicate the beetle, was "incredibly concerning". …
PORTLAND, Ore. — Forestry officials in Oregon said Monday that an invasive beetle known for decimating ash trees throughout North America and Europe was recently discovered west of Portland. The Oregon Department of Forestry said the iridescent green emerald ash borer is considered the most destructive forest pest in North America and had been detected in 34 other states before …
