Goldspotted Oak Borer Infestation in Marshall Canyon
Summary
An invasive beetle has killed or infested nearly half the surveyed coast live oaks in Marshall Canyon. The county is applying for a $5 million state grant that could pay to treat up to 400 trees and remove 200 dead ones — decisions the city would still make. Residents can help by not moving oak firewood and reporting declining oaks.
At a glance
- Total mentions
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- Last 30 days
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Last discussed Aug 3, 2026.
Impact analysis
Mitigation is expensive — the county spent roughly $3 million helping Green Valley residents — but grant funding could shield La Verne from most direct costs.
Oak woodland lovers, hikers, and wildlife in Marshall Canyon, plus homeowners throughout the city whose oaks are at risk.
No one directly, though homeowners with infested oaks bear removal costs on private property.
Mentions & discussions (1)
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