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Milwaukie urban-forest staff flags emerald ash borer threat, urges assessment rather than wholesale removal
Summary
New urban-forest staff warned the emerald ash borer could kill nearly all untreated ash trees and urged Milwaukie to inventory and assess trees before choosing between large-scale removal, targeted treatment or replanting to protect canopy goals.
Alfred Mosali, the city's newly introduced urban-forest field staff, told councilors the emerald ash borer presents a serious threat to ash trees and urged the city to assess its inventory before pursuing removal or treatment options. "The beetle will kill 99.9 something percent of ash trees that are left untreated," Mosali said, noting associated fungal issues that can make trees brittle and difficult to remove safely.
Mosali told councilors several cities initially responded to the pest…
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