The Bronze Birch Borer (Agrilus anxius) is native to the Pacific Northwest but due to hotter summers, soil compaction, or lawn mower damage, birch trees are becoming less resilient than in the past and more susceptible to the Bronze Birch Borer.
Signs that a birch is infested include:
Branch dieback
Canopy thinning
Extra sprouts growing on the base of the tree
“D-shaped” exit holes on the trunk
Bronze colored liquid stains on the tree trunk
Our partners at the Urban Forest Health Watch Lab (WSU Ravenholt Lab) are working hard to identify tree diseases and make sure the public is well informed about how to prevent spread and eventual tree failure.
To learn more, head over to: [ Ссылка ]
To help in their research join the iNaturalist page birch tree health watch: [ Ссылка ]
Check out our channel for more tree disease videos as well as videos on tree care. We are the Tacoma Tree Foundation, a nonprofit focused on educating, empowering, and supporting community greening efforts in the Greater Tacoma area, Pierce County, and the watersheds of the Puget Sound. Go to our website to find more educational content and learn how to get involved weather it be through an educational program or a planting one!
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