The OSU Research Forests plan to spray for invasive plant species, such as Himalayan blackberry, along the Highway 99 power line right of way and in Peavy Arboretum the week of September 28, 2020.

All treatment units will be sprayed using backpack sprayers.  Spray targets vegetation only (not road or trail surfaces).

During application, staff will be positioned at roads and official trails leading into spray areas to keep people away.  Peavy Arboretum will be closed for 24 hours after the treatment. 

Date of application, name of the herbicide active ingredient, and the industrial re-entry interval will be written on signs posted at entry points into each treatment area. Signs will remain in place for one week.

This herbicide application will be conducted in compliance with State and Federal regulations and under the supervision of a licensed pesticide applicator.  

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