Tree specialists will begin treatments Thursday to protect trees in the park from Dutch elm disease, a fungus that kills elm trees.
The treatments involve injecting the trunks of the tree with Alamo, a fungicide with an active ingredient called propicanazole, according to a Boise Parks and Recreation news release. Once injected, the chemical is transported upward into the crown of the trees, where it can prevent the disease from gaining a foothold.
The treatment is aimed at Julia Davis Park’s core population of about 43 elm trees between Zoo Boise and the bandshell on the park’s western side, city forester Brian Jorgenson said. The process could take as long as a week.
Every year, the city loses a few elms to Dutch elm disease, which is typically introduced by elm bark beetles and spread by beetles and through root grafts of intermingling trees, Jorgenson said.
The elms to be treated have not been infected, he said.
“If they had Dutch elm disease, they would be dead,” Jorgenson said.
Boise Community Forestry staff members expect the treatments to protect the trees through summer 2015.
Community Forestry is a division of Boise Parks & Recreation and is responsible for the management of 42,000 trees in City of Boise parks and public rights of way. For more information, see parks.cityofboise.org or call (208) 608-7700.