EAB Management Plan - City of Oshawa

Photo 1: EAB infested tree in Oshawa
2 Introduction
Oshawa is a responsible steward of the City’s urban forest and current forestry
management bylaws, policies and quality standards play a key role in maintaining the
City’s tree canopy through planting, maintenance, removal, and pest management
programs.
Ash trees are an integral part of Oshawa’s urban forest on both public and private lands.
The publicly owned urban forest occurs along streets and in park and open space areas.
Privately owned trees are located on residential properties, institutional and commercial
properties, and in privately held woodlots that are not under the control of the City. The
City provides forestry related information to residents however private tree maintenance is
the responsibility of the property owner.
The City of Oshawa has approximately 3,500 ash street trees and approximately 1,500
ash trees located within the City’s active parks. Ash trees are an important native tree
species. They are also a major component of woodlots, fence rows, and often grow along
stream banks and disturbed areas. Ash represents 10 – 40% of tree canopy cover in many
communities.
Emerald Ash Borer (EAB) is a non-native invasive insect that attacks and kills healthy ash
trees. This places all true ash species, Fraxinus spp., at risk. EAB was first detected in
Emerald Ash Borer Management Plan 5 January 2012
City of Oshawa