In Toronto, that optimal TreeAzin injection window was May 9-31, Kourniotis said. “For the most effective control of gypsy moth with TreeAzin injection, time is quickly running out in 2014,” ...

This year, for the first time, a pesticide is available for use against an invasive bug that has been slowly killing beech trees across Nova Scotia. Jon Sweeney, a research scientist with the Canadian ...

Injections of TreeAzin, Toronto’s only defence against an invasive beetle destroying its ash trees, aren’t working as well as hoped. Facing the destruction of all its ash within a few years, the city ...

The Town of Oakville is calling on residents with ash trees on their property to get TreeAzin injections before it’s too late. TreeAzin is a bio-insecticide intended to protect Oakville’s ash trees ...

Residents may spot some of Guelph’s trees receiving injections in the coming weeks. According to a post on its website, the City of Guelph will be injecting some municipally owned and shared ash trees ...