Saving My Ash Tree

I embarrassed myself in a meeting recently. A group of us were gathered to plan the upcoming urban tree conference (November 1st and 2nd; details soon) being sponsored by the Ontario Urban Forest Council and the Toronto Botanical Garden. As we discussed topics, I found that all I could think about, and all I wanted to talk about, was the gigantic and beautiful ash tree in my front yard--threatened by emerald ash borer! Here I was with a group of very knowledgeable tree people, so I couldn't help by ask at every turn: "Yes, but what about my tree?!"

Emerald ash borer is in Toronto (having already wiped out almost all ash trees in Windsor), and every ash is threatened. I don't know if mine is infested (there are no visible signs, yet), but it could be any day. There are infestations just 4 kilometres away from my tree. Apparently there's a treatment available, and I plan to check into it. My tree, technically, belongs to the city, so I'll start with them. I despair at the thought of losing this fantastic giant (40 feet plus), whose canopy shades three houses.