I live in Kitchener, Ontario, Canada and I wanted to know if people who spray pesticide on their backyard do they have to put up a Pesticide sign. The reason I asked is because There is a bike trail I like to ride that goes into the bush behind a row of houses and I think one of them might have been spraying pesticide so I was wondering if they needed a warning sign up because it is a fairly busy trail, and the house that I thought might be spraying is only a few feet from the trail.
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