The City of Winnipeg has begun treating American Elm trees on private and public property with the chemical Dursban to control elm bark beetles, the carriers of Dutch Elm Disease.
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Eds. Note - Nine years ago, (2000), after the most extensive assessment of any chemical in its history, the U.S. Environmental Protection Agency (EPA) decided that Dursban may be more dangerous to people than once believed. It removed use of the pesticide, also known as chlorpyrifos, from products sold over-the-counter there.
A "sister" pesticide, Lorsban, containing the same active ingredient and with similar chemical properties, became a nightmare for a Manitoba family when it was sprayed on a nearby crop.
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