Through the 1980's in every Canadian province east of Saskatchewan, except Nova Scotia and Prince Edward Island, chemical insecticides are sprayed from the air onto the forests to combat the spruce budworm and other forest insects. The focus is on the province of New Brunswick whose spraying began in 1952. It explores who both sprayers and anti-sprayers are, the role of government, the economics and the health issues surround the aerial application of insecticides.

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