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hile airplanes have been used to treat agricultural lands since at least 1921, helicopters didn’t come into use as crop dusters until they burst into the commercial arena shortly after World War II. In Switzerland, helicopters are the best way to access target plots on steep mountainsides mainly in the cantons of Vaud and Valais. Air-Glaciers SA, the local helicopter company based in Sion, flies in from above to service this hard-to-reach agricultural land.


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