Numbers Irrelevant Again

“Farming Today” story about two different committees of expert advice on crop spraying regulations disagreeing about a safe margin.

When I first heard the 5m margin legislated around the public access edges of farmers’ fields, I kind of assumed it was some statistical tolerance for spraying accuracy, and airborne drift and the like from crop dusters. But nothing of the sort; it’s purely psychological.

Differences of opinion are about the public perception of the margin. Too wide and the public will assume crop sprays (in general) are extremely unhealthy, too narrow and they will perceive them as low risk.

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