Peter DiClemente spent his whole working life in the family lawn care business, mowing some of the same lawns his grandfather mowed in the 1930s.
But something nagged at him. More of his customers were voicing concerns about the pesticides he was applying to their lawns. DiClemente, of Newton, Mass., had young children and was worried about the effects of the chemicals on them.
Three years ago, DiClemente put his last flag in a lawn that read: "Caution: Pesticide Application KEEP OFF."
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