Court rules pesticide drifting onto organic farm constitutes trespass. Oluf Johnson's 1,500-acre farm in Stearns County is an organic island in a sea of chemically treated corn and soybeans... Improperly applied pesticides repeatedly drift over from neighboring farms, often with dire consequences for Johnson. But now, thanks to a new court ruling, he and other farmers can sue to recover their losses. Letting damaging chemicals cross property lines is trespassing, the Minnesota Court of Appeals ruled on Monday. Moreover, since those pesticides made his crop unsalable in the organic market, Johnson is entitled to damages from the company that applied it, the Paynesville Farmers Union Cooperative Oil Co., the court said... And that could go for any farmer whose crop is made inedible by someone else's chemical spray and even homeowners whose property has been damaged by a neighbor's overuse of RoundUp, legal experts said.