----- Original Message ----- From: "Tom Barrett" <[log in to unmask]> > If bees travel say 2 miles, then they forage in a circle, the area of which > is specified as PI multiplied by R squared. > > This ends up as 8038 acres - (3.14*(2^2)*640) (640 acres in a square mile) Tom I think that you have to make that at least 3 miles - and packers here are specifying 6 miles to avoid GM crops. That gives 72391.68 acres! Peter Edwards