Bava Batra 26: When the Wind Blows the Chaff

In the case of damage by chaff - when winnowing the wheat. Is that the wind's fault or an individual's fault? Plus, another new mishnah: how close to the neighbor's property must one plan one's tree? What about one who wants to do something that might encroach on another's property? Perhaps we can infer from the Talmud's cases of consecrated property near private property.