Monofilament for mowing

Polylactic acid resin (A) and adipic acid ester plasticizer the sum of (B) as 100 parts by weight, 70-97 parts by weight of the polylactic acid resin (A) and 30 to 3 parts by weight of adipic acid ester plasticizer ( mowing a monofilament, characterized by comprising spun to become the resin composition blended B). A biodegradable, mowing resistance, breakage resistance, provides a mowing for monofilament excellent in wear resistance.