Abstract: A flexible cutting member is provided for use with an associated line trimmer device. The cutting member is formed of a biodegradable plastic formed of a hydrophobic thermoplastic modified starch derived from corn, wheat, or a wheat/corn blend. A combination line trimmer and biodegradable trim line is further provided. Additionally, a method is provided for producing trim line for use in an associated line trimmer including providing a biodegradable plastic material and extruding the material through a die into an elongate cylindrical flexible cutting member.