Mulch material and method of making the same

Claim 1

In a sheet of mulch material comprising a sheet of polymeric material having openings passing therethrough and opposed sides one of which is to face the ground on which said sheet of mulch material is to be disposed, and a sheet of fabric material being coextensive with and being secured to said one side of said sheet of polymeric material, the improvement wherein each said opening of said sheet of polymeric material has a diameter no larger than approximately 0.50 of a millimeter and wherein said sheet of fabric material has a plurality of fiber means bonded together and defining spaces between adjacent fiber means with each said space being no larger than approximately 0.045 of a millimeter whereby at least four fiber means completely overlap each of the largest said openings of said sheet of polymeric material to tend to prevent plant growth through said openings, said openings of said sheet of polymeric material creating an open to closed percentage of each square yarn of said sheet of mulch material between approximately 1% open and 99% closed to approximately 10% open and 90% closed.