You can fix your Environmesh by sewing holes or tears using a strong thread like nylon or monofilament thread because it is equally strong as the netting. Enviromesh is a tough material, although larger animals can damage it like foxes or other wandering animals. It can also weaken and get damaged when not cleaned properly before storing after use. Enviromesh users can attest that this type of netting can be repaired or sewn when you need it smaller or larger. Garden netting like Enviromesh can be sewn by hand but can be taxing if you need to join huge pieces together. Sewing with a machine would be a better option. Sewing plastic netting can be slippery and may cause your machine to jam. When sewing a slippery fabric like Enviromesh, it would be a good idea to sandwich the netting in between two layers of paper and then stitch. After stitching, you can rip away the paper. You can also use a bias binding from an old sheet to make sewing easier. Sew the netting pieces in between the sheet binding to create sturdy edges.