Abstract: A protective polyethylene canopy, in the order of 100 to 110 inches in width and approximately 1.3 mils thick, is placed over trellised grapevines and fastened by the disclosed tie downs at the respective canopy sides. To form the tie downs, the side edges of the canopy are gathered and folded back upon themselves at intervals up to 2 inches. Thereafter, tape, in the form of adhesive labels, is placed over the folded edges so as to capture the folded and gathered side film edges. The label and folded film is transpierced, typically by a worker using grape clippers holding attached twine. Once transpierced and threaded with the twine, the twine is tied to the label and the canopy material, and then secured at its remote end to tightly secure the canopy overlying the trellis and vines growing on the trellis.