if thats aluminum foil i see . ditch the foil and just paint flat white . or u can use a couple of first aid emergency blankets their mylar and reflect the most light.
Re: what keeps deer away from ur garden?
human hair go to ur local barber / or a homeboy thats down to shave their dome. and depending on how much hair u have aquired make a perimeter around the garden . but wouldnt suggest if u not prop 215 complient. u know dna. but it works wonders