Picked up a horse trailer from a feller yesterday and while shootin' the breeze, I noticed a rail fence around his garden area and inquired how he managed to keep deer out with a fence like that. His place borders an alfalfa field with the forest 100 or so feet away...deer paradise, similar to my own situation. Like me, he'd tried playing a radio at night, without much success after the first few nights. He even tried something I'd tried, putting a motion detector light out there, with the same results I had, providing a handy light to the intruders. His simple solution which has worked for two years? One of those motion detecting singing fish that cranks around and sings at ya! I guess it has about a five song repertoire. He can adjust if for sensitivity, so there is no routine that the deer get accustomed to. They watched as the first deer nearly jumped out of his skin at the sight and sound of a fish begging, "Take Me To The River", and haven't had any damage since. Organic farming at it's best.