are they not eating the bulb or the green , or nothing at all? My old piece of property, the deer would absolutely not touch the turnips I planted. I tried multiple years, different varieties, and they would just not eat them. My buddy about 12 miles away couldn’t keep the deer off his turnips! His plot looked like pigs ripped through it, the deer hit it so hard.
On my plots, the deer always hammered the chicory and beans. So that’s what I planted there.