I have Groundhogs, Rabbits, Deer. Lots of all. They have consumed my entire garden in one night. I have 3 acres of land that I plant and one acre I thought if I left it for wild growing plants they would leave my gardens alone but that is not what is happening.
We had several mild winters and were over run with wild life. They were eating things that is poison. Some were dead in my wood area from eating poison plants that they never touched before. There are times I have 20-30 deer in my yard at one time.
I make and buy repellents. Bondi seems to be the best so far.
I have rubbed on the tips of my hosta Vicks vapor. I have green plastic and have rubbed the vics on the plastic and hang it in front of the plants they love the most.
I have a Bell and Howell solar animal repeller. It lights up and sends a sound that scares them away.
I have a 6' fence but they do jump that.
I have the wood pallets that if they walk on the deer slender legs go through when they fall down they turn and leave. The same thing with wire fencing that has spaces between they do not like to walk on that. These things I use in the path that I know they use to get to the garden after they jump the fence.
