Deer will eat almost anything they come across especially during spring. However, in a season when there is plenty of food, they love to eat narrow-leaf evergreens, especially fir and arborvitae.
Scare them away. Deer are frightened away by sudden movement and loud noises. You can hang wind chimes at the tree branches or shrubs in the garden or place wind spinners throughout your garden.
If there is one enemy gardeners have in common, it is the unwelcomed deer and the cousin rabbit. For many, these two are some of the most destructive animals you can ever come across.