How to make and use your own deer repellent

Garden sprayer (or large spray bottle)
Warm water (1 gallon)
Eggs (3)
Milk or yogurt (3 tablespoons)
Crushed garlic cloves (3)
Cayenne pepper (3 tablespoons)

Step 1: Blend all ingredients with 2-3 cups of water in a blender. Strain that mixture into a gallon jug, add the remaining water and seal.
Step 2: “Ripen” the mixture at room temperature for 24 hours. Yes, it will be stinky! Transfer to garden sprayer or spray bottle(While the homemade deer repellent can be used immediately, it will be more potent if left to ripen )
Step 3: Spray the solution liberally after morning dew or any rainfall has fully dried. Make sure to spray the entire plant, leaves, stems, fruits, and all. Don’t worry, it won’t harm your foliage, just make it smell and taste bad to foraging deer. Milk products contain a sticky protein called casein to help the homemade deer repellent cling. Once dry, the odor will be undetectable to humans but still unpleasant to ruminants. And should any stubborn invaders go beyond a sniff to a taste, that cayenne pepper will deliver a burning warning sure to turn them off!
Repellents (like this one) that contain garlic and egg solids often work effectively against not only deer, but other destructive garden interlopers as well—rabbits, skunks, groundhogs, and even some birds, such as crows.
from bob vila