I have a severe deer problem even though I shoot them year round whenever I can see them. I have purchased two brands of the rotten egg stuff. One is by Bobbit and the other is Liquid Fence. They both worked fairly well and directions say that once sprayed it lasts a month. This is a LIE. Maybe 2 weeks max. At 20$ per quart it gets a tad pricey for my taste, so I decided to make my own. I get 18 eggs and set them outside for about 2 months or until they get rotten and I mix the eggs with a gallon of water in a gallon jug that has a secure top. Then I get 6 heads of garlic, peel the cloves and run through a food processor. I then put the finely chopped garlic into another 1 gallon jug with a top. I always grow superhot peppers such as Carolina Reapers or Ghost peppers, so I put 50 into a food processor and put the ground up peppers into another 1 gallon jug of water. Then about every two weeks I will mix 4 oz of each into a gallon of water. When you use this stuff you MUST use a strainer. I use one of those little hand held metal mesh tea strainers. I have found that if I spray every 2 weeks it pretty much keeps the deer away but since I am in my garden every day I can see if any deer has been around and if so I just spray with the garlic and the peppers.
P.S. When handling the eggs I don't touch them. All I do is leave them in the container and crack the end of the eggshell open and then turn the egg carton upside down over a big bowl and then pour the eggs into the plastic jug. Shake it up a lot before you add the water. You will have a few egg shells in it but when you strain the stuff you will remove them. Do this on a breezy day and stand upwind. After you spray the stuff the odor goes away quickly.
