Deer Stopper Quart Concentrate

This past winter I was shocked to see all of my azaleas, white pine and half of an arborvitae hedge stripped bare. I had previously in another house, used some stinky repellent that smelled like rotten eggs, with mixed results. This spray has a strong peppermint oil fragrance so if some mist gets on your clothes, it is much better than smelling like rotten eggs. It does last a month. I put a chart up in my garage and keep one pump sprayer filled and ready to douse my garden from fall to early spring. It saved the remaining arborvitae that were not eaten at all. This winter I will be ready in advance. I also signed up for ‘subscribe and save’as this is something you don’t want to run out of while the deer are lurking around in winter months. I don’t seem to need to spray in the late spring or summer as there is enough food for the deer. Update 2/2026- with all of the snow I can observe to see where the deer have been at night. They are wandering through my yard but are not going near any plants that we spray monthly with this product. I have tried dozens of products over the year including homemade concoctions incorporating rotten eggs and by far this is the only product that I have had great success with and the peppermint smell is quite pleasant in case any overspray gets on your clothes

This totally worked in protecting my tulips from those damned deer. Using again next March-April for SURE. I couldn't smell it once it was applied. *** UPDATE *** I used it AGAIN this spring with success. But it's been rainy and I noticed that if I went 2-3 weeks between applications that SOME of my tulips were eaten by deer (and they left their souvenirs in my lawn)... However I increased application to 1 week increments and have not lost ANY MORE tulips in spite of even more rain. I am officially the only person on my block with any tulips that survived the deer and they look great. Another thought - this stuff goes a LOOOONG way. I am still using my initial 1 gallon mix that I made from the concentrate . . . in other words, I have not mixed more than 1 gallon of this stuff now in two years of spring application. I did notice that if you leave it in the gallon sprayer over the winter, it will start to clump and clog the sprayer inlet and other parts. I'm sure that's because of the rancid egg ingredients starting to curdle over time. It doesn't stink to me, it just smells slightly 'off' but that's the whole point anyway of this stuff. The rosemary oil definitely smells the strongest to me, so I don't find the smell offensive. To fix the curdling you could do one of two things: 1) REMOVE it from the gallon sprayer after the spring is over and you don't need to spray anymore... so you don't let it stay in over the winter, or... 2) pour the contents out of the gallon sprayer through some cheesecloth to strain the curdles out. Rinse the sprayer, pour the contents back in. Disassemble the sprayer wand, nozzle, and hose and clean them thoroughly. Reassemble. Problem solved. This isn't a defect of the concentrate, it's just my fault for storing it in the gallon sprayer for too long.

I grow daylilies which we dig and sell from our farm, and have many deer who like the blossoms. I've tried this product for two years but couldn't definitively say that it worked. But this year I think I can say Deer Stopper does work. We are open to the public for only a few weeks each summer and I applied Deer Stopper throughout this year's selling season. We never had more blossoms, and I found only slight evidence of deer damage, even though we experienced record rainfall for June.I sprayed starting the first weekend of June to the 4th of July weekend). I did have to spray about every ten days. I last sprayed around July 1st. The blossoms were great through the 4th weekend, but about a week later the deer decimated my blossoms. By mid July I had almost no blossoms. I wish I had continued to spray half of my plants so that I would have had a control group of plants to compare against the treated ones, but I think a fair conclusion is that Deer Stopper does work even through heavy rains, but for only about 10, not 30 days. I probably should give the product five stars because the devastation that occurred after I stopped spraying was so unexpectedly complete, but the manufacturers claim thirty days protection, a claim with which I cannot concur. Therefore, I subtracted one star, but the product DOES work, and works well. By the way, we have around 250 varieties of daylilies, in gardens spread over about 1/2 acre, so I'm not talking about just a few plants that were quite well protected by the Deer Stopper, I'm talking about almost 10000 plants that were protected.

Actually works for 30 days as advertised. We HAD 10-20 deer frequenting our backyard and constantly coming up to our house to munch on perennials. Sprayed Deer Stopper 1 and they actually changed their daily migration paths AWAY from our entire yard. Sprayed on flowers AND sprayed a perimeter on a fence around our yard, which they frequently jumped over to get the snacks in our garden. 2 months now and NOT ONE SINGLE DEER in our yard. Sprayed around (not on) my neighbor's tomatoes and they walked right by quickly, where in previous years they munched the plants into oblivion. I now treat every 30 days and after YEARS of trying other solutions, this one looks like the permanent solution.

I've bought many times. Its my go to repellent for the herd of deer that live in my yard. I've used the other awful smelling varieties. This has a good strong mint smell. And it works for several weeks... it's been about 4 now. I should probably re spray. ... The cost seems a lot higher than a few years ago.

This stuff really works. We mix up a sprayer full of it and just shake it up when we want to use it (it can sit a long time in our experience). It surely does stink (how could it not!), so be careful not to spray when it's the least bit breezy or you'll be smelling like the spray for the rest of the day. But the deer do not touch what I spray this on. We have a yard full of mostly things deer dislike (lavendar. etc.) because we live in the country and deer are quite prevalent. But I have about a dozen roses which they can and do mow down in one morning if I forget to spray. They do NOT touch them if I spray. It takes about 10 minutes, tops, to spray all the things I want them to leave alone, and I can forget about it for almost a month unless it rains a ton. So each. I've tried sprinkling various other products around the base of the plants, etc. and nothing has been nearly as effective as this. My mom has more hungry deer at her place, and she's tested spraying only some of the plants they like and they carefully avoid everything she sprays while they mow down everything she doesn't spray.

So I've used this stuff on my hastas, azaleas, and rhododendrons for two months this summer and not a single lost plant. The past 3 years, deer have eaten everything by the 2nd week of summer. Was it luck? Did the deer decide to eat my neighbor's plants instead of mine? I got my answer this week when my hastas bloomed flowers (I hadn't had them last long enough for me to see that before). Unfortunately, I had sprayed two weeks prior to the blooms coming out and the blooms were not protected by Deer Stopper. Just two days most of all my blooms were eaten by the deer, but the part I had sprayed remained. I was very glad that the deer had visited and decided to leave my plants alone, but still ate the blooms (because I hadn't protected them). I'm almost out of my first purchase and will be buying another once I finish next month. I haven't really written any reviews as I'm relatively new to Amazon, but this one has performed. I did purchase a professional sprayer to mix the Deer Stopper with water and spray with an 'automatic' wand that uses air pressure to keep the liquid spraying. I have a large yard and it typically takes me about 40 minutes to spray all of my at risk plants. Sometimes the spray gets on my hands and it is very stinky. I make sure to rinse out the sprayer immediately after use. I hope this stuff works for a long time as I've heard that after a while deer will get used to sprays.

The smell is not horrible. I spray before I go to bed and by morning the smell is gone. It does stop the deer from eating my plants (hostas) however, you do need to be diligent and reapply like every week and after it rains. The deer do get to a point they don't bother coming anymore but don't let your guard down cause they or others will be coming going forward.