Seresto collar hack

We live in Tick Central here in Missouri. I thought it was bad in New Hampshire and Vermont, but it is a million times worse here. I have tried everything, and the only thing that works reliably for us are the Seresto Collar for Large Dogs, by Bayer. Yes, I wish there was an organic method that worked, but if there is, I haven’t found it.

Anyway, they work. However, I find them flimsy, ugly, and expensive. I don’t know if it’s just the way my dogs play, but they constantly got quite literally ripped off. At $35 a pop, I can’t just replace them all the time. They are supposed to last months, and when I could keep them on the dogs, they did.


I wanted some sort of collar that would hold them, to give them more strength, and this is what we came up with. Frank used a tool called an emasculator or bander (Neogen 2008 Econo Castration Bander) to attach the Seresto collar to their regular collar with the little rubber bands.

Before and after

It works really well. I have to attach the collars a little more tightly than I did before, but that’s the only downside. And as a bonus, the large size has enough material for two dogs, making it much more affordable.

To explain that photo a bit — the top gray collar is the Seresto collar itself, right out of the box.

The purple collar below has half of the collar attached to Stina’s regular collar.

The tool and little rubber bands are pretty cheap — around $12. And by being able to get two collars from one, that’s another huge savings.

9 thoughts on “Seresto collar hack”

  1. Thank you! I just tried it and it works like a charm. I was using small zip ties, but the plastic edges of the zip ties scrape. This is a much better solution.

  2. This is a great hack but I wonder if cutting a large collar in half would affect the efficacy of the flea and tick prevention. The collars are a certain size for a reason. My dogs are small so I buy the small collars, however I wonder if cutting the large ones would lessen the purpose of the Seresto collar.

  3. I believe the size specification has more to do with the weight of the dog and therefore the amount of pesticide in the collar, rather than the size of the neck of the dog. I had cut one too short for my dog and offered it to a friend but she pointed out that the small collar was also much thinner than the large one, not just shorter.


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