I used this product unsuccessfully for fleas and ticks on dogs. It did not deter the fleas and ticks at all. However we had a sudden infestation of mosquitoes after a rare rain and they were tormenting my horses. I had this spray and tried against the mosquitoes. It was quite helpful, but it must be applied everyday.
I had high hopes for this product, but it didn't work -- at all. I even sprayed it directly on a young, Brown Dog Tick -- saturating it -- then placed the tick in a container over night. In the morning, I was dismayed to see the tick alive, well and active.