I used Frontline Plus for years with good success. But, as you say it only kills them when they attempt to attach. The ticks were so bad last fall that it was not uncommon to remove over a hundred after a run. So, I switched to the Seresto collar late last fall because of its supposed repellent ability. I have to say it does indeed seem to repel them and I have not found one tick attached. I put new collars on the dogs this spring at the first sign of tick activity and again it seems to do the job.
As an aside, my daughter-in-law is a vet tech and she states that they have had numerous cases where dogs had an adverse reaction to the Seresto collar. So, if you switch be on the lookout for problems. I have had none.
|