I don't like any of that stuff. I don't like putting chemicals of any kind on them. But, I have heard some bad things about Bio spot. I would probably go with Frontline Plus if you have that many ticks.
I have a 100lb lab x and a 40 lb pit x. Both had a VERY bad reaction to it. The labx shook for 2-3 days and had trouble walking and the pitx couldn't lift her tail for a week. Spend the extra $$ and be safe! For fleas ( not ticks) I heard frontline can last for up to 3 months.
If you are scared about lyme disease, you should get the shot for your dogs. I would also spray/treat my yard for ticks and fleas. Frontline is a good product. I rely on diet for flea and tick prevention. They also have pills to prevent fleas. It's worked for me for years. I don't like chemicals either.
I have used it for 2 years on my Newfs without incedent. We live in a heavily wooded area where ticks are pretty common. I also use the Preventic tick collar on them. Needless to say, they were tick and flea free last year! However, each dog is different, and reacts differently, just like humans. One of our Newfs, Digit, had a pretty bad reaction (itching, redness, furr loss) to the K9 Advantix brand...I would ask your vet what would be good for your breed of dog. Hope this helps...
Thanks for the information I have ben usinf Frontline and it has worked very well but bio spot was much cheaaper so i ordered three month supply I will talk to the vet I rather thow the stuff away then have my labs sick Thanks for the information I got Lyme diesease from a tick and am now very concerened think I will get the shots for the dogs
Was told by a respected vet that the activve compound in Biospot breaks down in sunlight and will only last 2-3 days under normal circumstances, so when they claim it last 30 days it is not really true in that they test in a controlled enviroment! Stick with Frontline.