I'm not crazy about using any chemicals but fleas,ticks and Lyme disease are pretty scary issues also. I struggle with this a lot but we have tons of deer around (we live on a tree farm) and ticks are such a problem that I really think it's necessary. I chose not to vaccinate for Lyme on the recommendation of my breeder because of the low effectiveness and reaction rates of the vaccine so it kind of puts me between a rock and a hard place. :
I just don't know what to do. Risk the half dose and not be protected or apply it all and risk that he gets sick
I trust my vet but jeesh I still worry....