Depending on where you are a flea/tick treatment may be a good idea. We frequent areas where there are often deer ticks, many which are Lyme positive. Due to the high percentage of Lyme positive ticks, I have both of my dogs on Nexguard. Others use the Seresto collars, Bravecto, etc. The topicals are not effective against ticks from what I've been told.
While the above are effective against fleas and ticks, they do not deter mosquitos, black flies, horse flies, deer flies and noseeums. I haven't found anything effective for these pests beyond protective clothing.
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