Ticks depend on where you live or hike(often). I have never had a problem with ticks. Fleas are active from about March to November and dogs are treated during those times. I have never had a problem with fleas either.
Misty- Samoyed Mix, Tannor- Golden Retriever CGC
Robyn- GSD CGC, TC, Midnite-GSD CGC,TC, Brennan-Golden Retriever CGC, Batman-Husky/Greyhound , Apollo-GSD