We have 3 small dogs and since they play with each other, we do not want to use any poisons on their skin.
We learn to be aware about thicks and white dogs with thick fur make it easy as thick has to walk on the top for a moment before it finds a place - usually on the belly or behind ear where it can go deep to the skin.
Where we live - with high population of wild animals we had 1 hr hiking that generate about 15 catch thicks (on 3 dogs).
Than at home one more proper check.
Thicks are seasonal and unpredictable.
Last Sunday we spend over 2 hr in the park. Going over tall grass, narrow hiking path and no thicks.
Than we walk paved road down to parking lot and one dog catch a thick.