This depend on what is normal in your area Cristian. What do other successful beekeepers near you do and what kind of treatment are you thinking to use?
Sometimes sugar roll do not find all the mites so also look carefully for any unhealthy bees or dead brood and perforated brood cappings.
Sometimes sugar roll do not find all the mites so also look carefully for any unhealthy bees or dead brood and perforated brood cappings.