How do quagga and zebra mussels spread from an affected water body to another water body?

Adult quagga and zebra mussels can survive out of the water for up to 30 days.

In the state of Washington you can be fined for towing a boat/trailer on the road with plant fragments attached.

If you boat on a lake infested with Eurasian watermilfoil or other aquatic weeds, what is the best way to prevent the plants from spreading somewhere else?

Cleaning and drying are necessary for which of the following?

If a bait well or a hold on your boat has water in it, but the water looks clean, do you still need to drain and dry the hold before launching your boat?