Book 30, Question 130
What do boaters do to stop hitchhikers?
Small plants, snails, and larvae can hitch a ride on boats, trailers, and fishing gear and then spread to new lakes.
The Clean, Drain, Dry steps help: clean off plants and mud, drain all water from the boat, and dry everything before moving to another lake. Following these steps takes only a few minutes and protects lakes from invaders.