Salvinia causes more than fishing problems. When running and approaching a drift line of the floating weeds, boat operators should keep a sharp eye out for barely floating logs disguised in the plants.

Salvinia is also hard on boat water pumps when idling through it. It will quickly clog an outboard motor’s water intake port. Rickey Lee doesn’t trust his warning buzzer to alert him of an overheating problem. 

He frequently peers over his shoulder to see if the motor’s tattletail is streaming water.