March 20, 2018

Rock Snot

The invasive alga ‘didymo’ has been found in Arkansas in portions of the White River system and the North Fork of the White River.

To prevent the spread of ‘Rock Snot’ please follow the following procedure:


Remove all visible clumps of algae and plant material from fishing gear, waders, equipment,  water shoes and sandals, canoes, and kayaks and anything else that has been in the water.


Completely soak all your gear in one of the following:

  • 2% household bleach solution (1/3 cup per gallon water)
  • 5% saltwater solution (1 cup of salt per gallon water)
  • Solution of  Hot Water with Dishwashing Detergent.

Please make sure this includes waders, wading boots, flotation devices and any other soft items.


Allow any item that has been in contact with the water to completely dry.

The item should be exposed to sunlight and left to dry for at least 48 hours.


For more information contact the Missouri Conservation Department at (417) 532 4418