Didymo

Check, Clean, Dry

Stop the spread of didymo and other freshwater pests.

Didymo (Didymosphenia geminata) is an exotic alga that invades waterways.

To prevent the spread of freshwater pests such as didymo, always Check, Clean, Dry all footwear, bicycles, vehicles, fishing equipment and other items before entering, and when moving between, waterways.

How to Check, Clean, Dry

For more information and specific cleaning guidelines go to www.biosecurity.govt.nz/didymo. 

Check, Clean, Dry for trampers

When you are out tramping, avoid potentially spreading freshwater pests such as didymo along the way.
 
Follow the specific cleaning guidelines for trampers.

View the information for trampers on the MAF Biosecurity NZ website (PDF, 366K). 

Clean, Check, Dry to help prevent the
spread of didymo and other freshwater
pests

Report didymo finds

To report a suspected find of didymo, contact MAF Biosecurity New Zealand: 0800 80 99 66.