Your staking rewards are auto-harvested when you unstake DUSD.
To unstake DUSD:
- Visit the Earn page.
- In the Staking section, click Unstake.
- Enter the desired amount and click Unstake.
- Confirm the unstaking transaction in MetaMask.
- Wait till Transaction in Progress changes to The Transaction in Complete!.
Then click OK to go back to the Earn page.