The militants were beating up truck drivers and extorting millions of afghanis from them daily, according to local authorities.
Residents of Darzab and Qush Tepa districts are returning home after Afghan security forces regained control of the area.
'We will spread the message of peace among our people from now on and will raise our voices for peace from the pulpit of our mosques,' one imam said.
Residents of areas previously under Taliban control expressed relief following the arrival of government forces.
Hundreds of women and women's rights activists united in Kunduz city to call on the Taliban to end the violence and join the peace process.
Afghan forces, aided by coalition air power, have stepped up operations to beat back the Taliban militants in Farah Province who are terrorising local civilians with Iran's support.
Anyone who provides the Taliban or ISIS with assistance will be punished by local elders, which could include expulsion from their homes and villages.
US officials displayed a collection of weapons that Iran supplies to militant groups in Afghanistan and across the Middle East, including anti-tank guided missiles provided to the Taliban.
Abdul Manan's death is a major blow to the Taliban in Helmand and other southern provinces, say officials.
Neighbouring countries propagate such rumours to create confusion among the Afghan people and to sow distrust among Afghans and their foreign partners, observers say.
A Taliban attack on November 14 led to the razing of the main bazaar in Burka District and the destruction of more than two dozen shops, leaving many locals desperate.
More militants are renouncing violence and joining the peace process as Afghan forces step up operations against the Taliban and ISIS, officials and local residents say.