Hydrilla, an invasive plant that can choke waterways, was first identified in the river in 2016 in Glastonbury.

Applications are expected to be made in Middletown, Chester, Lyme, Portland, Deep River, East Haddam and East Hampton.

Connecticut is among several states that uses the herbicide Diquat to combat hydrilla, an invasive plant species that grows ...

Officials said "misinformation" surrounding the use of the herbicide diquat to kill hydrilla in the Connecticut River has “triggered fear” among residents.

Connecticut is among several states that uses the herbicide Diquat to combat hydrilla, an invasive plant species that grows ...

Authorities in Connecticut planned to start spraying Diquat, a toxic chemical herbicide, into rivers and lakes after July 4, 2025. Rating: Context: The Connecticut River Hydrilla Control Research and ...