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.

According to the EPA, diquat “rapidly adheres to soil particles,” which makes it unlikely to leach into drinking water.

Locals raised concerns over an herbicide used to kill an invasive aquatic plant in Connecticut rivers and lakes.

The U.S. Army Corps of Engineers will start injecting diquat dibromide, an herbicide banned in the European Union, into ...

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

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

Lake Mishnock is a hidden gem in West Greenwich. But if you look closely you'll find a dangerous opponent that's capable of ...

Not only was the weed found to be hydrilla, but DNA testing revealed it to be a genetically unique strain not known elsewhere. In the years since, hydrilla has spread explosively to cover more ...

The suspected culprit, hydrilla verticillata — or as it is commonly known, hydrilla — is generally considered by scientists to be among the most problematic of aquatic weeds.

The other concern with hydrilla is that it currently seems to be impossible to completely kill. Herbicides would kill the plants for a time, but they would reappear the next year.