NYS Department of Environmental Conservation
“Green” vs.
“Red” Fanwort
•Different Fanwort Genotypes Exist- Physiological and Response Differences
•Red Fanwort More Commonly Found in Southern Climates
•Green Fanwort More Commonly Found Growing in Colder Water
•Recent Studies Suggest Variable Response of Red and Green Fanwort to Herbicides
•Green Fanwort Sensitive to Fluridone at 10-20 ppb
•Red Fanwort Sensitive to Fluridone at 5-10 ppb
•Yaphank Lakes Fanwort Appears to be “Green” Fanwort
