Chara is an advanced form of algae wich is attached to the bottom by a "hold fast". There is no root system for nutirent absorption. Therefore all nutrients are absorbed from the water column. Chara is normally found in alkaline or hard water lakes. The plant is coarse and usually rough with calcium bumbs forming on the leaves preventing effective agacide results.
Copper at .01-.02 # per perimeter Foot should work well. Do not exceed 5 lbs of copper per acre foot in the treatment zone and do not treat more than 1/2 of the lake due to the drop in oxygen as the plant dies.
Here are some photos for your review...well I am not able to get them up on here. I don't know how yet. Go to the University of Florida's site:
www.ifas.com and you should be able to find a photo of Chara for comparison.
