Harvester Liquid - Ideal for use on Small Bodies of Water or Small Weed Patches 

Harvester Liquid with diquat, is a broad spectrum, rapid-acting, contact herbicides. Successfully controls a broad range of submersed, floating and emersed weeds in still lakes, ponds, and drainage ditches. Great on land too! More - http://www.killlakeweeds.com/products/harvester-liquid