Thanks for all the input. I appreciate it. I just returned last night from 3 days of working around the property and the ponds. I ended up spraying a portion of the area that needed to be treated from shore with my 25 gallon spray rig. I was able to shoot about a 70' stream of material. The areas that could not be sprayed were treated by mixing a quart of Cutrine with 4 gallons of pondwater in a 5 gallon pail and spreading the mix into the pond from the rowboat. I mixed 5 batches and I stirred the water up pretty well with the oars in an attempt to disperse the product. I will be back up to check on the results in 2 weeks or so. Thanks again.