I have been tasked with returning a pond to productivity. It is 100% covered with duckweed and watermeal. A few days with 6 inches worth of rain flooded the pond and sent watermeal and duckweed into a healthy stocked pond. Now, my task is to treat the larger with fish. (I'm using the PondRestore Ultra kit for Lakerestoration.com)

How do I maintain concentrations when we are receiving this much rain at any given time?

Also, any other advice as far as treatment, products and techniques are appreciated!

How big is/are the ponds ? You can use a contact herbicide which does not have to stay in the system.

Please send some our way!!!!!

The 100% covered pond is about 1.3 acres and about 13 feet in the center. The first time we dosed we applied fluridone using a subsurface method (mixing in a bucket and pouring it in) while paddling around in a kayak. The second treatment we were supposed to apply 10 days later was rained out multiple times.

That is the best treatment method (systemic) herbicide.

Contact herbicides like reward will also help.