One other thing I should mention is that milfoil is very suspectable to the chemical Navigate, much more susceptable than cootail. We have had very effective milfoil kills without ever using the full recommeded application rate.
One thing KC needs to look out for is the sudden disappearence of most of the weeds, this will throw the established predator prey balance out of whack very quickly. High densities of LMB will become very effective predators and out eat their small BG food source in a very short time if their numbers are not thinned down. I have seen this happen more than once in our pond, trust me, lots of skinny big headed LMB are depressing to catch. As general rule of thumb, the harder the weeds get knocked down then the more pressure one needs to put on the harvest of LMB.
