TR20bh,
I have to ask, have you read all of the posts, it seems like I am repeating myself and the facts. Controlling very small areas is all that we are doing, of any type of vegetation. However, only controlling small areas of noxious, invasive, exotic species, like hydrilla, is not really control. Those types of vegetation are very aggressive and should be managed in an aggressive manner. Controlling the exotics, and trying to replace them with natives, is the best option. I don't believe you have enough knowledge of any of the current control methods on the Tennessee River System to make judgements about our efforts. Your information about sonar or any other fluridone brands, is just wrong. It does not sterilize the lake bottom and as I have previously stated, in the appropriate circumstances, it is one of the best products on the market. Fluridone can be used in a very selective fashion to control exotic species and leave the natives, as demonstrated time and time again. No one has or will mention grass carp in the Tennessee River System because of the fact that they are not very selective eaters. My statement about exotics not being beneficial long term is not opinion but fact, and I have all of the evidence to back that up. You view aquatic vegetation from one small stand point and don't see the overall picture. A byproduct of these reservoirs is the fishery, they were developed for navigation, travel, industry, hydro-electric power, water supplies, etc. The recreational aspects are all byproducts. When you look at a water body, try to view more than just that in which you are interested. Your apprehensions are misguided and just wrong. Eradication is not the goal and is virtually impossible, and you have never seen what "eradication" does to a lake. If the vegetation had been "eradicated" in chickamauga, it would not be there now and never would be again. That is the definition of "eradication".
Troy