It nice of folks at SePro to tell you what went wrong so you could buy some more. It's a timed product no doubt, on certain applications. And yes, those nasty hydrilla tubers can sit there dormant in mud for years, hiding from the Fluridone. My best time is right when it starts to emerge from those tubers, when they are weakest. And you really cannot spot treat very well, as it must get to the desired ppm in the entire body of water and sit there for 45-90 days to do what it is supposed to do. It does close to nothing to Willows. I cut cut them down to the ground and paint stumps with Tri. As far as Chara, you almost have to copper it.
Well off to mow coontail, cattails and bulrushes. The kind folks at Jenson Lake Mower gave me a four flat shaft to test. I have a few ongoing contracts so mow and test sounds good for a Saturday to me. Drag all the boys along for some pond fun, blackberry picking, and fishing afterwards. Last soiree before they head back to school. Thanks for the Sonar writeup.
