The wind may have helped you in some ways, and hurt you in others. It's good to get it stacked, but since you are using contact herbicide you may have missed a lot under the surface. I would not have sprayed twice in the same day. But the good part is probably most of the herbicide will end up where it is supposed to, on a lot of mealweed. There are two things I try to put off in the wind, burning and spraying.
Greg, I know whatyou are saying, and I have gone above manufacturers specs when I am under the gun to get something done. But when you have a DIY like Todd on his own pond taking his time I think it is best to start off light. Otherwise you will never know how effective the lower concentrate is. In most applications I tend to overkill, but when I know I am repsraying, I start off light just to see what the minimum I can get away with. Why spray away with a 3-4% when .5 might do just about the same? Especially with a contact herbicide. It is kind of like the no pond is the same deal. No herbicide application is the same. If you start off heavy, you may just be wasting product and money without even knowing it. Takes the same amount of time to spray either way. The kicker is the excess active ingrediant in the water. Diquat is not exactly a selective herbicide, as has been mentioned here. Collateral damage is not a good thing here.
