OK, let's say that's it then. I really need something that will get rid of this stuff. Simply raking it, blowing it, or hosing it with a strong stream of water is both labor-intensive (there's an awful lot of it) and really does not solve the problem. I have done all three things with the stuff in my yard (last fall) and I have more now than then.
I need something that I can spray and kill the stuff.