I think it does work a lot better compared to other options. The rounds were a little stiff and hard to divide with bare hands but it's definitely doable. I did try timing it while using in a barrel and I noticed that it didn't completely eradicate the larva under 24 hours like it says. However, it does last a long time, stays even in the rain and less toxic so I'll try it again next summer.
Rating:
[4 of 5 Stars!]