Rootsum Reviews 

It's been a bit over two weeks. And instructions on the package indicate that's the time for the gnats to go away. They didn't go. Partially maybe. In the beginning I think there were less of them than before, visibly less. The are returning now, I still see them around the plants and I see the new babies crawling on my plants as well. It didn't work. At least now fully. And that is with the risk of my plants being overwatered since it's necessary to keep the soil moist for the whole two weeks. I risked for nothing basically. Not satisfied. Hand-picking new larvae daily.

I've bought twice their nematodes to control a fungus gnats issue.

First I thought I did something wrong while applying it, so I bought another one and a gardener did the application without any effect... fungus gnats infestation is really out of control.

Not worth it.