When combining many techniques to eliminate gnats once and for all, it’s essential to make sure that they complement one another. Such as, a hydrogen peroxide drench may also kill nematodes. So, anticipate two months following a neem oil or hydrogen peroxide flush prior to putting nematodes from the soil. https://plantflies85949.blogripley.com/25939320/5-tips-about-fungus-gnats-indoor-plants-you-can-use-today