- Aug 23, 2015
Earlier in the year, I heat treated and stored a huge amount of substrate for rhinoceros beetle larvae. The substrate was stored in my garage where it is extremely cold. I took it out today to fill up containers for larvae that I just found. When I brought it inside, I immediately noticed fungus gnats running through the container. When I mixed the substrate I found a good amount of fungus gnat larvae. No matter what I do I cannot prevent them. I hate them so much!