They will most likely have a much longer life cycle at that temperature, but they will hatch. I had them in the basement and the temperature was in the 50's.
I wonder why the mosquito bits did not work. I believe it is the same formula as the dunks, but one is pressed into a ring and the other is loose. I have been leaving the dunks to soak in the water, and just adding more water, and adding another chunk of the dunks to my water container every few weeks. I strain the dunk water through a net, and add more water to the container to replace what I take out. I read somewhere that it takes 24 hours for the bacteria in the dunks to become active. I don't know if that is true or not.
Please keep me posted on the gnatrol. I would have to order it from the U.S. and it would likely take a couple of weeks to arrive, but I am planning on ordering some next year well in advance of seedling season. This season, I could purchase the dunks locally, so that is what I used because I didn't want to let the fungus gnats breed freely for two weeks while waiting. Anyway, it has been successful, so far, along with sterilizing all bagged soil.
As I mentioned, I did bottom water, as well, because I was finding them crawling around on the trays and under the pots.
