posted 5 years ago
I happen to have e-mailed Paul Stamets site about 2-3 weeks ago asking if they had any commercially available fungal pesticides. I was looking for the one he mentioned regarding termites. They responded that they did not have any commercially available yet, but there are some types mentioned in his book Mycelium Running, chapter 8, that I could try. I got the book and while I have not read it all the way through, I did glance at chapter 8. There, he mentions Metarhizium amisopliae in particular that is effective against termites, and for him, carpenter ants. From what I gather, it is effective against many other type of social insects as well. If he found it to have worked against carpenter ants, I imagine it would work against other types of ants, too. However, he did use a delayed sporulation strain after observation, and harvested that for use for the ants that were invading his house. That one seemed to have worked. The ants devoured it and infected the rest of the colony.
If you don't have the book mentioned above, you may want to purchase it (I got it used) or get it from the library to take a closer look at chapter 8. There are many helpful pictures in that chapter as well.