Entomopathogenic fungi are very interesting, but nothing new. Very finicky and require specific Evi Ron mental (thanks autocorrect, that makes much more sense than the way I wrote it....) conditions to work. More suited to greenhouse or indoor growing, where raising humidity or temperature is within the growers control.
Syngenta has been in the biocontrol game for years. I assume Monsanto has similar activities, though I don't believe they've brought a product to market. Stamets is in a league of his own, but it's unlikely this will break the back of Monsanto, when they can just throw money at the problem and join the game late. By the exponential annual growth of the biocontrol industry, it's unlikely they'll do anything else.