Quinn, it won't work. I don't think they will get it, so best leave it alone.
Tony it is baffling that you keep having problems with those Mutant Ninja Mushrooms. I have to admit that I have a couple of them, and they never yet have given problems. I cannot say that about my Mutant Red Mushrooms. They appear to belong to the same genus. If I don't keep an eagle eye on them, they too get carried away. For me it means every so often remove the LR, and scrape away.
