I was literally just about to post this!! Some cool quotes from the article, for those who don't want to read through it:
In both indoor experiments and outdoor field tests, bees that fed on mycelium extracts fared significantly better than those that drank only sugar water. In caged bees infected with DWV, the researchers observed an 800-fold decrease in virus titres (a measure of the level of virus in the bee's system) among bees dosed with amadou extract. The effect was less powerful in the field, which are less strictly controlled than lab trials—colonies fed reishi extract saw a 79-fold reduction in DWV, those fed amadou extract a 44-fold reduction—but the results were still highly significant. (In other field tests, bees fed reishi extract saw a remarkable 45,000-fold reduction in Lake Sinai virus—another disease ravaging honeybee populations.)
This is probably a small part of why commercial and transported
bees used for mass agricultural pollination suffer -- there probably aren't many
mushrooms available in those fields.
"Whenever I hear about something like this, I immediately think of the risks and drawbacks," says Lena Wilfert, an evolutionary ecologist at the University of Ulm in Germany who studies the spread of viruses among honeybees. Of the known viral pathogens affecting the insects, she says, DWV poses the greatest threat of all, so she appreciates the potential benefits of powerful virus-nerfing agents. "But any time you apply a medication at large scale, you're going to have potential for resistance evolution in the thing it targets." Those questions have yet to be probed.
"We have to prove all this, you know? And thankfully, I've become more disciplined as a scientist, being around other scientists," says Stamets, who acknowledges that there's much more work to be done. "We're doing tests right now in several hundred more beehives. We're ramping up."
I'm always on board with more science.