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There is some "eco-friendly" spray that can incite the bees to clean themselves. It is not as effective as other methods against Varroa. You probably want the a

There is some "eco-friendly" spray that can incite the bees to clean themselves. It is not as effective as other methods against Varroa. You probably want the adult bees to clean the pupae as well somehow, the biggest problem is when the mites mess up the pupae - you can end up with a population of crippled bees that stands no chance of surviving. The problem is that to fight against Varroa effectively, all the beekeepers in the area have to fight Varroa. That just doesn't happen, so I feel like natural selection will be the way out.

markdown 8y ago
> The problem is that to fight against Varroa effectively, all the beekeepers in the area have to fight Varroa. Not to mention wild bee colonies also have to be treated or eradicated.
- lostlogin 8y ago
  They are gone where I am. Without treatment varroa gets them within a season. This helps reduce American foul brood risk but that’s a very small upside in a very grim situation.