I have heard of other methods as well, for verroa mites:
- Vaporized food grade mineral oil, applied once every three weeks
* Supposed to suffocate the mites by coating the bees and depriving them of air
- Powdered sugar
* Supposed to work by same means Rick mentioned concerning lemon juice
For small hive beetle:
- Credit card sized pieces of
cardboard or plastic politician ad signs, (the point is to have numerous, small tube-like cells, too small for the bees to enter, coat one end of 'tunnels' with vegetable shortening, fill the interior cavity with a mixture of boric acid and powdered sugar, cap the other end with more shortening.
* The beetles will be attracted to the shortening, eat the contents of the tunnel and die, being herded inside the cavities by natural instincts of bees.
* I've seen instances where diotomaceous earth was used in place of the boric acid.
For tracheal mites:
- Essential oils of winter green or spear mint added to sugar solution, fed to the bees, (I'm not sure what the ratios are supposed to be - I've heard that a pint jar of the essential oil can treat 500 hives).
Fungal growth:
- Avoid disturbing the hive too often
- (Seems to me that a big advantage of the KTB hive with a removable bottom board is that the keeper can lay down under the hive, as you would when working on a car, inspect comb formation/queen cell formation and bee activity, and close it up without breaking any propolis seals or risking rolling bees between combs.)
Wax moth:
- Let the bees build fresh comb each season
- Healthy hives will largely keep them in check
Invasive pirates, (wasps,
ants, etc)
- If feeding sugar solution, only use small quantities the bees will consume in a week or so
- Use the coke-bottle trap method to trap them, (cut plastic bottle in half, invert top inside of bottom, fill with an inch or two of cheap soda pop)
- Diotomaceous earth around base of hive to keep out ants and other terrestrial insects, including hive beetle