I've not seen this before. Looks interesting.

http://www.varroa-sound.de/

A revolution in combatting varroa
mites with ultrasound!

• 100% organic
• 100% residue-free
• harmless to bees
• simple to use
• economical price
• can be used during foraging
• optimal effect

With this device the bee colony is exposed to high frequency sound (c.15,000 Hz at 90 decibels) over a period of 25 days.

The bee colony is then almost varroa-free. This frequency is inconsequential for the bees and does not disturb them.

The varroa mites' uptake of food is severely affected, so that old mites die within c. 10–20 days. The sound is also effective in the brood: juveniles (young mites) die in the brood cell within a day, and adult mites in the brood are so disturbed that reproduction no longer takes place and they die out. After 25 days the colonies are healthy.


Varroa Killer Sound should be employed twice a year.
Ideal periods: February to mid-April and July/August
Important: always treat whole apiaries
(to prevent re-infection)