Strong Varroa resistant bee colonies Some suggest that one important trait for varroa resistance is smaller brood nest and less brood rearing. That may be so for some stock resulting in lower growth rate of varroa mites. It’s also resulting
Varroa resistance – the two traits
Traits for Varroa resistance We have found in our Varroa resistant project in our local bee club that when you begin a project like this, checking the varroa level is the most important tool, if you plan to treat colonies
The road to varroa resistant bees
The local bee club in the small town of Hallsberg on 59°N 15°E invites to a meeting on breeding varroa resistant bees. Saturday Oct 24 at 10 am – 14 pm. Venue Garveriet, Bra & Begagnat in Hallsberg. WGS 84
Resistance traits – VSH, VSHD, Grooming and more
Sometimes, the term VSH is used as meaning the same thing as varroa resistance. I think it’s helpful to clarify what VSH is. It is one of several resistance characteristics that affect the bees’ resistance to the Varroa mite. VSH
Wingless bees and varroa level
Before varroan came there could be seen occasional bees with undeveloped/deformed wings in spring. Maybe it was the influence of DWV, Deformed Wing Virus. But it may also have been chilled brood. During the final phase of the pupa development
The bee shaker and varroa resistance
One mite from 300 bees. I understand that sometimes it’s a good idea to get an idea of the infestation level of varroa mites in bee colonies. You can take samples from a couple of colonies in an apiary to
Changes again
I ended the last blog-post saying that the season wasn’t completely over yet. That was very true. August has been our summer here in Sweden. And it’s not over yet, August and warm summer. Though the nights are chilly. But
Changing plans
I make notes. I’m sure you do to. How much is a good question. I made more notes as a beginner and quite some years after that. When I got well above hundred hives I began to question each kind
More viruses due to cold weather
The weather has given the coldest May since 1962, 12 years before I started with bees. The bees have had a hard time getting enough pollen to keep up egglaying to reach optimum nectar gathering strength when summer comes. In
My selection parameters
I have prepared for and selected for varroaresistance for quite some years. Last year I learned how to test a colony for VSH, a simplified method described by John Harbo, easy for everyone to use. DWV-bees on the hardboard Before