CO2 levels with Indoor Wintering Honeybees
Page 1 of 3 123 LastLast
Results 1 to 20 of 59
  1. #1
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default CO2 levels with Indoor Wintering Honeybees



    I had an interesting brief chat with a neighbour in regards to CO2 levels in his wintering shed. He had bought a CO2 monitoring device and has been monitoring everything from his office to every room in his wintering facility. His main shed is at 950ppm but his other shed is at 3500ppm. The conversation lead to optimal CO2 levels and where that equilibrium is at. 1700ppm seemed to be the common wisdom passed onto us by someone else...

    CO2 is an important factor when wintering honeybees. They use it as part of their dormancy control and maintain a certain elevated level of it within their insulating shell, 1700ppm had been suggested.

    So in regards to maintaining an indoor wintering rooms c02 levels, high levels might just kill them, trying to maintaining levels comparable to outdoor levels might just be wasted effort.
    More importantly however is the wintering room air circulation. Too much air movement within the room can disrupt the hives CO2 sheid and interfere with dormancy. Turn those ceilIng fans down too much and pockets of deadly gasses and air layering will form.

    I think it's time I start monitoring CO2 levels and stage my mid winter exhaust fans according to CO2 levels aswell as temp

  2. Remove Advertisements
    BeeSource.com
    Advertisements
     

  3. #2
    Join Date
    Apr 2016
    Location
    Southeast Texas
    Posts
    1,792

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Ian - what temp do ya'll try to maintain in that shed

  4. #3
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default Re: CO2 levels with Indoor Wintering Honeybees

    4 degrees C

  5. #4
    Join Date
    Dec 2012
    Location
    Sacramento, CA, USA
    Posts
    7,861

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Somewhere around 40F during the winter time.
    Is it possible to connect the fans with the CO2 monitoring device to turn
    them on automatically? I wonder if there is such a device exist or any other
    method to monitor the CO2 level better.
    Don't mix foreign bees into a virgin hive. She might get balled 100% of the time! When will you ever learn, huh?

  6. #5
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default Re: CO2 levels with Indoor Wintering Honeybees

    CO2 module to control an exhaust fan to maintain levels to a set point . One guy has his set to 2500ppm

  7. #6
    Join Date
    Dec 2008
    Location
    syracuse n.y.
    Posts
    5,242

    Default Re: CO2 levels with Indoor Wintering Honeybees

    your lucky your not south of the border, down here the EPA would be after you for contributing green house gases to global warming.
    mike syracuse ny
    Whatever you subsidize you get more of. Ronald Reagan

  8. #7
    Join Date
    Jun 2013
    Location
    Lebanon Pa
    Posts
    764

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Look up co2 monitors for grow rooms might be able to use them to ur advantage
    Friend tells me take time to stop and smell the roses I say "I do then I take 10 steps quicker to make up for lost time"

  9. #8
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Thx I'll look into that

  10. #9
    Join Date
    Sep 2007
    Location
    New Albany, Ohio, USA
    Posts
    1,002

    Default Re: CO2 levels with Indoor Wintering Honeybees

    A slightly different animal, but kept at similar densities to honey bees in some commercial operations...
    https://www.poultryventilation.com/s...12/vol24n2.pdf
    Breeder Queens & Honey Bee Nutritional Supplements
    www.latshawapiaries.com

  11. #10
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Good stuff Joe

  12. #11
    Join Date
    Jan 2007
    Location
    Manitoba, Canada
    Posts
    616

    Default Re: CO2 levels with Indoor Wintering Honeybees

    CO2 levels inside the cluster run as high as 60000 ppm and 40000 ppm just outside the cluster. Higher levels of CO2 appear to help bees winter more efficiently and lengthen life spans in winter.

    Anecdotally, I feel like the hives getting the most direct blast of air from my intakes do the best making it through winter.

  13. #12
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Allen that is totally and completely contrary to everything that had been passed on to me , lol, I love it ha

  14. #13
    Join Date
    Sep 2007
    Location
    Hudson, WI USA
    Posts
    2,569

    Default Re: CO2 levels with Indoor Wintering Honeybees

    I had not heard that overwintering bees kept CO2 levels high and was going to ask if there was research on the subject I could read. I googled it and found this abstract of a small experiment that correlated higher CO2 levels with higher mite mortality. As it is only an abstract I couldn't dig into the nitty-gritty, but I thought it was worth posting nonetheless.
    https://www.ncbi.nlm.nih.gov/pubmed/26453704

  15. #14
    Join Date
    Jan 2007
    Location
    Manitoba, Canada
    Posts
    616

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Other than Randy Oliver's article the rest are only abstracts as well

    http://scientificbeekeeping.com/old-...o-bees-part-1/

    https://www.researchgate.net/publica...ifera_colonies

    https://www.researchgate.net/publica...se_development


    I've never been too concerned about CO2 levels in winter. The bees winter in very confined spaces like trees and walls in nature and snowdrifts outside. Far less ventilation than I provide. There may be an optimal level for longevity and sugar consumption that would be good to know. I wouldn't doubt that the optimal CO2 levels for winter are much higher than the levels most people shoot for. Haven't found many studies in this area.
    Last edited by Allen Martens; 11-23-2016 at 09:37 AM. Reason: Added info

  16. #15
    Join Date
    Dec 2006
    Location
    Amador County, Calif
    Posts
    3,591

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Ian, There was a guy trying to kill the mites with CO2 levels in indoor wintering.
    NUTRA-BEE feed supplements

  17. #16
    Join Date
    May 2012
    Location
    Sacramento, CA, USA
    Posts
    5,464

    Default Re: CO2 levels with Indoor Wintering Honeybees

    I like HOBO stuff for monitoring, I know they make a C02 monitor with a readout, but it's not that cheap, but not too pricey either.

  18. #17
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Quote Originally Posted by Keith Jarrett View Post
    Ian, There was a guy trying to kill the mites with CO2 levels in indoor wintering.
    Ya they did work up here on that in the sheds,higher c02 levels promoted grooming while stored away in the winter shed,... I was quite a while ago, I'll have to look at Adrian's link when I get a chance

  19. #18
    Join Date
    May 2012
    Location
    Sacramento, CA, USA
    Posts
    5,464

    Default Re: CO2 levels with Indoor Wintering Honeybees

    Anyone every try during the summer? Say knock a colony out for a minute or two and see how many mites fall off through a SBB or something?

  20. #19
    Join Date
    Jan 2003
    Location
    Miami, Manitoba, Canada
    Posts
    9,340

    Default Re: CO2 levels with Indoor Wintering Honeybees

    You'd be a braver man than I
    That might end up with a mass of dead wet bees

  21. #20
    Join Date
    May 2012
    Location
    Sacramento, CA, USA
    Posts
    5,464

    Default Re: CO2 levels with Indoor Wintering Honeybees

    You could probably do it in the morning safely. If done properly, they should all revive pretty quickly.

Page 1 of 3 123 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •