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  1. #1
    Join Date
    May 2012
    Location
    Brookline Massachusetts USA
    Posts
    88

    Default Dribbling Oxalic

    What percent of oxalic concentration do most people use when doing this method of mite control?

  2. #2
    Join Date
    Nov 2006
    Location
    Chapel Hill, NC
    Posts
    709

    Default Re: Dribbling Oxalic

    I do a single treatment of 3% OA in mid November. (North Carolina)

  3. #3
    Join Date
    May 2008
    Location
    Concord, CA
    Posts
    4,194

    Default Re: Dribbling Oxalic

    You only want to use that method once per year, & its usually done in the fall.
    Dan

  4. #4
    Join Date
    Apr 2011
    Location
    Weeki Wachee, Florida,USA
    Posts
    2,065

    Default Re: Dribbling Oxalic

    Why only once?
    Hives in Florida don't shut down like up north, it would be hard to treat during "broodless" period.

  5. #5
    Join Date
    Jun 2010
    Location
    Hattiesburg,MS
    Posts
    45

    Default Re: Dribbling Oxalic

    Once a year is all the bee's can take. More than that with dribbling can be lethal.
    You can fog them (vaporize method) several times without harm. 3 times is normally used to cover the brood cycles using fog method.

  6. #6
    Join Date
    Apr 2011
    Location
    Weeki Wachee, Florida,USA
    Posts
    2,065

    Default Re: Dribbling Oxalic

    Can you explain this?
    I thought that the dribble method shortened their life but left no residue.
    The newly hatched bees have no exposure and so treating three times over three weeks would kill most of the mites and the new brood emerging after three treatment would be more mite free and have had no exposure. I thought the point of treating only once was treating during broodless period and not damaging bees that had to survive over a northern winter.

    I have no experience with this.

  7. #7
    Join Date
    Aug 2012
    Location
    fallbrook, california,usa
    Posts
    4

    Default Re: Dribbling Oxalic

    Quote Originally Posted by Mbeck View Post
    Can you explain this?
    I thought that the dribble method shortened their life but left no residue.
    The newly hatched bees have no exposure and so treating three times over three weeks would kill most of the mites and the new brood emerging after three treatment would be more mite free and have had no exposure. I thought the point of treating only once was treating during broodless period and not damaging bees that had to survive over a northern winter.

    I have no experience with this.
    How long does it take to see effect after dribbling oxalic. We did a test of 20 colonies yesterday, and checking them today?

  8. #8
    Join Date
    Dec 2007
    Location
    Ludington, Michigan
    Posts
    648

    Default Re: Dribbling Oxalic

    dribbling causes some damage to the carapaces or gut of the bee's. This damage is cumulative and with mutiple treatments can kill the colony. What this means is no more than one treatment per brood cycle

  9. #9
    Join Date
    May 2008
    Location
    Concord, CA
    Posts
    4,194

    Default Re: Dribbling Oxalic

    When I heard Randy Oliver talk about it, he said once per year is all you should do it. Remember the queen isn't replaced every brood cycle.
    Dan

  10. #10
    Join Date
    Jun 2010
    Location
    Hattiesburg,MS
    Posts
    45

    Default Re: Dribbling Oxalic

    The dribbling method and the vaporizing method are two different treatments. Dribbling
    is once a year, vaporizing once a week for 3 weeks OR once during a broodless period.

  11. #11
    Join Date
    Apr 2011
    Location
    Weeki Wachee, Florida,USA
    Posts
    2,065

    Default Re: Dribbling Oxalic

    I can find examples of lots of people repeating the only treat once rule.
    I can find examples of commercials treating multiple time within a short time.
    I can't find examples of people that have treated multiple times and report hurting or killing strong hives.

    Is anyone aware of studies done that can back up this claim?

  12. #12
    Join Date
    Jun 2010
    Location
    Hattiesburg,MS
    Posts
    45

    Default Re: Dribbling Oxalic

    Last edited by jaybees; 08-18-2012 at 08:17 AM.

  13. #13
    Join Date
    Feb 2006
    Location
    Herrick, SD USA
    Posts
    4,624

    Default Re: Dribbling Oxalic

    My experience is that a large hive dosent show any apparent negative effects from an oxalic dribble (we use a 3.2% mixture). We have experimented with multiple treatments through the summer as well. The trouble is I also haven't noticed a resulting mite reduction because I think way too many mites are in the sealed brood to have much effect. My conclusion is one well timed dribble when they are broodless in the fall is the way to go. It will harm a small cluster but I just figure those probably wouldnt have survived the winter anyway, particularly if their mite counts were high.
    "People will generally accept facts as truth only if the facts agree with what they already believe."- Andy Rooney

  14. #14
    Join Date
    Apr 2011
    Location
    Weeki Wachee, Florida,USA
    Posts
    2,065

    Default Re: Dribbling Oxalic

    Yes those are the articles that people seems to try to quote from. I was questioning he validity of the "only treat once statement".

  15. #15
    Join Date
    Jun 2010
    Location
    Hattiesburg,MS
    Posts
    45

    Default Re: Dribbling Oxalic

    Jim- Have you tried the vapor method?

  16. #16
    Join Date
    Apr 2011
    Location
    Weeki Wachee, Florida,USA
    Posts
    2,065

    Default Re: Dribbling Oxalic

    Jim,
    Thanks for the reply, I'm assuming that you treat with OA dribble in a more northern climate than me. I'm not sure that bees here are often as broodless as hives north of me.
    I wonder if one OA treatment only in our most broodless period would be enough or other measures would need to be taken? What would those measures be?

  17. #17
    Join Date
    Apr 2005
    Location
    Salem, Oregon
    Posts
    1,014

    Default Re: Dribbling Oxalic

    One year, after all the hives were treated, I remembered a swarm tht I had missed out behind the barn.
    Here is a picture that I took the day after dribbling OA at 3.4%:
    http://img.photobucket.com/albums/v2...n/DSC00550.jpg
    I have exactly ONE hive more than you.
    That makes my opinion beyond question.

  18. #18
    Join Date
    Apr 2011
    Location
    Weeki Wachee, Florida,USA
    Posts
    2,065

    Default Re: Dribbling Oxalic

    Looks like it really hammered the mites.
    Do you attribute the dead bees to OA or just normal house cleansing?

  19. #19
    Join Date
    Apr 2004
    Location
    Central CA.
    Posts
    542

    Smile Re: Dribbling Oxalic

    You might find this interesting.

    http://www.beesource.com/forums/show...xalic-Acid-Use

    It is an old thread,we have been here before.

  20. #20
    Join Date
    Feb 2006
    Location
    Herrick, SD USA
    Posts
    4,624

    Default Re: Dribbling Oxalic

    Quote Originally Posted by jaybees View Post
    Jim- Have you tried the vapor method?
    No, I have a couple problems personally with that. The first is safety, we have a lot of hives to do and I have concerns about a person being around that vapor for extended periods of time. The second is time. We can dribble a yard of 40 hives way faster than any vapor system that I have ever seen.
    "People will generally accept facts as truth only if the facts agree with what they already believe."- Andy Rooney

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