What flowers leave this mark on the thorax
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  1. #1
    Join Date
    Mar 2016
    Location
    Elma Iowa USA
    Posts
    31

    Default What flowers leave this mark on the thorax

    A good share of the foragers are returning with a white stripe on the back right now in NE Iowa. Anyone know what flower it is from
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  3. #2
    Join Date
    Jul 2010
    Location
    jackson county, alabama, usa
    Posts
    10,145

    Default Re: What flowers leave this mark on the thorax

    i see similar streaks when the bees are getting into tulip poplar and cotton, except the color is bright yellow and creamy yellow respectively.

    both of those blooms are large cup like flowers that the bees go into and crawl around.
    journaling the growth of a (mite) treatment free apiary started in 2010. 20+/- hives

  4. #3
    Join Date
    Jun 2015
    Location
    Lake Forest Park, WA
    Posts
    577

    Default Re: What flowers leave this mark on the thorax

    Zone 8, elevation 70 ft, near the north end of Lake Washington

  5. #4
    Join Date
    Mar 2016
    Location
    Elma Iowa USA
    Posts
    31

    Default

    Ok maybe it’s jewelweed. We have something blooming now that looks like that. I’ll have to do some scouting. Must be a good nectar source because very few that were striped were carrying pollen

  6. #5
    Join Date
    Dec 2017
    Location
    Dane County, WI, USA
    Posts
    2,859

    Default Re: What flowers leave this mark on the thorax

    Jewelweed.
    Former "smoker boy". Classic, square 12 frame Dadants >> Long hive/Short frame/chemical-free experimentations.

  7. #6
    Join Date
    Jan 2018
    Location
    Kirkland, WA
    Posts
    105

    Default Re: What flowers leave this mark on the thorax

    I'm getting the white stripes too and I'm on the East side of Lake Washington (Rose Hill, Kirkland). Supposedly jewelweed is not supposed to be here and the county wants to be notified if found.
    OldMontgomerysFarm.com
    Paul Montgomery -- C-I-E-I-O

  8. #7
    Join Date
    Jun 2015
    Location
    Lake Forest Park, WA
    Posts
    577

    Default Re: What flowers leave this mark on the thorax

    Quote Originally Posted by paulmon View Post
    I'm getting the white stripes too and I'm on the East side of Lake Washington (Rose Hill, Kirkland). Supposedly jewelweed is not supposed to be here and the county wants to be notified if found.
    I live near the North end of Lake Washington and the jewelweed is very common. A few years ago they (the city or county?) made some effort to get rid of it from wetlands in my neighborhood but apparently not this year (or they could not catch up). They did remove closely related Himalayan balsam.

  9. #8
    Join Date
    Sep 2010
    Location
    St. John's, Newfoundland, Canada
    Posts
    64

    Default Re: What flowers leave this mark on the thorax

    I saw something like this on my bees when I first started beekeeping. Then I discovered a viney plant with white flowers called Morning Glory, or bindweed. It looks like this:

    https://mudsongs.org/pollen-nectar-s...morning-glory/

    You can see how the pollen would rub against the bee by the way the bee has to reach into the flower. It could be something like that that's causing it.
    - Phillip
    @ Mud Songs

  10. #9
    Join Date
    Jan 2018
    Location
    Kirkland, WA
    Posts
    105

    Default Re: What flowers leave this mark on the thorax

    I would guess it's the morning glory that this is coming from rather than jewelweed. Thanks.
    OldMontgomerysFarm.com
    Paul Montgomery -- C-I-E-I-O

  11. #10
    Join Date
    May 2018
    Location
    PNW
    Posts
    21

    Default Re: What flowers leave this mark on the thorax

    Interesting, I see that in Sammamish (little more east of Kirklan) and I though those were some sort of wild bee mongrels...

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