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Type: Posts; User: Utahbee

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  1. Replies
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    Re: Had bees emerging inside my house yesterday.

    I think you are seeing Japanese hornfaced bees, Osmia cornifrons. The fact that they emerged through mud capped nests indicates that they are mason bees. Leafcutter bees overwinter as larvae and...
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    Re: Leaf Cutter Bee Larvae Problem

    Leafcutter bees naturally overwinter as last stage larvae and so no action is needed. In May or June the larvae will pupate and then become adults early in the summer. Dale
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    Re: Looking for leaf-cutter bee cocoons

    I'd like to address the original question as to where someone can obtain leafcutter bees. The only managed leafcutter that is commercially available, to my knowledge, is the alfalfa leafcutter bee. ...
  4. Re: Looking for observations on northern populations of Osmia

    Seattlelite,

    Here is a link to a mediocre quality photo of two Stelis cocoons, see page 56 of this rather large but downloadable file: http://www.sare.org/publications/bee/blue_orchard_bee.pdf....
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    Re: My first season for mason bees...

    The blue orchard bees in my area (northern Utah) are very fond of grape hyacinth flowers and actively utilize them until as long as they are in bloom. These short perennials have become "weeds" on...
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    Re: My first season for mason bees...

    The brown bee in your photos looks like Osmia taurus to me. Someone familiar with mason bees of the northeast should be able to verify or correct this identification.
    Dale
  7. Re: Looking for observations on northern populations of Osmia

    Here are the parasites that I find in my bees when collecting nesting tubes from natural environments: Monodontomerus, Stelis, Tricrania, Trichodes, and Ptinus. Once in a while Chrysura, or a...
  8. Re: Looking for observations on northern populations of Osmia

    Gord, you've brought up a lot of interesting topics here and I'll try to address a few of them at this time. Let me say first that I live about 3 miles from the USDA ARS Bee Lab in Logan, Utah, and...
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    Re: My first season for mason bees...

    Some mites will drop off but a few will usually remain with the female bees to re-infest the new nests and start the cycle over again. The best solution is to have clean cocoons before the bees...
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    Re: My first season for mason bees...

    Omie, your high quality photos have provided a possible answer as to why the first emerging bees seem to have flown away. Looking at the last photo, you can see a cluster of pollen mites clinging to...
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    Re: foraging range of the blue mason bee

    Female blue orchard bees will collect pollen and mud at very short distances when these resources are readily available. This is why they have become such valuable pollinators of orchard crops,...
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    Re: Bad rap from “MASON BEE” purveyors

    There are many mason bee vendors who really know nothing about the bees and are looking to make a quick buck. It is all about marketing, and unfortunately many false claims are made. The primary...
  13. Thread: Mason Bees

    by Utahbee
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    Re: Mason Bees

    In the comparison above I was referring to the size of the hole itself, not just the diameter. To calculate the size of the opening use the formula pi (3.14) x the radius squared. So for a 1/4 inch...
  14. Thread: Mason Bees

    by Utahbee
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    Re: Mason Bees

    The issue of the best hole size for nesting mason bees has been thoroughly studied. For Osmia lignaria, the best size is generally considered to be 5/16 inch in diameter. The difference of 1/16...
  15. Thread: Mason Bees

    by Utahbee
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    11,901

    Re: Mason Bees

    Regarding the questions asked by Josh, no, the bee cocoon's do not adhere to the walls of the nesting tubes. They are loose inside the tubes and are therefore easily removed. In some cases you will...
  16. Thread: Mason Bees

    by Utahbee
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    11,901

    Re: Mason Bees

    You might want to consider using Phragmites reeds for nesting tubes. Many people are cutting their own reeds and use them exclusively for mason bee propagation. I know several fruit growers that...
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    Re: alternative bee picture

    Hi, just a comment or two on the bee photo. The bee in question is not a blue orchard bee but something else in a different genus. As mentioned above, blue orchard bees collect pollen on the...
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    Greetings from the Beehive State

    Hello All,

    My involvement with bees is somewhat different than that of most of the members here. Although at one time I worked with honey bees and thoroughly enjoyed it, I have since focused on...
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