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• Sugar syrup calculator

  The math is sometimes confusing for the mixing of sugar syrups. I’ve created a calculator that allow you to quickly determine how much granulated sugar or commercial 77% solids sugar syrup to add to create a specified amount of sugar syrup at any desired concentration. Download the spreadsheet here:  @Syrup calculator

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• Refining the Mite Wash: Part 1 – Treatment Threshold and Solutions to Use

  Refining the Mite Wash Part 1 Treatment Threshold and Solutions to Use Randy Oliver ScientificBeekeeping.com First published in ABJ July 2020 Once you’ve shaken a sample of bees, you then need to separate the mites from them.  There are various recommendations for using alcohol, detergent water, powdered sugar, ether, or CO2.  I’ve been using inexpensive […]

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• 2009 Almond Pollination Outlook

  2009 Almond Pollination Outlook Randy Oliver ScientificBeekeeping.com First published in ABJ November 2008   This is again the time of year when beekeepers want someone to look into the crystal ball and make predictions about the upcoming pollination season.  No one that I know of has such a clairvoyant device, but we can certainly discuss […]

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• Re-Evaluating Varroa Monitoring: Part 4

  Re-Evaluating Varroa Monitoring Part 4 WHAT ABOUT LETTING THE SHOOK BEES FLY OFF? Randy Oliver ScientificBeekeeping.com First appeared in ABJ June 2020 In my previous article I showed how the varroa infestation rate of bees varied by comb type, with those on brood frames having higher mite counts, but those on storage frames, despite showing […]

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•  Re-Evaluating Varroa Monitoring: Part 3

     Re-Evaluating Varroa Monitoring Part 3 HOW DOES MITE DISTRIBUTION VARY FRAME-TO-FRAME IN A HIVE? Randy Oliver ScientificBeekeeping.com First published in ABJ May 2020 In the previous articles in this series I evaluated the different methods for varroa monitoring, and then discussed the state of our knowledge as to where mites would be most prevalent […]

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• Re-Evaluating Varroa Monitoring: Part 2

  Re-Evaluating Varroa Monitoring Part 2 QUESTIONS ON SAMPLING HIVES FOR VARROA Randy Oliver ScientificBeekeeping.com First published in ABJ April 2020 In order to monitor the varroa infestation rate of the adult bees in a colony, one must take a sample of bees from somewhere in the hive. But how to decide which comb to take […]

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• Re-Evaluating Varroa Monitoring: Part 1

  Re-Evaluating Varroa Monitoring Part 1 METHODS Randy Oliver ScientificBeekeeping.com First published in ABJ March 2020 In order to avoid the preventable death of colonies due to varroa-virus overload, we’re told to monitor our colonies’ mite levels.  But how best to do so?  In this series of articles, I’ll review what we actually know, and provide […]

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• An Experiment to Improve Pollen Sub: Part 2

  Beekeeper-Funded Research An Experiment to Improve Pollen Sub: Part 2 Randy Oliver ScientificBeekeeping.com First published in ABJ May 2020   In my last article I laid out the reason that I ran this experiment, and my two suspects for being the limiting nutrient in the artificial diet – the lack of an important sterol and/or a […]

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• An Experiment to Improve Pollen Sub: Part 1

  Beekeeper-Funded Research An Experiment to Improve Pollen Sub: Part 1 Randy Oliver ScientificBeekeeping.com First published in ABJ April 2020   In my location, we may not see a drop of rain all summer long, so our colonies become pollen-starved. In order to prepare strong colonies for almond pollination, I used to move them to better forage […]

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• Questions on Amitraz

  Questions on Amitraz Randy Oliver ScientificBeekeeping.com First published in ABJ March 2020 This past year, some beekeepers asked me a couple of questions about amitraz. So I ran some quick cage trials to obtain answers. The results surprised me. Amitraz is a highly-effective acaricide (something that kills mites and ticks), and is widely used by […]

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