Here’s Dewey Caron’s April 2017 presentation to the club.
To participate in the survey, please visit PNWHoneyBeeSurvey.com.
Dewey also provided us an excellent document on Dead Colony Forensics.
Andony is an Assistant Professor of Pollinator Health Extension in the Department of Horticulture at Oregon State University. His work at OSU comes out of a mandate from the Oregon Legislature to create a state-wide pollinator safety and outreach program. Prior to coming to OSU he was a Postdoctoral Scholar in the Department of Biology at the University of Calgary working with Shelley Hoover and Ralph Cartar on canola pollination. He holds an Interdisciplinary PhD from Dalhousie University (2015) and a Master of Pest Management from Simon Fraser University (1999). Formerly he worked as the chief technician in Agriculture and Agri-Food Canada’s Apiculture Research program (2000-2012).
If the video on Slide 9 doesn’t play it’s linked below:
Dewey Caron gave us a presentation on what to do in the apiary in September.
Dewey mentioned the survey analysis and the “mystery” in his presentation. That analysis is available in the files section of our website. And since Dewey will not be able to attend our October meeting, he put together a document outlining 10 things we can do now to help our bees survive winter.
Our main speaker was Harry Vanderpool, president of OSBA, speaking about overwintering nucs.
For our June 1st meeting Morris Ostrofsky came to present “Mite Keeping 101.”
Since 2010 Morris has participated in the development and implementation of the Oregon Master Beekeeper program. He is both a mentor and an instructor. Morris is also an active member and past President of the Lane County Beekeepers Association.
In October 2013 Morris was awarded the Washington state Master Beekeeper certification. He is the first Oregonian to receive this certification and is among only a half a dozen who currently hold this title.
Morris is an occasional contributor to Bee Culture magazine; his last article, Glass Jar Beekeeping, appeared in the May 2012 issue. His newest article, Overcoming Barriers to Beekeeping: How to Continue Doing What You Love, appeared in the May and June 2015 issues of Bee Culture.
Morris’ passion for teaching and beekeeping becomes apparent when he shares his knowledge with others. An interest in genetics and queen rearing has led to a quest to breed locally adapted, treatment free bees using the Miller Method.
Catching swarms is fun, but chasing them down and gathering them up isn’t always an option for everyone. It’s so much easier to just let the swarms come to you as they move into a swarm trap. It can also be challenging to prevent our hives from swarming, so giving them an option to move into will make it much easier to catch our own swarms.
I recommend reading Dr Tom Seeley’s book Honeybee Democracy where he writes up his experiments to better understand how bees choose a home. Within that book you’ll learn about ideal cavity size and entrances.
The dimensions he gives are a cavity between 30 & 40 liters and an entrance no bigger than 15 square centimeters.
Some beekeeping supply store will sell you a “swarm trap” made of pressed fiber in the shape of a flowerpot. I really don’t recommend this option. Nobody has a hive that shape, so moving the bees from the flowerpot to the hive is tricky. Instead, use equipment that matches your hives. If you have a top bar hive, use a trap that has top bars that fit your hive. If you use Langstroth hives, use a deep (about 40 L) or a medium (about 30 L) with frames so you can easily move the frames from the trap to your hive without having to cut and string up comb.
A 15 cm2 opening would be a hole with a 1.72″ diameter. So a hole anywhere between 1″ and 1.5″ would be perfect.
For bait, a couple drops of lemongrass oil placed inside the hive, or on a cotton swab is just about all you need. You can also include some old brood comb for additional attractant.
Sometimes bees will move into just about any old equipment, but by following the basic principles above, you can improve your odds of catching swarms the easy way.
Portland is weird. We like it that way! That weirdness can show up in our beekeeping too. We have weird hives and a weird way of doing things. For example: I use Langstroth hives, but I run all mediums (or westerns, as many people call them here). I don’t use foundation and I don’t treat my bees with acaricides. And I’m not the weirdest. Many of our members use top bar hives or Warré hives.
Every year there are more and more beekeepers being added to our ranks in this backyard hobby and we love that. They often choose from the many options of alternative (“weird”) hives. Unfortunately, there are very few options for these beekeepers to source bees. They have to buy packages that just don’t show any qualities of surviving in our area and are inherently problematic. Or they try to catch swarms, which is getting increasingly competitive each year. It’s also not a sure bet of getting good bees, or even any bees at all as they find it difficult to keep up with the more experienced beekeepers.
What we need in Portland is a source of locally raised bees that can accommodate all our weird variety of preferences: top bar, Warré, western Langstroth, small cell, treatment-free, foundationless, or whatever the personal flavor may be. The problem is, it’s difficult and costly for a large operation to begin and do well. Not only due to the “weird” market of buyers, but our later queen rearing season followed by a short-lived nectar flow can add to the challenge too.
Since we have such a large club with a relatively high beekeeper density, we have the opportunity to do something really weird: we can be our own bee breeders. Rather than rely on large commercial breeding outfits that either can’t fully meet our large demand or deliver us bees that just don’t do well in our environment, we can work together like bees in a hive and provide for each other. But we’ll have to do it differently. It can be done on a small scale too.
For the benefit of the beginner beekeeper, a nuc (pronounced “nuke”) is short for “nucleus hive” and just means a small but fully functional working colony in a small hive configuration. Typically sold to beekeepers in deep 4 or 5 frame Langstroth boxes. They can be made up by the beekeeper themselves instead of buying them, and can be built into whatever hive configuration you prefer. For example, if you’re a top bar beekeeper you can make a top bar nuc. Pretty simple really.
There are many ways to make up nucs by splitting hives. I recommend reading up on the various methods at Michael Bush’s website. The method and timing you use really depends on what your goals are.
There are significant advantages to making nucs during the flow. It’s easier. The bees are less defensive and not easily upset by all the manipulation that will be going on. The weather is nice and there is plenty of food available, so they’ll grow faster and are easier to take care of. Of course, they also may grow very fast and outgrow their little space. So it’s a good idea to also use them as a resource for other hives. (Hence the name “resource hives.”) They can provide additional or backup building materials for other hives that are weak or that you just want to give a boost.
They can provide a spare queen in an emergency. Additional brood. More honey or bee bread (pollen). Or even provide fresh clean comb for a hive that has old comb you’re rotating out. Taking from the nuc’s resources and giving to the larger honey producers can keep the nucs small and manageable and give the larger hives extra help. But of course, whenever taking resources from any hive, always do so responsibly so as not to completely disable the colony.
We experience significant losses in our apiaries every year. On average, about 50%. Most of us are always playing catch-up and trying to make up for our losses by either buying more packages, sometimes nucs if our equipment matches, or by chasing down swarms. These replacement bees then spend the first year building up and we’re not going to get a honey harvest from them. That’s fine. Let them do their thing and we’ll get honey in their 2nd year. But, then we still lose half of them again their first winter and we’re back again to making up the losses. And round and round we go.
Instead of always chasing our tail and trying to right the wrongs, we can just plan for the losses. If I want to have 3 or 4 hives in my apiary in the spring, then I’ll go into winter with 6 or 8 hives. That way, when I lose half of them, I won’t be on that merry-go-round. I’ll be right where I want to be. Providing space for 6 or 8 hives might be problematic though. And it could double our work-load. But that’s the beauty of nucs. Their compact size means they take up less room, are easier to manage, and don’t look intimidating to the neighbors.
So instead of making up nucs in the spring to try to fix our losses, raise queens in a few small queen rearing nucs in the summer when it’s easy. When the nectar flow is over, split some hives to make up some smaller nucs and use the queens you raised earlier. Be sure they have enough food stores to make it through the fall and winter. There may even be some leftover honey for you to harvest. Then, if they survive the winter, they’ll have proven that they are “survivors” and can help improve the local bee population.
Beekeeper A had 2 hives in the summer, and lost 1 hive in winter. In an effort to make up for his losses he split it into 3 parts in late April. The hives re-queened themselves successfully and built up well, but due to the setback caused by splitting, none of the hives built up enough to provide a honey harvest.
Beekeeper B had 2 hives in the summer. She took a comb of eggs and some nectar/bee bread from each one in June and used 2 small nucs to let the bees make queen cells. After the queen cells were formed she divided them up into 4 small queen rearing nucs to let the new queens emerge, mate, and begin laying eggs. She successfully raised 4 new queens which she used in August to split up her 2 other hives and their resources to create 6 nucs to overwinter. She lost 3 of them in winter, but the surviving hives built up quickly in the spring and had a strong workforce ready to take full advantage of the nectar flow.
While these 2 examples are idealized hypothetical situations, they illustrate how we can use the natural cycles and seasonal growth of the bees to our advantage and plan ahead. The nucs that overwinter grow extremely fast. The photos on the left show how one of my nucs grew from an overflowing 5-over-5-frame nuc to fill five 10-frame boxes in just 3 months. Swarms and packages cannot do that. Even nucs built in April can’t do that. They have too late of a start. Overwintered hives are building and gearing up for this in February. They have a 2 month advantage.
Maybe Beekeeper B above doesn’t want 3 hives. She can sell the 3rd one and provide a high quality, locally raised source of bees for another beekeeper in her club. And maybe she has some kind of weird hive configuration that her friend also has.
I encourage the beekeepers in our club to take up this challenge and plan ahead for losses. Build or purchase some nuc configuration that fits your beekeeping style and start small. See if you can raise a queen or two. Make up a couple splits in the late summer and see if you can get them to overwinter. It’s a learning and experimental phase, so don’t be too concerned about doing it wrong or making mistakes. That’s how we learn. We can then take the data from these experiments and improve year over year. Let’s work together on this and see if we can figure out the right formula for getting nucs through the winter so we can stop chasing our tails.
Resources to get you started:
Michael Palmer – Importance of getting local queens (YouTube)
Michael Palmer – On Package Bees (YouTube)
Michael Bush – Bee Splits (bushfarms.com)
Michael Bush – Nucleus Hives (bushfarms.com)
Kirk Webster – Cell Building and Overwintering Nucs (kirkwebster.com)
Splits & Nucs Demonstration (pwrbeekeepers.com – PDF)
Double Nuc Instruction (betterbee.com – PDF)
Establishing Honey Bee Colonies in Cold Climates (umaine.edu)
Overwintered Honey Bee Nucleus Colonies: Big Solutions in Small Packages (oregonstate.edu – PDF)
October was the last month Dr Dewey Caron will be with us this year. He’ll return to us in the spring of 2016. In his final presentation he gave us instruction on Fall Management for October.
This month Dr. Dewey Caron gave us a presentation on Fall Management for September.