Showing posts with label Ben Harden Method. Show all posts
Showing posts with label Ben Harden Method. Show all posts

Wednesday, April 25, 2012

New Queens, Hives All Over the Place

 Here's the latest picture of the home yard.

There's been a lot going on and not enough time to write about it and a deficit of pictures to explain.  

But here's one that should explain a little.


These are the queen cells taken from my queenless starter/finisher.  As you can see, 11 of 18 made the cut.  In the queenright starter/finisher, 17 of 18 made it through.  I've decided to use the queenright method from now on.  It's much easier, very simple, and you don't have any of the downsides related specifically to queenless methods.  This small sample size also shows how well it can work for a first timer compared to queenless, however, don't trust just two tests.

After the cells were matured, I got out on a Tuesday morning a few weeks ago and robbed seven hives of all but one frame of brood to have enough brood to make up the mating nucs.  The mating nucs are 3x3 queen castles that I designed and built myself.
In each, I placed an empty drawn comb, a comb of honey, and a frame of brood with adhering bees.

You can see in the picture at the top of the page most of them.  Three are in other places around the property.  After the queens hatched, I removed the queen cells and cell protectors.  The JZBZ cell protectors don't fit over the cell, but they still can protect and be used as a way to attach the cell to the comb.

After checking them a couple times, I can safely say that the vast majority have mated and returned healthy.  I have found one where the queen didn't return and one where the queen has not begun laying.  Out of 28 cells, those are pretty good numbers.  The nucs are all brooding and the first weekend in May, I will begin culling, combining, and figuring out where they will all be going.

My goal is to go into winter with at least 25 hives and the extras will be sold as nucs.  So, not too long and there will be nucs for sale.

Monday, March 26, 2012

Grafting Success!


I had a somewhat exciting week, this past week, Spring Break.  I grafted for the first, second, and third times. 

Sunday night, I made up some cell bars using wax cell cups I purchased from Rossman.  Monday morning, I put them in the hive so the bees could get used to them.  I put 12 cups on at first.

On Tuesday, there seemed like there was going to be a break in the rain after it had rained for two days. During an actual break in the rain, I ran out to my chosen hive and did the manipulations for the Ben Harden Method, acquired the frame to be grafted from, grafted, and placed the cell bar frame back in the hive.  I added six more cups just for fun. 

The Ben Harden method is one in which you use a queenright colony to raise new queens.  To do this, you make two dummies, frames that are just solid wood which kind of concentration the action in the hive to just a few frames in the middle.  You put this setup above a queen excluder.  You then place a frame of pollen, a frame of young brood, and the cell bar frame in the box and nurse bees are supposed to come up from below and care for the new queens.  They are not supposed to reject them because the queen has never set foot on that cell bar frame and thus her scent is not there.  It's managed kind of like an engineered supersedure.



Later in the week, I checked.  Every single one had failed.  No takers.  I had a few ideas why, the rain was on the top of the list.  I should have had more patience.  Instead of nurse bees coming up to tend the brood, they stayed in the main brood nest as it was probably too cold to go meandering about the hive.  Fortunately though, I had placed an empty comb in the broodnest to replace the one I put in the upper box.  But I'll get back to that later.

So I left the cell bar frame in the hive and waited until Saturday when the weather should be excellent.  I made up some more cell bars, another frame with 18 and decided that I would retry the Harden Method and also do a batch with a regular queenless hive.  That frame that I had put in on Tuesday was now the perfect frame to graft from and to use to bait nurses up from below.  All the larvae were pretty uniformly on their first day out of the egg (some eggs remaining) and were the perfect age to be grafted.  Add to that the fact that the cups had been in the hive for half a week and were well polished and ready to go.

It's hard to tell in this picture, but the bees have begun to raise 17 out of the 18 grafted larvae.  Quite a good run.  Remember, this is in a queenright hive which can go about its business with no disruption in brood rearing or queenlessness.


I took pictures of the queenless hive cell bar this morning as well, but my phone focused on the grass in the background rather than the bees so the picture is out of focus.  But it looks almost the same except that they only took 12 of the 18 grafted.  I reason this is at least partly because the cells were not allowed to be polished by the bees before grafting.  You can be assured I will not make that mistake again.

Overall, this was a very successful excercise and one from which I learned greatly.  More updates soon.  In a week, it will be time to make up mating nucs and that is likely to be a monumental task.

As you can see in the picture at the top, the yard looks markedly different.  I've removed most of the real estate from the hives that are not doing what they should be doing at this time of the year.  The middle hive in the left row is the one wherein the Harden Method is being used, and the very back corner one is the queenless one.  Its queen is in the nuc behind the bricks to the left of it.  All the honey stored from last year in the puner hives is being stored on the big nasty hive in the front.  This year, it is the designated honey producer.  It is a very active and healthy hive, but a little too mean to breed from.  Such a shame.

29 mating nucs is going to be a marathon!