Queen Excluders

 

Why do we use queen excluders?  To keep the queen out of the honey suppers in order to keep brood out of the honey frames.

 

When do we put the queen excluder on?  When we add the honey supers.

 

Does this mean anytime we have any honey supers on we keep the queen excluder on?  What about if we leave one medium supper on the hive for overwintering? Should we leave the queen excluder on?  What is going to happen in the winter as he cluster of bees move up the brood boxes and reach the queen excluder and the medium supper?  The cluster will keep moving up, but the queen will not be able to get through the excluder.  The worker bees won’t know this and they will keep moving up and the queen will be stranded.  With no other bees around her, or few bees around her she is going to freeze and die.  

 

The WHY we use queen excluders is to keep the queen confined in a certain area.  We use queen excluders WHEN we want to keep the queen from moving up into the upper boxes.  If you forget the why or the when and leave the excluder on in the winter you just created a situation that will kill the queen and therefore the whole hive.  

 

The WHERE with queen excluders is; maybe down south you can leave them on all year.  Maybe it never gets cold enough that the bees cluster and have to move into the upper boxes in Texas or Florida or California.

Varroa Mite Testing

Alcohol wash Varroa mite count.

This year I finally got serious about finding out what my mite count is for each hive.  By now I am well aware that you can not tell how bad your mites are just by looking at your bees.  By the time you notice mites on the bees, or you start finding deformed wing virus, your mite count will be really high.  So I put this test kit together mostly with items you can buy at Walmart.  There is a plastic tub, a bottle of rubbing alcohol, a wide mouth mason jar and a styrofoam bowl.  The mesh is just eighth inch hardware cloth that I cut to fit inside the jar canning ring.

I used a marker to mark the Mason jar at the 1/2 cup mark.  1/2 cup of bees is roughly 300 bees and is what you will usually see recommended as a sampling size.  You can also add a strainer fine enough to strain out the mites and you can reuse the alcohol a few times.

 

So here is my step by step guide how to test for Varroa mites.

     

The first step is to find a frame or brood that has at least 50% open brood.  Some times of year you may not be able to find that much open brood so just try to get close.  Make sure the queen is not on the frame!  This is really important.  The bees you will use to get a mite count in the alcohol wash method will be killed.  You don’t want to accidentally kill the queen.  If you are unsure if the queen is on the frame or not, then you may want to look through the other frames until you do find the queen.  Once you find her, make sure to use a frame the queen is not on.

 

      

I don’t like dragging the jar down the frame to knock bees into the jar.  I prefer to knock the frame on the bottom of the plastic tub, knocking all the bees into the tub.

     

Then it is easy to knock the bees into the corner of the tub and pour them into the jar.

     

Knock the jar down to pack the bees into the bottom and see if they come up to your 1/2 cup mark.  There is no sense using more than the 1/2 cup so check it a few times as you poor bees in.

     

Put the screened lid on and cover the bees with alcohol.  A little more than enough to cover them.  You want to be able to swirl them around and wash the mites off.

Swirl the bees and alcohol for about 30 seconds.

     

Then poor the alcohol into the white bowl and shake vigorously for about 10 seconds to dislodge all the mites and shake them into the bowl.  As you learn to do this it is a good idea to cover the bees with alcohol a second time and repeat the swirling and shaking process to see if you missed any.  If you did, then you probably didn’t swirl or shake long enough or hard enough.

    

The white bowl helps you to see the brownish red little mites.  They can be kind of hard to tell from some of the other debris, but you get the hang of it pretty quick.  This hive had 6 total mites (only 4 are visible in the close up photo).  The sample of bees should have been 300 bees so 6 mites translates to a 2% infestation (6 / 300 = .02 or 2%).  Next you have to decide what threshold you are going to use.  Do you put Varroa mite treatments in any hive over 2%.  Or any hive over 4%.  Or maybe even anything over 1%.  That one you will have to decide on your own.

 

I think it is important that you don’t just blindly treat all your hives.  I think it is important to find out your mite counts and then only treat the hives that really need the help.  The more often we beekeepers use the current mite treatments the sooner the mites will build up resistance to those treatments.

 

My mite counts for August 31, 2017

 

1  2017 NUC #1 from beemindfulhoney.com          2 mites

 

2  2017 swarm from Team Ford                                  1 mite

 

3  2016 Carniolan package (overwintered)             6 mites

 

4  2017 split from 2016 Carniolan package           30 mites

 

5   2017 NUC #2 from beemindfulhoney.com         2 mites

 

6  2017 swarm from Homer NE                                   1 mite

 

7  2017 NUC from Cecelia (Rosie) Patterson          1 mite

 

8  2017 swarm in a bait hive                                       0 mites

 

9  2017 cutout from Dakota City NE                        6 mites

 

10 2017 split from 2016 Carniolan package          4 mites

 

11 2016 Carniolan package

(overwintered and split in spring 2017)          50+ mites

 

 

Treated the two worst hives with Apigaurd on September 8th.

I will add the second dose in two weeks.  Hopefully I can do a mite count after the treatment and let you know how well the treatments worked.

 

 

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Stay open to possibilities, or you never know what you will miss.

Last Tuesday I went the the Siouxland Beekeepers meeting.  Something happened that made me realize, and not for the first time, that you have to always be open, otherwise you never know what you may miss out on.  I was sitting and talking with some beekeepers that I had not met before.  We were talking about pollinator seed mix and how to maintain the plot once the seed has been planted.  I was listening, and I was participating a little.  But I figured I already knew what was important regarding this topic because I had planted my own pollinator seed plot last fall and I had talked to the experts beforehand, therefore I knew what I needed to do.  But luckily I was still engaged in the conversation because one of the other beekeepers said he had a weed called Marestail in his plot and he was having to deal with it.  And I thought to myself “Marestail, that sounds like a name that could apply to the plant I see in my pollinator plot that I can’t identify.  I have been wondering if it is a weed or a wildflower.”  One week ago I had been in my pollinator plot wondering what this plant was and I took some pictures of it.  So I showed the other beekeeper the photos and he said “Yep, that’s Marestail.  That is going to become one of our toughest weeds to control”

Group of Marestail.

 

So I looked it up on the internet and yes, Marestail, or Horseweed, is a potential problem.  It sounds like if you keep it mowed and keep it from going to seed you can get it under control.  Luckily for me I was able to mow the areas where my Marestail is.  If I keep mowing it every time the Marestail is getting ready to go to seed I should be able to control it.

 

Marestail about to bloom.

 

 

 

 

 

 

 

 

 

 

 

 

 

So what if I had not gone to that bee meeting?  When I took the photos I had no idea when I would run into someone to ask what the plant may be.  If I had not gone to the meeting  maybe I would not have identified that weed.  The area most of my Marestail is growing is with the clover that I planted, and I was not planning on mowing that clover.  Maybe it would have gone to seed before I identified it as a weed!  Then I would have hundreds of times more weeds next year!  It is impossible to calculate the potential value to me of that one little statement, “Well I have some Marestail in mine that I am having to deal with”.  I know we all get busy and we have to prioritize, but the next time you are thinking about skipping something, remember to think about what you could miss out on.  You never know.  And always remember to stay alert and engaged, or you may still miss out, even when you do go.

 

 

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How are your bees? July 2017

Wow June was a busy month for me and the bees.  The big nectar flow started the second or third week of June.  I put some honey suppers on early.  Things never really took off though.  It was unseasonably hot and we were 2 or 3 inches behind on rainfall.  I think that slowed the flow.  We finally got some rain and I hope we will see some nectar coming in full boar now.  The sweat clover around here is the main nectar provider.  The yellow sweat clover is finishing up but the white sweat clover has just started to bloom.  I am hopping it will provide some honey.

 

I got two swarm calls in June and I caught both swarms.  I had a swarm move into one of my bait hives and I did a cutout in Dakota City.  I ordered some local NUCs and they were delayed due to cold weather so I just got the four of them in place by July 4th.  All in all eight new hives.  That is a lot of increase in one month!  I need a break.

 

I will keep a close eye on all the new hives and make sure every hive has room to make some honey with what is left of the summer.

How are your bees? June 2017.

New queens from splitting a hive.

 

Back in the first part of May one of my hives started getting ready to swarm. When I discovered this, they had already started raising queens in special queen cells. Once the bees start this process it is very hard to get them to stop and you usually end up loosing half the bees to a swarm if you are unsuccessful trying to them. Rather than fighting them, I decided to split the hive into three hives.  I made sure each had a queen cell or two so they could finish raising a queen. I also started two tiny hives with queen cells as backups in case the others fail to raise a queen successfully. June 3rd I got a chance to look at the new splits and I found four of the five have laying queens. I am pretty happy with those results. This is a photo of one of the new queens.

The spring fruit tree bloom was fairly strong this spring and some of my hives built up fast.  It was the first week of May when I discovered one of my hives was filling the open cells of the brood nest with nectar.  The more they do this the fewer places the queen has to lay.  Eventually they will fill the whole brood nest with nectar, the queen cant lay anywhere. The bees will build swarm cells and the queen will lay in those.  About the time the queen cells get capped the original queen and about half the bees will fly away in a swarm.  To stay ahead of this you need to make sure they have room in the brood nest when the spring fruit trees stop blooming.  If you find the bees are just starting to fill the brood nest with nectar you can add some empty frames or move some empty frames into the broods nest from other areas.  If they already have more than half of the brood nest filled with nectar then make sure two frames you add to the brood nest are un-drawn foundation.  The bees will start to draw this out and before it is drawn very deep the queen will lay eggs in it.  She can lay in partially drawn cells that they could not put nectar in.  This can head off the swarm impulse.

 

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How are your bees? June 2017

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Time to get the honey suppers on, if they are not already!

The main nectar flow starts the second or third week of June around here.  I think it is already started.  I have one honey supper on each hive that is not a new split.  I plan to add more in a few days.  The main nectar flow does not last long, some times only two weeks.  I want to make sure the bees do not run out of room to store that nectar and turn it onto honey.

How are your bees, April 2017

I can’t believe it is the end of April and I have not had a chance to post yet.  Spring gets really busy sometimes.  We had some warmer than usual weather early in April and some colder than usual weather late in April.  I went through all 4 hives and un-stacked the boxes to get to the bottom boards and clean them off.  Over the coarse of winter the bottom board gets pretty dirty.  Anything the bees discard falls to the bottom board and they do not have many chances to haul it outside when it is cold all winter.  Mostly there are dead bees accumulating on the bottom board.  Sometimes moisture will run down the sides of the hive and end up on the bottom board with the dead bees and other debris.  It is a really good idea to get rid of all of this as soon as the weather is warm enough to take the hive apart temporarily (mid 60’s and sunny for a day or two).  It is a good idea to keep some kind of cover on all the boxes as you work to retain some of the heat.  There is brood in the hive at this time of year and if it gets too chilled it will die.  So try to work fairly quickly.

 

While you are lifting boxes off, pay attention to how much they weigh so you know if the bees have enough stores or it you need to start feeding them sugar syrup.  My hives had a bit of capped honey left this year and I actually saw fresh nectar in the hives from early blooming fruit trees.  So I did not need to feed this spring.

How are your bees, March 2017

March 19th was 78 degrees.  Again, way warmer than normal for us.  We have been having spurts of warmer than usual weather, followed by normal weather.  It has been cool at night, sometimes below freezing.  I think we have had just enough cool weather to keep the bees from trying to raise too much brood.  At the same time it has not been so cold that they over taxed themselves keeping the brood warm.  I checked the hives today and I found brood at all stages: Eggs, larva and capped pupa.  We have been having this on and off unseasonably warm weather for 5 weeks now.  It takes honeybees around 3 weeks, 21 days, to go from eggs to emerging new adult bees.  So potentially there is already 2 weeks worth of new bees in each hive to help with the brood that is being raised now.  Every day the chance of really cold weather gets less and less.  So I am not as worried as I was about the bees freezing because there was too much brood they had to try to keep warm in a cold spell.

 

 

 The last time I checked the hives I noticed one of them had lots and lots of adult small hive beetles in it.  They were running around on the same frames as the bees.  No doubt they were keeping warm by hanging out right in there with the bees all winter.  Small hive beetles are not too big a deal in their adult phase, but the larvae make a mess by eating honey and pollen and causing the honey to ferment.  I am not sure when the adults will start laying eggs but I want to get rid of as many adults as I can before that happens.  I recently read that the Small Hive Beetle Jail (www.dadant.com/catalog/m01543-baitable-beetle-jail-trap-each) can be baited with honey and pollen.  The adults are attracted by the smell and the jail/trap is designed so the bees can’t get in and the beetles feel like it is an escape from the bees.  I have some honeycomb that happens to have some cells of pollen in it.  I thought I would try this out.
 I cut one or two cells of pollen out and put them in the center bait area of each trap along with the wax and honey surrounding the pollen cells.  I added these to the outer edges of the beehive boxes, just outside of where the bees are clustered.  The beetles look for hiding places away from the bees so this looked like a good spot.

These photos are of the Small Hive Beetle Jails that I removed to make room for the freshly baited ones.  These were in the hives all winter.  There is food grade cooking oil on each side of the bait area and the beetles basically slip into the oil and can’t get out.  Since there are no chemicals in these traps I felt is was safe to leave them in all winter.  As you can see they did catch quite a few beetles!

Just over two weeks have passed and I went and looked at the beehives and checked the Beetle Jail traps.  There were only 2 or 3 beetles in them!  That is out of 10 traps!  Maybe the honey and pollen is not as good a bait as I had heard.  I will have to re-bait some of the traps with a piece of an apple and compare the results.

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How are your bees, February 2017

 

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The bees were bringing in pollen on February 19th.  You can see pollen baskets full on two bees in this photo.  That is usually a sign they are raising brood.  It may just be because the weather is really warm and the maple trees just started producing pollen, so the bees are loading up early while they have the opportunity.  The forecast says we will be cooling off in a few more days.  So hopefully they did not start too much new brood.