A blog originally for keeping track of my hobby of being a Beekeeper which has evolved to include Home Brewing and even more recently to follow me and my families approach to "The Good Life". Eventually I hope to include baking recipes and stories of our flock of chickens also reporting on the success and failure at the allotments.

Showing posts with label oxalic acid. Show all posts
Showing posts with label oxalic acid. Show all posts

Thursday, 13 December 2012

Wakefield and Pontefract Beekeepers: Novembers Meeting

The last Monday of November was the last meeting we will have of the year as we don't have meetings in December. The meetings main part was a presentation by our association's president who is also the regional Bee inspector for the North East of England. The subject was about giving your bees the best start possible to start the new year. 

We were asked when the beekeeping season really started or was it more dynamic than simply having a start and end date. Does the bee season run from spring to spring, winter to winter or even from when the Queen starts laying to when she finishes laying. 

We also discussed winter mite treatments which include oxalic acid. This treatment is applied when the Queen had stopped laying and there is no brood present. It involves putting small amounts of diluted acid mixed in sugar syrup directly on the bees. This will kill the mites but not affect the bees. The treatment comes either in crystal form or in a pre made solution. This year I have bought a pre made solution as this will be easier for me. 

The presentation also included various graphs showing how quickly the mite population can increase if not treated. It showed the difference between starting the season with only a few mites compared with about 50 and over 100. With only a few it takes a really long time for the mite population to get to really dangerous levels but with 100 mites it takes much less time. Even with 50 it takes a lot less time than with over 100.

Another thing we were shown was a map of our region showing where the different foul brood diseases have been detected over the last few years. Luckily there were no major outbreaks of either disease near to my apiary, though I will still have to be very vigilant for they can be devastating and you have to report any signs of either disease. 

The meetings was finished as usual with a raffle, though as I'd forgot my wallet that was out of the question! I did get offered a cup of tea by a fella that lives close to me, we have since swapped details so the meetings in the new year we will be able to car share. 

Tuesday, 28 February 2012

Wakefield and Pontefract Beekeepers: February Meeting

Monday just gone was the February meeting for my local Beekeeping association. This month the talk was held by a guy from the NBU or the National Bee Unit. The main purpose of the talk was to give the results of some research that has been going on recently. He covered how they conduct their research, which was done over 2 years in random apiaries. There were plenty of pie charts and diagrams to show the different levels of disease that where found within the apiaries. I won't include any of the figures, this is mainly due to not having access to them! The general idea I got was that EFB and AFB aren't at high levels, but other diseases are higher. One of the higher level diseases was DWV (deformed wing virus) and there was a further graph to show how levels of this problem relate directly to varroa levels. All in all the presentation gave me confidence that no matter how many problems the Bees face there is still a lot of research going on to try to combat them.

Within the presentation a lot of emphasis was on encouraging people to register on Beebase Website. I have already done this some time ago and can confirm that it is a very good resource for UK Beekeepers to use. Within the site there is a section for putting details about each hive inspection and can also easily be set up for various different apiaries. There is also a lot of information about the various problems Bees suffer from and what to do. There are lots of .pdf documents to download and print out to hand out to people to provide further info. All in all it's well worth registering if your either a Beekeeper or interested in becoming one.

After the presentation I went to see the secretary as some goodies that I had ordered as part of my associations bulk buy scheme had arrived:-

Apiguard. This is a treatment for varroa mites. There is enough for 5 hives in this box. I'll describe how it's used closer the time that I use. I think it's very similar to the other treatment I used last year, APILIFE VAR, but in an easier to use package!

Another varroa treatment. It's the same as the stuff I used in the winter time except already made into a liquid.

Hessian sacking. This is just a bundle of hessian. It's useful in the smoker and really helps get your smoking working properly.
There are more items that I ordered but they will be there next month. I think all I have left to arrive are some more packs of wax foundation.

Thursday, 29 December 2011

Apiary inspection 28/12/2011

Yesterday was probably my final hive inspection of this year and in this inspection I applied the main varroa treatment for the year, oxalic acid. This acid is found in honey but at really low levels and by introducing it into the hive it kills the varroa mite. The treatment only affects adult Bees so the best time of year to apply the treatment is around now when the level of brood is at a minimum. I know that I have mentioned in a previous post that I would ideally like to keep Bees naturally without the use of chemicals, however as I am still a novice I believe getting my Bees through their first winter and into spring healthy is my number 1 concern. Maybe later I will try the more natural way.

To start with I needed to get hold of oxalic acid crystals and was in luck when one of the people I did my training course with offered to give me enough for two treatments. The exact amount of crystal he gave me was 7.5g per treatment. The crystals where then mixed by myself with 100g of sugar and 100ml of water to give a solution that is 3.2% oxalic in a 1:1 sugar solution. This was harder than it sounds, it took a long time to dissolve the sugar into the water and even longer to dissolve the crystals but I got there in the end. The next step was to introduce the mix to the Bees.

Upon arrival at the hive there was a distinct lack of movement outside the hive, but to be honest it was rather windy and I'd rather have been tucked up in my house. When I removed the hive roof I could see what was left of the fondant I added previously; 1 empty box and 1 almost full. As I removed the crownboard the Bees started to show themselves but were not as lively as I have seen them in the past. I did a quick check of the weight of the remaining frames by gently lifting a couple with my new hive tool and was surprised at how much honey they actually had left; I can only think that with the mild end to autumn the Bees have been collecting later than I imagined they would do, clever Bees! The only thing left for me to do now was to apply the treatment.

The treatment of oxalic acid recommends using 5ml of solution per seam of Bees; a seam being the Bees between 2 frames. In my case there were 9 seams with Bees in so I used a total of 45ml of solution. To apply the solution I used a syringe supplied by the same guy who gave me the crystals (thanks again Steve) and using this I sucked 5ml at a time into the syringe and gently dribbled this onto each seam of Bees. I was surprised that they didn't get aggressive when applying this but obviously happy not to get attacked. After each 5ml was applied I refilled the syringe until all seams had taken 5ml. When I'd put the treatment down I decided to take a short video of the inside of the hive. Here it is




Apart from maybe popping up and clearing snow from the hive (if we get any this year) and maybe a check to see if they have enough food stored, I believe this could have been my last hive visit until spring. I certainly won't be opening up the hive fully until the temperature has risen. In the next few months I will be continuing to go to my Beekeeping meetings and reading my new books which I got for Christmas as well as carrying on with home brewing.