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My hobbyist method for using Glycerine/Oxalic


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With very little else to do for at least 4 weeks, I thought I might document my system for creating OG strips. I haven't read on the topic since last year, I hope what i do isn't out of date? But they

Hi Alastair, I'm working on a principle of 20grams Oxalic per brood box ie, if I have a strong hive with 2 boxes of brood, say 6 frames in each, I would use 12 strips (40g). What amount are most ppl u

My findings so far are that the bees are happy to have brood up to the strips, but most often there is nothing behind them. But this also happens with synthetics, and my conclusion is that they can't

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Nice work Katipo. 

 

Only possible problem is you are using quite a bit less acid than most other people are using, but please update in due course  it will be very interesting to see how it works. 🙂

 

Also, would be interesting to do a mite count now and another later, or at the least, assess the brood to see if there is any pms now and again later. 👍

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Thanks for sharing @Katipo  

 

How long do they last in the brood nest? Do you find that the bees chew out the hole around the tooth pick so that the strip drops down?

 

Also, how long have you been using them and how often do you replace them?

 

Thanks!

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12 hours ago, Alastair said:

Nice work Katipo. 

 

Only possible problem is you are using quite a bit less acid than most other people are using, but please update in due course  it will be very interesting to see how it works. 🙂

 

Also, would be interesting to do a mite count now and another later, or at the least, assess the brood to see if there is any pms now and again later. 👍

Hi Alastair, I'm working on a principle of 20grams Oxalic per brood box ie, if I have a strong hive with 2 boxes of brood, say 6 frames in each, I would use 12 strips (40g). What amount are most ppl using now?

49 minutes ago, CHCHPaul said:

Thanks for sharing @Katipo  

 

How long do they last in the brood nest? Do you find that the bees chew out the hole around the tooth pick so that the strip drops down?

 

Also, how long have you been using them and how often do you replace them?

 

Thanks!

Hi CHCHPaul, one thing i forgot to mention is that I put some staples across the top of the strip - you'll see them in pic 6. This seems to help protect them from chewing it around the toothpick and it falling down. How long they last totally seems to depend on the hive, some seem to chew them more than others.

 

I'm currently still doing an Apistan treatment once a year, using up what I had, the last of it is in now, and then I'll endeavour only to use the OA. I had the OA strips in over the summer, and the hives in Feb were looking very healthy and strong, no signs of PMS, but I've put the Apistan in anyway, so will be some time before I'll be able to test the effectiveness of just OA.

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Thank you @Katipo, had always wondered why everyone got caught up in draping strips over frames as I thought it must make them more difficult to remove. Conventional strips are suspended, Apivar I put toothpicks in to make life easier - wouldn't like to do that as a commercial, but with a few hives, hobbyist can do that quite easily. 

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54 minutes ago, Katipo said:

 I'm working on a principle of 20grams Oxalic per brood box ie, if I have a strong hive with 2 boxes of brood, say 6 frames in each, I would use 12 strips (40g). What amount are most ppl using now?

 

Well in that case you are good, Randy Oliver has recommended 18 grams per box, so at 20 grams you are pretty close to his recommendation.

 

Here in NZ the traditional staples have more than that. Wether it's all necessary, don't know.

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6 minutes ago, Renee Patterson said:

Thanks for sharing Katipo, I'm going to have a go!  Two questions - how often would you use this treatment, and do you have any idea of the "shelf life" of the strips once they are soaked in solution?

Keep a close eye on what's happening. They work but not very reliably. Bees tend to move away from the gibs and loss of bees potential. A lot of unknown, good luck.

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I've just been back into the lone hive i keep here in central Auckland. I put OAG strips in in May, as the brood had shifted off the Apistan I'd put in March (I don't want to continue using Apistan, but was using up the last few strips I owned), and there was a few signs of varroa (some DWV). Today, this hive is going really well, 2 x FD boxes of bees, and the Queen laying happily. Attached is a pic of the strips I took out. I'd poked my nose in about a month ago on a nice day, and removed 1 strip which was off the brood. The pic is of the other 4. They are much more chewed now than a month ago, when they were fairly intact. I did a sugar shake, no mites!!, so really happy with how the OAG strips have gone.

strips-sm.jpg

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On 14/08/2020 at 8:04 PM, Renee Patterson said:

Thanks for sharing Katipo, I'm going to have a go!  Two questions - how often would you use this treatment, and do you have any idea of the "shelf life" of the strips once they are soaked in solution?

Hi Renee, I am still experimenting with how often to use the treatment, it is still early days for me. I think I will just regularly test, and once I start getting a few mites showing up, treat. As you will see from my post below, I had some in a hive over winter. They have zero mites, so I will leave them without strips now and keep an eye on levels. I have other hives that have had nothing in over winter, so will be interesting to see how they are going when I can check them. They will no doubt need strips to go in.

 

The shelf life is a good question. I made up 60 strips in April?, and I've used 5, haha. I look after a friends apiary of about 20 hives, so I will put these 4 month old OAG strips in to half of them, and synthetic strips into the other half - that should be an interesting experiment.

 

What I'm most pleased about so far with my strips is that as well as seemingly killing the mites, they also seem to be having no adverse effect on the bees. But like i said earlier, early days....

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On 14/08/2020 at 8:14 PM, Gino de Graaf said:

Keep a close eye on what's happening. They work but not very reliably. Bees tend to move away from the gibs and loss of bees potential. A lot of unknown, good luck.

My findings so far are that the bees are happy to have brood up to the strips, but most often there is nothing behind them. But this also happens with synthetics, and my conclusion is that they can't get access in behind them. I had one strip where there was brood on 1 of the frames against it, but not on the other frame, which makes me wonder if it's not the strip (acid) that stops the brood being laid in there, but getting access when the strips is against the face of the comb?

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