Extended Release Oxalic Acid [Expert How-To] 

Thank you both Nathan and Dick for taking the time to make and post this video. It was VERY helpful. 👍👍

Another great video Nathan! Dick is a wealth of knowledge and our club is lucky to have him!!!

Thank you Dick for taking the time to do this you tube video. It was very informative and explained the steps where in the past where I been confused.

Great video, this is the kind of nuts and bolts information needed.

Very good info and presented well

really appreciate that you brought up scalability. I'm currently sitting at a hundred hives and don't have quite the time to do small batch treatment.

Wow! Awesome video! Definitely will be looking into this. Thank you!!!

I really enjoy your videos with Dick loads of info, thank you very much Nathan.👍

Good info

Thanks Nathan, good information there. Thanks for pointing out, the OA extended release is a good tool for maintaining lower mite population, but not necessarily one for dropping population. I learned the hard way early on when shop towels were 1st being experimented with. You're doing a great job, and I for one am greatful and appreciate how much time you youtubers spend posting these videos.

Great job guys!!!!!

So much information. Great video guys, I'll be trying this when the drones start flying. This fall I tried Thymovar on 2 colonies, they are healthy as of today.

Super helpful video and links! Thank you both!

I did my whole yard last Aug with a rate 75g OA & 75g food grade glycerin per 20 frames in double deeps on cut up sponges, same ratio on my double deep nucs and single nucs, basically actual acid was 75g - 20 frames, 37.5g - 10 frames and 18.75g - 5 frames, I used an portable electric hotplate and candy thermometer a stainless steel saucepan to 155f. my solution went clear at 148f. here's a great tip for small beekeepers like myself, LOCK&LOCK make rectangular box that's perfect for 1/2 -1/4 & 1/8 sized sponges, I just put all cutup sponges in the LOCK&LOCK box slowly poured the hot liquid over them added the lid and flip the box a few times in the next 24 hours til all was absorbed and put on the next day my largest & strongest colony just swarmed into a 10 frame new box I had setup to put a nuc into Feb 23rd 2023, I go 3 more splits off the double deep they left, this colony still had the sponges on it and center circle 1/3 of both sponges still had original color of the sponges which tell there was still some OA present. Great video guys.

Really interesting. Many thanks for posting

I love to see others involved in the science behind bees. I am always doing something different.. I am currently working on a multiple colony hive, some have tried, but I am looking for a solution to get my flow super filled. It seems to be a challenge for me up North.

Thanks for the tutorial. I’ll be trying this out for sure.

I'm glad you showed this. Especially since they will be likely be allowed in Canada very soon :)

Several commentors addressed the use of the PIG brand of oil absorbent pads and my remark was that they were fairly costly compared to the other brands of pads that the Grainger Company sells. The cost is not an issue if you are using small quantities and you may already have some in your garage or shop. You might also be able to buy small quantities or these at auto parts stores. Any cellulose based pad would probably work, so give them a try. If the bees do not chew them up, then let us know. Dick Brickner

Great job…I will definitely be trying this

We’ll done

Very informative and interesting. Thank you both for the video.

Great information for the control of mites. Looking to add this to my maintenance tools. Looking at the size of the pot being used to heat the jars of water for the mixture, the induction plate seems bigger than the unit in your Amazon link. If so, what unit is being used? Also, Dick mention Brady pads, which one was he referring to? I only ask because the one in the Amazon link is currently not available. Thanks for the videos, and keep sharing.

This seems to be the next treatment for beekeepers. I wonder how long before we can use it in Ohio.

Great demo! I The useful life of different carrier materials was helpful to me. I love the idea of swedish shop towel lasting longer, though they may be more expensive than shop towel. Do you or Dick have any experience with hanging oae between frames?

When it switched to Dick showing the roll from last year I was confused looking for where the shop towels went lol

Interesting lot of videos Nathan , the journey to become professional begins in earnest, will be watching all throught the year. I have a question ,may be will get answered, if a bee consumes Crystallised honey , what happens ? Peter 🇦🇺

Did you run tests to know how many sponges would soak up X amount of glycerin? For example if I use 1 pound of Oxalic and 1 pound of glycerin, i need that to be evenly soaked into 9 towel units so that I know they are 50gr each. Or 18 at 25g each so that I can know what to put in the hive. Do you have a reasonable estimate of how much glycerin either a full or half sponge can hold? Or...do these sponges hold a lot more than the 2 pounds and therefore i only need to worry about even distribution because they will soak all of the solution up easily?

I think my concern is… when this becomes legal, will it be allowed to be used with supers on. The oxalic acid ( apibioxal) you describe is the expensive product. The only reason this would be legal is because a company wants to make money on it. Oxalic acid is oxalic acid no matter how it is stored.

Thank you for video and work that went into it. SpillTech Universal Maximizer pads come in two thickness light and heavy. Whice one are you using?

Are the maximizer pads lightweight medium or heavy weight? The link for Amazon is outta stock… I live near new pig manufacturing I’m not if there’s an outlet or someone I know might be able to hook me up. Thanks again for the info.

Would you suggest using these sponges in a 5 frame nuke if so what size tab would you use

Hey Nathan - thanks for the informative video. Was there a link you were going to include with info on how to legally do this. Especially with regard to what Dick mentioned with distributing the finished pads to their club members.

I don't know what they are made of but I wonder if pig mat would work? I think it's similar to the maximizer pads.

very interesting, would this be something that can be integrated into a swarm box as well? that way treatment begins right away or would the bees avoid the box?

Very good info. How many pads were in the demo. He didn't say. As I understand it the 1:1 ratio was 1 pound of OA to one pound of glycerin to how many pads? Thanks again.

It won't be long before this is legal nation wide.

With the 1 lb. OA and 1lb. Glycerin, how many maximizer strips did that do? Thanx

I wonder if any oil absorbent pad other than maximzer brand would work as long as you applied the solution to the same size towel

can you tell me how many of the sweedish sponges you use for the 1 pound OA mixture?...

I don't get it. The 12 half shop towels gets how many grams or ounce of oxalic acid to get the recommended dose per half towel ?

Can I ask how many 4"fish by 7 1/2" ish pads are in a 2# batch?

Do you have to heat up the sugar - oxalic mixture also?

Dick is great wish u did more videos with his maintence of his hives and all that.

Maximizer pads contain fire retardants. Bee careful. Read up on it.

Are the Maximizer pads heavy or light weight?

Has anyone ever tried pig mat absorbent sheets?

Please don’t do this in winter. We learned a hard lesson. The Swedish sponges hold moisture in the hive. We lost 1/3 of our hives. The bees were wet and dead clustered under the sponges.

What about Treatment FREE

You make me nervous adjusting your glasses with oa on your gloves