Oxalic acid drip

[sarafina]

Ok, that makes sense.

As far as I know I have the same queens that got dripped in Jan - i.e. I haven't re-queened nor found any queen cells from a supercedure.  I have seen no difference in their laying this year from last year when I did not drip.  The yellow hive is going gang-busters like it did last year and the blue hive is slower to build up.  I re-queened the blue one last summer but not because I re-queen regularly but because it had become too aggressive to work.  That set it back of course, so I don't have a full season history like I do my yellow hive but I didn't observe any negative effects on either queen.

I have never used any chemicals in either hive and this is my third year with the yellow hive and second year with the blue one.

[bee-nuts]

good to hear Sarafina.  I remember the posts about your hot colony. Im glad you got it under control.  Hope I never get one like that.  I always worry when I queen with queens from down south.  I have heard of a few incidents with packages here with queens from the south that turn into  vicious monsters.  Its not a matter of if but when it will happen with open mated queens from the south.  I hope to eliminate the need for southern queens next year or year after with wintered queens in nucs.  Not sure how I will do it yet but I hope to figure it out.

[Finski]

Finksi

What month do you do you drip with oxalic acid.  Im thinking late October or November would be a good time. 

The best is to us is  late of Nobember or beginning of December when day temp is 0-5C.

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[Xperiment]

You can find out a lot of useful information about chemical compounds from Wikipedia.     

http://en.wikipedia.org/wiki/Oxalic_acid

I was looking for a compound with an acidity close to this that is soluble in my material that I can make the tetraalkyl ammonium salt of.

Thanks!

Yours
xperiment

[bee-nuts]

That is probably when Ill use it.  I looked at Menards for the acid and could not find it.  All I could find was some liquid wood bleach.  I think Im going to try a couple hardware stores today.  If that fails Ill order it on the net.

[Finski]

You can find out a lot of useful information about chemical compounds from Wikipedia.     

http://en.wikipedia.org/wiki/Oxalic_acid

This has nothing to do with beekeeping

[Xperiment]

You can find out a lot of useful information about chemical compounds from Wikipedia.     

http://en.wikipedia.org/wiki/Oxalic_acid

This has nothing to do with beekeeping

Only in your opinion.


In my opinion it is useful and often interesting to know about the chemicals I'm using.   Knowledge is multiplicative.  The more you know, the more you know.


yrs,
xperiment

[Finski]

Only in your opinion.

I have studied chemistry in univestiry and kept bees 47 years. Yes, I have only my opinions.

Wiki knowledge: oxalic acid is in many plants  ---fine!

Look this list. The number  is percent :  carrot 0,5%,   in honey maximum 0,007%


http://www.nal.usda.gov/fnic/foodcomp/Data/Other/oxalic.html


Human risk
http://www.ema.europa.eu/pdfs/vet/mrls/089103en.pdf


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