apiguard in November?

[The Cumbrian]

Bees are not really meant to be messed about with in the depths of winter. I only do oxalic acid if I really think there is a need for it.

I would tend to agree but I was a little disconcerted at the way most people seemed to dwell on the pouring ACID rather than the disturbance or the chilling.

To keep mentioning acid when you know you are using Oxalic acid seemed a little superfluous to say the least. Unless that is they kept mentioning it in the hope that laying stress on the acid nature would help turn people to their point of view.

 

[itma]

... Bees are not really meant to be messed about with in the depths of winter. ...

Our bees aren't really meant to have problems with a parasite that developed alongside a different species of bee.

They aren't "really meant" to have any anti-varroa treatment.
But they do need those treatments.

 

[itma]

To keep mentioning acid when you know you are using Oxalic acid seemed a little superfluous to say the least. Unless that is they kept mentioning it in the hope that laying stress on the acid nature would help turn people to their point of view.

Some people seem confused between the Health&Safety aspects of using a 3.2% syrup and making up your own syrup from pure Oxalic Acid.
Two rather different things.

 

[Finman]

One guy in Beesource forum told that trickling killed all his 12 hives. He made 30% oxalic liqiud. But how it is possible to make 1:1:1 ?

 

[greatbritishhoney]

Our bees aren't really meant to have problems with a parasite that developed alongside a different species of bee.

They aren't "really meant" to have any anti-varroa treatment.
But they do need those treatments.

Not sure I understand your point.
I'm not saying don't treat....I'm saying treat as your bees need.
When considering opening up your hive in Dec/Jan you should have a clear reason for doing so and have weighed up the risks - I.e - is the disruption/potential chilling etc likely to do more damage than the varroa?
Then treat (or don't treat) accordingly.
I can't imagine this is really in dispute?

 

[Hivemaker.]

One guy in Beesource forum told that trickling killed all his 12 hives. He made 30% oxalic liqiud. But how it is possible to make 1:1:1 ?

10% is a little high as well.

Short term negative effect of oxalic acid in Apis mellifera iberiensis

R. MartÃ*n-Hernández1*, M. Higes1, J. L. Pérez1, M. J. Nozal2, L. Gómez2
and A. Meana3
1
Centro ApÃ*cola Regional. Junta de Comunidades de Castilla-La Mancha.
19180 Marchamalo (Guadalajara). Spain
2
Departamento de QuÃ*mica AnalÃ*tica. Facultad de Ciencias. Universidad de
Valladolid.
47005 Valladolid. Spain
3
Departamento de PatologÃ*a Animal I (Sanidad Animal). Facultad de
Veterinaria.
Universidad Complutense. 28040 Madrid. Spain

Abstract
The toxic effect of oxalic acid (OA) on Apis mellifera iberiensis was
studied using field and laboratory assays. Bee
deaths were higher in OA treated hives than in control hives.
Pathological repercussions of topical application of 10%
OA were observed in different internal honeybee organs. After 24 h,
there were severe alterations in the ventricular
epithelial layer while by 48 h there was clearly seen degeneration of
the rectal epithelium. Irreversible lesions appeared
at 48 h in different bee organs with increased cellular damage after 72
h. Indications are that the effect of the OA
continues after initial contact and causes permanent lesions in
digestive and excretory organs. Tissue distribution of
the acid in different bee organs, after topical administration, suggests
that some of the acid is ingested, in some way,
by the bee.

 

[Finman]

Some people seem confused between the Health&Safety aspects of using a 3.2% syrup and making up your own syrup from pure Oxalic Acid.
Two rather different things.

many people are confused even if they handle even oxalic acid.

I have noticed that very few understand what means amino acids compared to proteins.

But if somebody explains to me "windows programming", it is Hebrew to me.

 

[oliver90owner]

Thankyou very much nose ma, your apology was very much appreciated.

'Universal indicator' strips have been around for about 40 years, perhaps a little more. When I was at school, we had to use pH specifics and narrow range strips were just being developed.

There are, unfortunately, lot of misconceptions as the English language becomes more 'sloppy'. Cells become batteries (even hens have to differentiated as 'non-battery' these days, because so many think 'hens' and 'batteries' go together) and 'shallows' are assumed to be 'supers' by many, within beekeeping. A shame really, but that is life, I suppose.

 

[Skyhook]

One guy in Beesource forum told that trickling killed all his 12 hives. He made 30% oxalic liqiud. But how it is possible to make 1:1:1 ?

Which is why I intend to buy mine ready mixed by someone who won't get the decimal point in the wrong place.

And by the way, for anyone who hasn't used them before, I can recommend the little squeezy bottles that measure a 5ml dose.

 

[Finman]

.
Bees ingest some oxalic acid. When acid was labeled with radioactive carbon,
radioactivity appeared to the respiration air.

 

[Monsieur Abeille]

But if somebody explains to me "windows programming", it is to me Hebrea.

Its easy Finman -

Win - Victory
Doze - To Sleep or Meditate
Pro - in favour
Gram - something small or light
Ming - An ancient dynasty famous for vases

SO

Its the dreamlike state of joy achieved with winning a small ancient vase -

something we occasionally do when playing cricket against the Australians.

Just don't ask me to explain cricket.

 

[For want of a better word]

Not sure I understand your point.
I'm not saying don't treat....I'm saying treat as your bees need.
When considering opening up your hive in Dec/Jan you should have a clear reason for doing so and have weighed up the risks - I.e - is the disruption/potential chilling etc likely to do more damage than the varroa?
Then treat (or don't treat) accordingly.
I can't imagine this is really in disupte?

Where does vaporization of OA fit into this scheme of things, not being made up into a noxious syrup that the bee ingests, surely then can not cause trachea and Malpigian bodies to puncture?

 

[Nose Ma]

Thankyou very much nose ma, your apology was very much appreciated.

No problem - when one is wrong, it's best to admit it.

I think it's a "Hoover" versus "vacuum cleaner" issue!

 

[For want of a better word]

Its easy Finman -

Win - Victory
Doze - To Sleep or Meditate
Pro - in favour
Gram - something small or light
Ming - An ancient dynasty famous for vases

SO

Its the dreamlike state of joy achieved with winning a small ancient vase -

something we occasionally do when playing cricket against the Australians.

Just don't ask me to explain cricket.

 

[Finman]

Its easy Finman -

Win - Victory
Doze - To Sleep or Meditate
Pro - in favour
Gram - something small or light
Ming - An ancient dynasty famous for vases

SO

Its the dreamlike state of joy achieved with winning a small ancient vase -

something we occasionally do when playing cricket against the Australians.

Just don't ask me to explain cricket.

your pills Monsieur. Yes those. Right. That's it.

Good boy!

 

[oliver90owner]

I think it's a "Hoover" versus "vacuum cleaner" issue!

Not really, I don't think.

Generic terms are found all over the place, but don't have a place in Chemistry. If I were to try to dissolve a precious metal (not silver) in any 'acid' the results may not be very good. I would actuallyneed a concentrated oxidising acid (Aqua Regia fits the bill, but bubbling chlorine through hot concentrated hydrochloric acid is the common method on a larger scale, of course). Yes, one needs to know a little more than just the pH where chemicals are concerned.

Litmus, as an indicator changes colour around a very 'safe' value of seven. If it is red you could be concerned with a concentrated strong acid and if blue it could be something extremely caustic like oven cleaner. It would still change to red in vinegar or blue in washing soda. Safety issues and getting it right go hand in hand with things such as these.

RAB

 

[Nose Ma]

Generic terms are found all over the place, but don't have a place in Chemistry.

Please note the joke here:

I assume, therefore that we should be trickling ethanedioic acid to kill varroa, rather than oxalic?

Have a good weekend, I am off to enjoy mine.

 

[Skyhook]

Its easy Finman -

Win - Victory
Doze - To Sleep or Meditate
Pro - in favour
Gram - something small or light
Ming - An ancient dynasty famous for vases

SO

Its the dreamlike state of joy achieved with winning a small ancient vase -

something we occasionally do when playing cricket against the Australians.

Just don't ask me to explain cricket.

 

[BBG]

your pills Monsieur. Yes those. Right. That's it.

Good boy!

Are those the cyanide type Finman?

 

[Finman]

.
Placebo, I think.