more late Varroa? Second treatment?

[itma]

... i presume they mean temporary "emulsifying" by agitation/vortexing of some sort rather than a stable emulsion as per HM recipe.

Yes, its my presumption that they didn't add anything to maintain the emulsion (like lecithin), steered by the mention of the separation problems - "Essential oil components can
be difficult to maintain in solution or suspension in aqueous media
such as sugar syrup or liquid protein diet due to their lipophilic
characteristics and low solubility in water. We noted that the oils
were difficult to keep in suspension when not immediately consumed,
especially in cold weather when both dietary consumption by the
colony and compound solubility in water markedly declined"

 

[drstitson]

solubilities:

Carvacrol - 1250mg/l
Thymol - 900mg/l

So likely that rate of attrition of thymol from any suspension will have been faster than the carvacrol.

 

[drstitson]

from the italian forum - new thread today:

"Hello guys, I would like to share current situation of beekeeping in the province of Bergamo: DISASTER! almost all beekeepers are without bees! I mean that people who had 60 hives in July now has 10, not even beautiful ones! those who started with a dozen hives must now be content with 2 or 3! even know of a professional starting with 250 hives and now has thirty! the situation is the same even on brianza them in a Provincial "Conference" about Varroa, for the next year even spoke of a double block brood! Varroa is the cause and all other evils that follow! Obviously some beekeepers are exceptions, but are few! Many beekeepers have also complained about this fact: (they say) "the hives were clear of varroa, but in the last months of the year, however, went mysteriously depopulated and they speculate that the cause is a virus disease transmitted beforehand by the varroa present in large numbers. i say that perhaps it could also be Nosema ceranae. and now is the winter ..."

 

[Hivemaker.]

i say that perhaps it could also be Nosema ceranae. and now is the winter ..."

Bet he's not far out with that,people are so concerned about varroa they are forgetting about nosema,especially this nosema.

http://www.beekeepingforum.co.uk/showthread.php?t=14549

 

[Headnavigator]

Bet he's not far out with that,people are so concerned about varroa they are forgetting about nosema,especially this nosema.

http://www.beekeepingforum.co.uk/showthread.php?t=14549

Is there reasonable hope that if colonies have been given a good stuffing of your thymol recipe syrup in Sept/Oct that nosema will be under control? What's the next step?

 

[Hivemaker.]

Is there reasonable hope that if colonies have been given a good stuffing of your thymol recipe syrup in Sept/Oct that nosema will be under control? What's the next step?

Yes, i have found this to be the case,as long as fed correctly,next step is hope they come out fit and strong in spring...and produce you lots of honey and no swarming.

 

[mbc]

from the italian forum - new thread today:

"Hello guys, I would like to share current situation of beekeeping in the province of Bergamo: DISASTER! almost all beekeepers are without bees! I mean that people who had 60 hives in July now has 10, not even beautiful ones! those who started with a dozen hives must now be content with 2 or 3! even know of a professional starting with 250 hives and now has thirty! the situation is the same even on brianza them in a Provincial "Conference" about Varroa, for the next year even spoke of a double block brood! Varroa is the cause and all other evils that follow! Obviously some beekeepers are exceptions, but are few! Many beekeepers have also complained about this fact: (they say) "the hives were clear of varroa, but in the last months of the year, however, went mysteriously depopulated and they speculate that the cause is a virus disease transmitted beforehand by the varroa present in large numbers. i say that perhaps it could also be Nosema ceranae. and now is the winter ..."

Poor buggers, it could be us next....

 

[alanf]

from the italian forum - new thread today:

"Hello guys, I would like to share current situation of beekeeping in the province of Bergamo: DISASTER!... "

That does sound terrible, and all the examples are high and uniform loss rates. Any idea what treatments are used in Bergamo?

 

[drstitson]

"I mean that people who had 60 hives in July now has 10, not even beautiful ones!"

just to clarify - that refers to "strong colonies" not the beekeepers themselves!!!!

"Any idea what treatments are used in Bergamo?"

presume either "the strips/sticks" (the out of date backwoodsmen) or oxalic sublimation (the clue here is "for the next year even spoke of a double block brood!").

 

[Finman]

.
Varroa has been so long among us that we should have experience what it does to hives.

I have never heard that it cleans whe whole district out of bees.

And how mite can surprise some professional which has hundred of hives.

Yes I know cases that the guy has had missfortune in treating and a high percent of hives will perish. But several cases at sae district.

It is easy to remember how many CDD cases were in UK when the disease appeared.

 

[drstitson]

"oxalic sublimation (the clue here is "for the next year even spoke of a double block brood!")."

just to clarify further - we are talking 18-28 days absence of new brood PLUS oxalic treatment immediately after. And this done late summer or autumn!!!!

http://www.federapi.biz/images/Tecniche/metodi-blocco-covata.pdf

The only plus as far as i can see is that the italians cage the queen on the comb and only destroy the small amount of brood she produces rather than sacrificing 3 frames of brood (and thus bees; plus the resources required to raise them and the cost in terms of exhausting nurse bees).

 

[alanf]

"oxalic sublimation (the clue here is "for the next year even spoke of a double block brood!")."

just to clarify further - we are talking 18-28 days absence of new brood PLUS oxalic treatment immediately after. And this done late summer or autumn!!!!

http://www.federapi.biz/images/Tecniche/metodi-blocco-covata.pdf

Something like this version in English:

http://www.apimobru.com/en/ppe/pdf/...age of the queen for restriction of brood.pdf

The treatment method appears to be caging the queen to prevent laying for one brood cycle. The methods described suggest variants of timing but the shortest period is 18 days. At the end of confinement the treatment mentioned by name is 'dripping oxalic'. Timing: "restriction anyway must take place before the cluster (a month in advance)."

 

[Finman]

"oxalic sublimation (the clue here is "for the next year even spoke of a double block brood!")."

just to clarify further - we are talking 18-28 days absence of new brood PLUS oxalic treatment immediately after. And this done late summer or autumn!!!!

when are you going to rear winter bees if the queen is out of game?

.

 

[drstitson]

when are you going to rear winter bees if the queen is out of game?

.

Bullseye - my point exactly.

brood block in end half of main summer flow is spot on - no impact on foraging population plus time to treat (OA or 1 round of thymol) and then comfortably build up for winter.