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Author Topic: Help with a possible Varroa cure/safe treatment  (Read 662 times)

Offline aga

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Help with a possible Varroa cure/safe treatment
« on: October 17, 2014, 07:36:34 PM »
Hello to all.

I am very new to Bees, having only been graced by the arrival of a natural swarm this spring.
There were 3 hives, all bought at a charity event, so just One occupied now.

Being Scared (i tell myself Busy) i have only ever opened the hive twice.
Their hive has 22 frames organised in two tiers, basically one hive on top of the other, and just 2 frames with foundation.
All other frames have no foundation.
Kind of Top-bar but it's a frame.
They appear to be doing well, and have built at least two more combed frames for themselves.

The last time i went and looked closely (from the Outside) i was Lucky enough to see a bee being Ejected from the hive.

I captured it, and saw that it's wings were deformed, and it's colouring was wrong - all Dark.

I also noticed a brown thing on it and thought 'Varroa !'.
To examine the bee under the microscope i dosed the bee with Chloroform vapour for about 20 seconds.

The examination showed absolutely No sign of anything other than Bee.
After around 20 minutes of searching, the bee began to recover, and i decided that it was my imagination, and let the bee Go.

Later, on cleaning the glass that i dosed the bee in, i noticed a tiny brown spot.
Again, under the microscope, it proved to be certainly a Varroa mite.

Stone dead Varroa mite.
It has been 3 days now, and the varoa isn't moving, yet the bee recovered.
The poor deformed bee is probably also dead (due to the DWV etc) yet the Varroa was dead after 20 seconds.

Some research brought up a paper by C.R. Ribbands, Harpenden, in 1950 which (almost) scientifically tested bee anaesthesia with Chloroform, Nitrogen and Carbon Dioxide.
Of the three, his data shows the Chloroform to have almost Zero lasting effects.

To prove or disprove the efficacy of Chloroform in selectively killing Varroa with no lasting effect on the bees is
simply to Capture around 100 bees from a varroa infected hive for testing.

I tried with a cardboard box, and ended up 'capturing' four. Comical really.
Two escaped in the lab.
The other two were tested with Chloroform, one 30 secs and one 20 secs exposure.
Examining them, neither had any anomalies at all - no varroa.

They both fully recovered after around 50 minutes, and flew away.

The scientific test will be to capture some bees, expose them to a known volume of Chloroform in a Known volume of air for X seconds, and then purge out the chloroform (blow air into the container slowly enough to Not blow varroa out too) and then allow the bees to recover, and let them leave.

Counting the number of dead varroa and the number of dead bees in these conditions will allows some scientific data to emerge.
(Ribbands' Study and my simple experiments say No bees will die)

Having stumbled on this, i would appreciate some Help in actually capturing a larger number of bees, preferably without destroying the entire hive.

Offline aga

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Re: Help with a possible Varroa cure/safe treatment
« Reply #1 on: October 17, 2014, 07:52:22 PM »
The reason for a larger number of bees in the sample is to ensure that some Varroa are present before dosing.

Offline aga

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Re: Help with a possible Varroa cure/safe treatment
« Reply #2 on: October 18, 2014, 05:16:11 PM »
Oh well.

No interest amongst the USA beekeepers with anything relating to eradicating Varroa.

I'll move on.

Sad - I had hoped that the US was still the home of innovation and radical thinking.

Clearly i was wrong.

Sorry to bother you with something as silly as the continued existence of your food source.


Offline jayj200

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Re: Help with a possible Varroa cure/safe treatment
« Reply #3 on: October 19, 2014, 09:34:43 AM »
try the bio control hyposiss Miles

Offline kathyp

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Re: Help with a possible Varroa cure/safe treatment
« Reply #4 on: October 19, 2014, 11:56:38 AM »
first, we don't know where you are.  second, if you expect immediate responses from people, you may be disappointed.  we are entering the off season for beekeeping here, so not everyone is on all the time.

if you want to keep bees, the first lesson you need is one in patience.  then go put your location in your profile so that we can give you area specific info.
One could not learn history from architecture any more than one could learn it from books. Statues, inscriptions, memorial stones, the names of streets ? anything that might throw light upon the past had been systematically altered. (1.8.85)

George Orwell  "1984"

Offline GSF

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Re: Help with a possible Varroa cure/safe treatment
« Reply #5 on: October 19, 2014, 08:42:40 PM »
aga, welcome, you're in the wrong thread, most folks don't come over here. Try the Main beekeeping forum thread, I guarantee you'll get a response. As a matter of fact we were just talking about varroa..,
When the law no longer protects you from the corrupt, but protects the corrupt from you - then you know your nation is doomed.