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Oxalic acid CARDBOARD STRIPS
Treatment of varroa using strips of cardboard with oxalic acid
9. Kitchen or fire.
Source:
I searching the net, treatments against varroa found a blog about
Chilean beekeepers, I was struck by the treatment performed with oxalic
acid and I contacted with these beekeepers who handle 2,500 beehives,
also have a living honey extraction that here soon see that volume
beekeepers with hives. These beekeepers assured me that the
method works, eliminates 95% varroa not develop resistance or leave
residues in honey or wax and does not harm bees. 20,000 tablets prepared cardboard with oxalic acid to treat hives twice a first and second at 15 days.
Ingredients
1. Oxalic Acid (laboratory quality> 99,60% purity)
2. Glycerine (80% Liquid Food Grade)
Supplies
3. Papier Mache 2 mm thickness (not as it is called there). It is lead, hard color and architects use for models and publishers for book covers.
4. Thermometer (+ 150 ° C)
5. Pot three liters
6. heatproof bowl where tablets fit proportional to the prepared solution.
7. Malla to estilar tablets on bucket (plastic) for recovering surplus solution.
8. zip lock bags or the like to keep the sealed tablets
9. Kitchen or fire.
Preparation for 80 tablets (in proportion to their needs. To get good price glycerin drum must buy 250 kg / 200 liters with 150 kilos of glycerine and serves for 20,000 tablets).
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| http://apiaraucania.blogspot.com.es/2016/01/monoxalato-como-control-de-varroa.html |
- Cut the plate / sheet cardboard stone tablets 3cm x 35 cm (80 tablets should leave per sheet) (we buy cartons cut into tablets on paper distributor that sells us the board and has guillotine).
- Heat the pot on the stove or fire 1 kg of Glycerine to 65 ° C (is it gets translucent). Measure with thermometer.
- Add 600 grams of oxalic acid (the temperature should drop to about 30 ° C to 40 ° C and the solution should be put opaque).
- Continue heating until the temperature returns to 65 ° C (getting back translucent solution). No problem to be passed while temp is kept under 110 ° C; on that temperature steam is formic acid (eye with the lungs and eyes).
- Remove from heat soak solution and 80 tablets in ad hoc container. Not clear how long to leave them soaking to impregnate well but before the board gets soft and deshazga. You can wear something red solution to free dyes carton.
- Estilar the excendentaria solution over a bucket to retrieve it.
- Once estiladas tablets, stored in ziplock bags or the like until use. (Still we do not know the duration thereof).
Application
They should put 4 tablets for 10 frames hives with bees well distributed in the brood chamber. The tablet is folded in half and hung on frames "enveloping / surrounding" chicken breeding.
It should be repeated after 15 days because it only kills the varroa foréticas.
precautions
Organic acids are very corrosive to human skin. Use nitrile gloves and in case of contact with skin, wash with water and then apply on the affected area some flour rich in starch.
Also wear safety glasses to avoid splashing into eyes.
If heated above 110 ° C acid vapors are released, so it is advisable to use anti gas mask oxalic acid.
If you work carefully and open environment should be no problems.
Source:
http://apiaraucania.blogspot.com.es/2016/01/monoxalato-como-control-de-varroa.html
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