Evaluation on therapeutic efficiency of the preparation Apiform for varroa and chalkbrood disease control
1998
Jendrejak, R. | Kopernicky, J. (Research Institute of Animal Production, Nitra (Slovak Republic))
The therapeutic utilization of 85% formic acid, chemically pure (edible), against Varroa jacobsoni Oudem. and ascosphaeriose was evaluated in this work. The preparation Apiform ad us. vet. was used. It was developed in RIAP - the Institute of Bee-keeping. The acid was applied by means of evaporation from the cover through wick in the centre of honey chamber. One pack with 40 ml of acid is used in each honey chamber. It evaporates freely. The optimum period of evaporation are 4 - 5 days. This preparation was highly effective in the tests with both infections. The treatment of varroasis was effective to 99.2% with two applications and after the removal of a sealed drone brood. The efficiency in ascosphaeriose treatment was 100% in 1994, 87.9% in 1997. The affected combs were removed and bottom boards of hives were cleaned before the medicament was used. There were noticed no excessive disturbances or injury to colonies during the tests. The formic acid does not impair the hygienic parameters of honey in the applied amounts and therefore it can be used in colonies during the summer production period if the honey flow is not in progress
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