Determination of residues in honey after treatments with formic and oxalic acid under field conditions

  title={Determination of residues in honey after treatments with formic and oxalic acid under field conditions},
  author={Stefan Bogdanov and Jean-Daniel Charri{\`e}re and Anton Imdorf and Verena Kilchenmann and Peter Fluri},
Formic acid and oxalic acid field trials for control of Varroa destructor were carried out in autumn according to the Swiss prescriptions during three successive years in different apiaries in Switzerland. The following parameters were determined in honey that was harvested the year after treatment: formic acid, ox- alic acid and free acidity. The following range of values were found in honeys of untreated colonies: formic acid, from 17 to 284 mg/kg, n = 34; oxalic acid, from 11 to 119 mg/kg, n… 

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