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The Use of Chitosan to Reduce the Negative Impact of Chemicals on Bees Based on the Example of Amitraz

Abstract

The effect of chitosan on the survival of bees treated with the chemical acaricide amitraz at a 50% lethal dose (LD50) of 10 μg per bee was studied. It was found that the addition of chitosan succinate and low molecular weight chitosan during the first 8 days prior to treatment with amitraz in a ratio of 1 : 5 at a dose of 0.144 g per 1 L of 60% sugar syrup at a rate of 1 L of sugar syrup per 10 000 bees (II experimental group) led to a 1.45-fold increase in bee survival by the end of the observation period (30 days) as compared with the control group, which received only sugar syrup, and a 4.45-fold increase as compared with experimental group I, which received sugar syrup and was treated with amitraz on the ninth day. At the same time, the life expectancy of bees increased by at least 5 days as compared with experimental group I, with an average life expectancy of bees of each generation in the summer period of 35–40 days.

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Correspondence to M. A. Frolova.

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Statement on the welfare of animals. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.

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Albulov, A.I., Frolova, M.A., Zelinskaya, E.I. et al. The Use of Chitosan to Reduce the Negative Impact of Chemicals on Bees Based on the Example of Amitraz. Appl Biochem Microbiol 58, 343–345 (2022). https://doi.org/10.1134/S0003683822030036

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  • DOI: https://doi.org/10.1134/S0003683822030036

Keywords:

  • chitosan
  • chemical acaricide amitraz
  • varroatosis
  • honey