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Der Einfluß der Temperatur auf die Giftwirkung des DDT bei Honigbienen (Apis mellifica L.)

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Summary

The action of DDT on honey-bees depends to a high extent on the temperature (see graph). At 36°C (breeding temperature) DDT has a far weaker insecticidal action than at 20°C (laboratory temperature). This shows that the insecticidal properties of DDT diminish with the raise of temperature.

This resistance to DDT at higher temperature is most propitious for bee-keeping and also explains the fact why in agricultural practice there has been no corroborated case of poisoning of bees, though in laboratory tests DDT avered itself to be toxic to bees.

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References

  1. R. Wiesmann, Neue Versuche mit Arsenersatzstoffen im Obstbau, Schweiz. Z. Obst- u. Weinbau (1942); Weitere Versuche über Gesarol und Honigbienen, Schweiz. Z. Obst- u. Weinbau (1942).

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  8. S. E. McGregor andC. T. Vorhies, Beekeeping near cotton fields dusted with DDT. Bee Culture Investigations Beltsville Research Center (1947).

  9. C. G. Butler, The British Beekeepers Association: Abridged Minutes for Publication (1946).

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Authors and Affiliations

  1. Biologische Laboratorien der J.R. Geigy AG., Basel

    E. Häfliger

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  1. E. Häfliger
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Häfliger, E. Der Einfluß der Temperatur auf die Giftwirkung des DDT bei Honigbienen (Apis mellifica L.). Experientia 4, 223–225 (1948). https://doi.org/10.1007/BF02155372

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  • DOI: https://doi.org/10.1007/BF02155372

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