Differential susceptibility across honey bee colonies in larval chalkbrood resistance

@article{Jensen2011DifferentialSA,
  title={Differential susceptibility across honey bee colonies in larval chalkbrood resistance},
  author={Annette Bruun Jensen and Bo Vest Pedersen and J\orgen Eilenberg},
  journal={Apidologie},
  year={2011},
  volume={40},
  pages={524-534}
}
Chalkbrood susceptibility of in vitro reared honey bee larvae was investigated. Larvae were grafted from 3–4 colonies headed by pure mated queens of Apis mellifera carnica, A. m. ligustica and A. m. mellifera, respectively. Three day old larvae were fed with different dosages of Ascophaera apis spores and a clear dose-response relationship was shown. Over the whole experiment LD50 estimates ranged from 55 to 905 spores. The response differed significantly (up to a factor ten) between colonies… CONTINUE READING

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