Development of Varroa jacobsoni in colonies of Apis mellifera capensis and Apis mellifera carnica
نویسندگان
چکیده
Honey bee colonies (Apis mellifera carnical, infested with Varroa jacobsonl were de-queened and divided into 2 subunits. Each pair of subunits were requeened with an inseminated A m capensis and A m carnica queen. The development of the mite population was monitored by determining the number of mites in samples of brood, and worker bees, and lhe number of dead mites on the bottom board of the hive. The mite population showed a restricted development in A m ca-pensts colonies. Varroa mites were found at surprisingly low frequencies on adult worker bees of the Cape honeybee. A more efficient grooming activity, in combination with the short post-capping stage of the brood, may be the central factors for the restricled development of the mite population in 4 m capensis.
منابع مشابه
Heritability of the postcapping stage in Apis mellifera and its relation to varroatosis resistance
Aasrancr: Two African races of the honey bee (Äpis mellifera capansis and A. m. scutellatal have a signilicantly shorter postcapping stage of worker brood than A. rn. carnica. An average within-race heritability of this character is estimated as h2 = 0.8. Reciprocal crosses between the races show that the duration of the postcapping stage also is maternaffy affected (m = 0.23). As the reproduct...
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