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Free Access Age-related changes in midgut ultrastructure and trypsin activity in the honey bee, Apis mellifera p. 287 D. R. Jimenez and M. Gilliam DOI: https://doi.org/10.1051/apido:19890402 AbstractPDF (1.362 MB)
Free Access Zur Anwendung eines elektronischen Bienenzählgerätes am Flugloch eines Bienenvolkes p. 305 M. Rickli, G. Bühlmann, L. Gerig, H. Herren, H.J. Schürch, W. Zeier and A. Imdorf DOI: https://doi.org/10.1051/apido:19890403 AbstractPDF (638.1 KB)
Free Access Identification des variétés de pommiers par l'enzyme phosphatase acide, son application à l'étude de la pollinisation des vergers p. 317 J.P. Torre Grossa DOI: https://doi.org/10.1051/apido:19890404 AbstractPDF (689.9 KB)
Free Access Membrane-bound iron-rich granules in fat cells and midgut cells of the adult honeybee (Apis mellifera L.) p. 327 H. Raes, W. Bohyn, P.H. De Rycke and F. Jacobs DOI: https://doi.org/10.1051/apido:19890405 AbstractPDF (1.232 MB)
Free Access Sequence of the sexes in the offspring of Varroa jacobsoni and the resulting consequences for the calculation of the developmental period p. 339 S.-M. Rehm and W. Ritter DOI: https://doi.org/10.1051/apido:19890406 AbstractPDF (227.5 KB)
Free Access Geographic variation in Varroa jacobsoni (Acari, Varroidae) : application of multivariate morphometric techniques p. 345 M. Delfinado-Baker and M. A. Houck DOI: https://doi.org/10.1051/apido:19890407 AbstractPDF (864.3 KB)
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