caa a22 4500 469060417 CHVBK 20180323132855.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF01218572 doi (NATIONALLICENCE)springer-10.1007/BF01218572 Observations on the initiation and stimulation of oviposition of the Varroa mite [Elektronische Daten] [Joop Beetsma, Kees Zonneveld] FemaleVarroa mites were collected from adult bees and were classified as swollen or not swollen. After introduction of these mites into recently sealed worker brood cells the average number of offspring of reproducing swollen mites was similar to that of naturally invaded mites, but the non-swollen mites produced a significantly lower number of offspring. This suggests that the oviposition of adult mites is stimulated by a preceding stay on adult bees. When (non-swollen) mites collected from brood cells were kept for 35 days in Eppendorf test tubes containing a larva or a pupa, their reproduction was similar to that of swollen mites. Contact of young mites, collected from brood cells, with adult bees was not essential for the initiation of oviposition. However, the number of offspring of reproducing mites, even after a third or fourth introduction into brood cells, was as a rule lower than that of mites that had been in contact with adult bees. The period of artificial introduction into sealed brood cells proved to be essential for subsequent reproduction. When introduced 48-52 h or 72-76 h after cell sealing, the mites did not produce eggs. When introduced 0-4 h after cell sealing a high percentage of the mites reproduced. Contact of the mites with a spinning larva seems necessary for initiation of oviposition. Elsevier Science Publishers B.V., 1993 Beetsma Joop Department of Entomology, Wageningen Agricultural University, PO Box 8031, 6700 EH, Wageningen, Netherlands aut Zonneveld Kees Department of Entomology, Wageningen Agricultural University, PO Box 8031, 6700 EH, Wageningen, Netherlands aut Experimental & Applied Acarology Kluwer Academic Publishers 16/4(1992-12-01), 303-312 0168-8162 16:4<303 1992 16 10493 https://doi.org/10.1007/BF01218572 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01218572 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Beetsma Joop Department of Entomology, Wageningen Agricultural University, PO Box 8031, 6700 EH, Wageningen, Netherlands aut NATIONALLICENCE 700 1- Zonneveld Kees Department of Entomology, Wageningen Agricultural University, PO Box 8031, 6700 EH, Wageningen, Netherlands aut NATIONALLICENCE 773 0- Experimental & Applied Acarology Kluwer Academic Publishers 16/4(1992-12-01), 303-312 0168-8162 16:4<303 1992 16 10493 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer