Transfer from cell to cell. How long do Varroa mites stay on adult bees?
1991
Calis, J.N.M. (Amsterdam Univ. (Netherlands). Dept. of Pure and Applied Ecology) | Boot, W.J. | Beetsma, J.
In broodless, mitefree colonies Varroa mites were introduced from emerging worker brood, which was placed, into the colony for one day at the start of the experiment. Combs containing larvae of 3 to 4 days old were placed into the colony daily to determine when mites invaded brood cells after their introduction into the colony. Invasion into cells appeared to depend on the number of mites present on adult bees in the colony: every day about the same fraction of mites entered the brood cells. Mites already invaded brood cells during the first day after their introduction into the colony, but even after three weeks mites were still found on the bees. In three replicates of the experiment 50 % of the mites invaded brood cells within 2.1, 9.1 and 4.3 days respectivily. The rate of mite invasion appeared to depend on factors determined by the experimental colony.
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