Volume 25, Number 6, 1994
|Page(s)||579 - 584|
A technique for reproduction of Varroa jacobsoni Oud under laboratory conditionsF. Nazzi and N. Milani
Dipartimento di Biologia Applicata alla Difesa delle Piante, Università di Udine, via delle Scienze, 208, 33100 Udine, Italy
Abstract - Varroa jacobsoni females were taken from bee larvae within 0-15 h of capping and transferred to larvae of the same age in artificial cells, 5.8-7.0 mm in diameter, made of beeswax or gelatin. The percentage of fertile Varroa females in gelatin cells was at least 3 times higher than in beeswax cells of similar diameter. The proportion of reproducing females was higher for both materials in narrower cells. In 6.0-mm gelatin cells the average proportion of reproducing females was 62% and the number of offspring per reproducing female 3.5. About 1 adult daughter per 2 starting Varroa mothers was obtained.
Key words: in vitro reproduction / Varroa jacobsoni