title: Nesting Efectiveness of Red Mason Bee <i>Osmia rufa</i> (L.) in Reed Stalk <i>Phragmites australis</i> (Cav.)
abstract: Abstract The research enabled the optimal parameters of reed stalks Phragmites australis (Cav.) Trin. ex Steud, to be determined and then be used for rearing red mason bees ( Osmia rufa L.). During research conducted in 2015 and 2016, 3,293 reed stalks were occupied by red mason bees, and 19,461 nest cells were counted in the stalks, of which there were 16,222 non-parasitized larvae. The mean weight of one cocoon was 0.085 g. The mean length of the reed stalk occupied by the red mason bee was 16
journal: Journal of Apicultural Science