Document Type

Article

Journal/Book Title/Conference

Zeitschrift fuer angewandte Entomologie

Volume

63

Issue

2

Publisher

Verlag Paul Parey

Publication Date

1-1-1969

First Page

186

Last Page

199

Abstract

The cultivated varieties of lucerne are mostly self-sterile and are less capable of automatic tripping, wherefore, their seed yield depends on the activity of the pollinating apoids (BOHART, 1960). The abundance of the pollinators and the composition of the wild bee population, however, is in function of the ecological circumstances. With a view to securing the production of lucerne seed attempts had been made to solve the artificial increasing of the wild bee population. In the western desert areas of the United States the propagation-method of the alkali bee (STEPHEN, 1960, 1965, etc.) and the lucerne leaf-cutter bee (BOHART, 1962, STEPHEN, 1961, etc.) and, in Europe and Canada the method of utilizing the bumble bees (HOLM, 1966) had been worked-out. The artificial application of bumble bees in Hungary does not seem to be promising in growing lucerne seed. Our country's climate is un-suitable for the Nomia species (alkali bees) their propagation, therefore, does not seem to be solvable. The Megachile rotundata FABRICIUS (lucerne leaf-cutter bee) occurs though in Hungary but because of the country being situated in the northern region of its distribution area this species is rear here. MANNTNGER and APJOK (1967) are engaged in artificial propagation of same it remains to bee seen, however, with w h at result, because - so far -the increasing of the lucerne leaf-cutter bee has only been succesful under semi-desert and desert circumstances, i.e. under warmer and dryer conditions than prevailing in Hungary.

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