13764 1 archive 9415 disk0/00/01/37/64 2008-09-18 2009-08-20 14:39:48 2009-08-20 14:39:48 conference_item show 0 en int-conf-ecofruit-2006 Germany, 31.01.2006 - 02.02.2006 Ecofruit - 12th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing, Weinsberg/Germany Staatliche Lehr- und Versuchsanstalt für Obst- und Weinbau in Weinsberg (Baden-Württemberg) yes 0 http://www.ecofruit.net TRUE paper Hetebrügge K. Fieger-Metag N. Kienzle J. Bathon H. Zebitz C.P.W. Zimmer J. pub 8planthealth 7fruit Aphelinus mali, Eriosoma lanigerum, Woolly Apple Aphid The release of Aphelinus mali HALD. from artificial rearing for the control of Woolly Apple Aphid (Eriosoma lanigerum HAUSM.) was tested in field trials. The release of adults proved to be more suitable than the release of cards with parasitized mummies as practised in the first trial. Setting free adult A. mali at the beginning of June reduced the aphid population, though its efficiency was not high enough to prevent damage of the trees totally. The practical applications of A. mali in early spring (after blossom) were not effective because climatic conditions were not suitable enough. The fertility of A. mali depends on temperature and light intensity. The application of Micula (rape oil) and T-S forte reduced the growth of the aphid population effectively. These substances may be used in a combined strategy to improve the successful subsequent release of A. mali. Possible phytotoxic effects, however, must be considered in this context. 2006 published Ecofruit - 12th International Conference on Cultivation Technique and Phytopathological Problems in Organic Fruit-Growing: Proceedings to the Conference from 31st January to 2nd February 2006 at Weinsberg/Germany Boos Markus public 36-42 9116 1 13764 1 application/pdf de public

ecofruit_12th_6.pdf

ecofruit_12th_6.pdf 233125 http://orgprints.org/13764/1/ecofruit_12th_6.pdf