Hetebrügge, K.; Fieger-Metag, N.; Kienzle, J.; Bathon, H.; Zebitz, C.P.W. and Zimmer, J. (2006) Biological Control of Woolly Apple Aphid (Eriosoma lanigerum HAUSM.) with Aphelinus mali HALD. In: Boos, Markus (Ed.) 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, pp. 36-42.
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.
|EPrint Type:||Conference paper, poster, etc.|
|Type of presentation:||Paper|
|Keywords:||Aphelinus mali, Eriosoma lanigerum, Woolly Apple Aphid|
|Subjects:|| Crop husbandry > Crop health, quality, protection|
Crop husbandry > Production systems > Fruit and berries
|Research affiliation:||International Conferences > 2006: Ecofruit|
|Deposited By:||Tagung, Ecofruit|
|Deposited On:||18 Sep 2008|
|Last Modified:||12 Apr 2010 07:37|
|Refereed:||Peer-reviewed and accepted|
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