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Control of the apple sawfly (Hoplocampa testudinea Klug) with extracts from Quassia amara L.: Quality and combination

Kienzle, Jutta; Kopp, Barbara and Schulz, Christof (2002) Control of the apple sawfly (Hoplocampa testudinea Klug) with extracts from Quassia amara L.: Quality and combination. [Regulierung der Apfelsagewespe mit Auszugen aus Quassia amara und Kombination mit NeemAzal-T/S.] In: Boos, Markus (Ed.) Ecofruit - 10th 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. 28-34.

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Summary

In the last years the contro I 01 the apple sawfly Hoplocampa testudinea Klug was not efficient in organic Iruit growing. This was due to quality problems 01 the "Quassia wood" used lor the treatments. First orientating criteria based on one 01 the active ingredients, Quassin, were established lor the quality 01 "Quassia" preparations. A lield test on apple sawfly showed, that the quantity 01 Quassin per ha required lor good sawfly control is about 12-18 9 Quassin. In the nex! years, more active ingredients (Le. Neoquassin) have to be included in the quality criteria and evaluated by biotests. Only this way, reliable recommendations can be given to the growers.
NeemAzal-T/S was effective only against the secondary inlestation. Thus, it can be recommended only in situations with low inlestation. The combination with Quassia (12 9 Quassin/ ha) did not give better results than Quassia alone. Antileedant effects have to be considered and may provocate antagonistic effects.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Sawfly, Quassia amara, Quassin, Neoquassin, Neem, apple
Subjects: Crop husbandry > Crop health, quality, protection
Crop husbandry > Production systems > Fruit and berries
Research affiliation: International Conferences > 2002: Ecofruit
Related Links:http://www.ecofruit.net
Deposited By: Tagung, Ecofruit
ID Code:14592
Deposited On:23 Oct 2008
Last Modified:12 Apr 2010 07:38
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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