Proceedings 2004

Control of the apple sawfly Hoplocampa testudinea Klug in organic fruit growing and possible side effects of control strategies on Aphelinus mali Haldeman and other beneficial insects
Kienzle, J. ; Zimmer, J.; Klopp, K.; Maxin, P.; Yamada, K.; Bathon, H.;
Zebitz, C.P.W.; Ternes, P.; Vogt, H.

Sex pheromones and plant volatiles for control of orchard insects0

Peter Witzgall

Control of Grapholitha lobarzewskii in the region Bodensee
Barbara Kopp, Franz Ruess

Ryania Speciosa: an insecticide for organic orchards?
Markus Kelderer , Manuela Sgarbossa, Gudrun Schönweger, Ellen Elias, Zelger Roland, Johann Santer, Hermann Stuppner

Attractive plant volatiles as a control method against apple fruit moth
(Argyresthia conjugella Zell.)?

Gunnhild Jaastad, Geir K. Knudsen, Sverre Kobro, Anna-Carin Bäckman, Peter Witzgall and Marie Bengtsson

Efficacy of different insecticides and a repellent against the European pear sucker (Cacopsylla pyri)
Claudia Daniel and Eric Wyss

Controlling cherry fruit-fly (Rhagoletis cerasi L.)
Karlheinz Geipel, Wolfgang Kreckl

Basic results in biological control of the European Cherry Fruit Fly Rhagoletis cerasi L. (Diptera: Tephritidae) with entomopathogenic nematodes
Kirsten Köppler, Arne Peters, Heidrun Vogt

Prevention of vole damage in organic pomiculture
Walther, B.; Pelz, H.-J.

A simulation program for the timing of fungicides to control Sooty Blotch in organic apple growing. First results in 2003
Marc Trapman

The effectiveness of winter treatments with copper or lime sulphur to control Sooty Blotch on apple
Marc Trapman

Examinations to date the exactly time of Infections of Sooty Blootch in 2003 in the region Bodensee
Barbara Kopp

Economics of Hot Water Dippin
Maxin P., Klopp K.

Investigations on alternative substances for control of apple scab -
results from sanitation trialsl

Pfeiffer B., Alt S., Häfner C., Hein B., Schulz C., Kollar A.

Reduction of the ascospore potential by calcium
Barbara Kopp

Inoculim related scab control in organic farming
Peter Triloff

Results from two years of sanitation measures to reduce apple scab in organic orchards
Markus Kelderer , Ewald Lardschneider, Klaus Marschall

Results in research on lime sulphur and other products to control apple scab under northern German climate conditions
Karsten Klopp, Petra Kruse, Peter Maxin, Gerd Palm

Investigations on alternative substances for control of apple scab -
Results from Conidia germinating tests and experiments with plant extracts

Pfeiffer B., Alt S., Hein B., Schulz C., Kollar, A.

Development of "Blossom-Protect" - a yeast preparation for the reduction of blossom infections by fire blight
Stefan Kunz

Fire blight in different production systems in Germany and strategies to control the disease
Wilhelm Jelkmann

Four years of experience with the control of plum rust in organic production
Andreas Häseli

Disease control in organic cherry production with new products and early plas-tic cover of the trees
Andreas Häseli und Franco Weibel

Combined production of broilers and fruits
H. Lindhard Pedersen, A. Olsen , K. Horsted, M. Korsgaard and B. Pedersen

Soil treatments and rootstocks for organic apple production
Hanne Lindhard Pedersen and Birgitte Pedersen

Testing of the apple varieties 'Topaz' and 'Rubinola' on different rootstocks
Franz Ruess

Results from a Research Project about foliar fertilizers in organic fruit-growing
Belz, J., Pfeiffer, B.

Results from thinning experiments in 2002 and 2003
Pfeiffer B., Englert, M.

Vinasse: an alternative to lime sulphur for flower thinning?
Markus Kelderer , Ewald Lardschneider, Claudio Casera

Sour cherry breeding - Resistance to leaf spot diseases, Blumeriella jaapii
Mirko Schuster

Fruit quality of Elstar en Santana in the Netherlands
Pieter Jans Jansonius

Apple and Pear Cultivars for Organic Production in a Cool Climate
Dag Røen, Gunnhild Jaastad and Stein Harald Hjeltnes

Sensory and health-related fruit quality of organic apples. A comparative field study over three years using conventional and holistic methods to assess fruit quality
Franco P. Weibel, Dieter Treutter, Ursula Graf and Andi Häseli

Consumer Reaction to the "Flavour Group Concept" to introduce Scab
Resistant Apple Varieties into the Market. "Variety-Teams" as a Further
Development of the Concept

Franco Weibel and Alfred Leder

Evaluation of grapefruit seed extract as natural fungicide to control apple scab in organic apple growing
Marc Trapman

Effects of burying and removing dead leaves from the ground on the development of scab epidemics in an apple organic orchard
C. Gomez, L. Brun, D. Chauffour, D. de Le Vallée, E. Rolland

Residues of copper and sulphur on fruits from organic orchards
Markus Kelderer , Aldo Matteazzi, Claudio Casera

Apple scab control with grapefruit seed extract: no alternative to chemical fungicides
Renate Spitaler , Klaus Marschall , Christian Zidorn, Kelderer Markus, Roland Zelger, Hermann Stuppner

Reduction of net photosynthesis after blossom: a possibility to control alternate bearing in organic orchards?
Markus Prantl , Markus Kelderer , Luca Corelli Grapadelli , Ewald Lardschneider

Susceptibility to Apple Scab, Nectria Cancer and Powdery Mildew of Different Unsprayed Apple Varieties
Birka Falk Kühn

A comparison between organic and integrated apple production: First results after 5 years of observation
Kreuzwieser Andreas , Kelderer Markus

Host age selection behaviour of Trichogramma aurosum Sugonjaev & Sorokina (Hymenoptera: Trichogrammatidae)
Samara R.Y., Monje J.C. & Zebitz C.P.W.

Investigation on the Biocontrol of Phytophthora diseases on strawberry based on antagonism
J. Anandhakumar & W. Zeller



Organizing committee

Jutta Kienzle, Foeko e.V., Weinsberg (D)
Dr. Sabine Zikeli, Universität Hohenheim (D)
Prof. Dr. Claus P.W. Zebitz, Universität Hohenheim (D)
Dr. Markus Kelderer, Research Centre Laimburg (I)
Barbara Pfeiffer, LVWO Weinsberg (D)
Dr. Franz Ruess,  LVWO Weinsberg (D)
Sascha  Buchleither, KOB Bavendorf (D)
Dr. Ulrich Mayr, KOB Bavendorf (D)
Bart Timmermans, Louis Bolk Institute (NL)
Dr. Michael Friedli, FIBL (CH)
Francois Warlop, GRAB (F)
Dr. Peter Triloff, Marktgemeinschaft Bodenseeobst (D)
Hanne Lindhard, GartneriRådgivningen (DK)
Andreas Spornberger, BOKU Wien (AT)
Dr. Eligio Malusa, RIH Skierniewice (PL)