Proceedings 2014

Patronage / Organizing Commitee

Opening address
Marco Schlüter, ifoam EU group

Reviewing Process

Pome Fruit: Rootstocks, Varieties and Strategies for Breeding

Comparison of Rootstocks Geneva 16, M9 and CG11 under organic cultivation at the LVWO Weinsberg 2009-2013
B. Pfeiffer – Reviewed Paper

Challenges in breeding high quality apples with durable disease resistance
M. Kellerhals, I.O. Baumgartner, S. Schütz and A. Patocchi – Reviewed Paper

Apfel:gut – Participatory, organic fruit breeding
M. Ristel and I. Sattler – Short Contribution

Which genes of apple scab resistance keep control against pathogen V. inaequalis in future?
R. Vávra, T. Litschmann and V. Falta – Short Contribution

How to optimize fruit and berry cultivar selection for organic farmers? A comparison of European approaches
F. Warlop, B. Timmermans, G. Brouwer, H. Nybom, M. Lateur, M. Kelderer, F. Weibel, H. Lindhard Pedersen, A. Garcin, P. Haug and E. Dapena – Short Contribution

Sustainability: Enhancement of Functional Biodiversity

The impact of ground vegetation on the most important plant mites (Panonychus ulmi (Koch) and Tetranychus urticae Koch) and their natural enemies associated with apple trees in Sweida, Syria
J. Alabdulla and W. Almatni – Reviewed Paper

Establishment of permanent weed strips with autochthonous nectar plants and their effect on the occurrence of aphid predators
J. Kienzle, M. Foell, E. Karrer, A. Krismann and C.P.W. Zebitz – Reviewed Paper

Pome Fruit: Strategies for Disease Control

Effect of mechanically removing of leaf litter on apple scab (Venturia inaequalis) infestation in organic apple production
B. Benduhn, S. Buchleither and J. Zimmer – Reviewed Paper

Effects of several beetroot Vinasse products on foliage decomposition and ascospore formation of Venturia inaequalis on remaining leaf material
S. Buchleither, A. Bohr, S. Späth and U. Mayr – Reviewed Paper

Strategic irrigation can reduce apple scab (Venturia inaequalis (Cke.) Wint.)
M. Korsgaard – Reviewed Paper

Effects of a cultivar mixture on scab control in apple orchards
L. Brun, A. Lemarquand, G. Orain, C. Gros, F. Combe, F. Didelot, C-E. Parveaud, C. Gomez and L. Parisi – Reviewed Paper

Assessment of biocontrol agents for their efficacy against apple scab
Stefan Kunz and Malin Hinze – Reviewed Paper

ARMICARB® – trials against apple scab, recommendations and developments in other cultivars
H. Welte – Reviewed Paper

Black rot (Diplodia seriata) in organic apple production – infection biology and disease control strategies
L. Brockamp and R.W.S. Weber – Reviewed Paper

”Topaz-spot” in apple identified as “Elsinoe leaf and fruit spot” (Elsinoe pyri (Wor.) Jenkins)
M. Korsgaard, S. E. Glazowska, M. Schiller, P.R. Johnston and O. S. Lund – Reviewed Paper

Evaluation of the efficacy of plant protection products against Marssonina blotch
H. Gruber, C. Casera, K. Marschall and M. Kelderer – Reviewed Paper

Influence of fertilization measures and spraying strategies on the fruit setting of organic grown pear trees
B. Pfeiffer and S. Sinatsch – Reviewed Paper

Influence of infection parameters on pear scab dynamics in organic orchards in The Netherlands, 2010-2013
B.G.H. Timmermans and P.J. Jansonius – Short Contribution

Development of a quantitative PCR for improved detection of Marssonina coronaria in field samples
T. Oberhänsli, T. Vorley, L. Tamm and H.J. Schärer – Short Contribution

Testing susceptibility of apple cultivars against Marssonina coronaria
T. Vorley, T. Oberhänsli, L. Tamm and H.J. Schärer – Short Contribution

Preliminary results show rain roofs to have remarkable effect on diseases of apples
M. Bertelsen and H. Lindhard Pedersen – Short Communication
Publication of the full paper: will be communicated as soon as available

Pome Fruit: Strategies for Pest Control

New Approaches to Test the Field Efficacy of Plant Protection Products on Tortrix Moth Control in Apple Orchards
B. Pförtner, C. Scheer, M. Trautmann and C.P.W. Zebitz – Reviewed Paper

Diversity and abundance of parasitoids in organic apple orchards in Baden-Württemberg
A. Lashkari-Bod and C.P.W. Zebitz – Short Contribution

Using coconut potassium soap “Cocana” in woolly apple aphid control
V. Falta and V. Psota – Short Contribution

Experience with mating disruption against apple clearwing moth (Synanthedon myopaeformis)
V. Psota and M. Bagar – Short Contribution

Resistance to Cydia pomonella granulovirus: Novel findings on its distribution and diversity
J. A. Jehle, A. Sauer, E. Fritsch and K. Undorf-Spahn – Short Communication
Publication of the full paper: GEBHARDT, M., EBERLE, K.E., RADTKE, P., JEHLE, J. A. (2014). Baculovirus resistance in codling moth is virus-isolate dependent and the consequence of a mutation in viral gene pe38. Proceedings of the National Academy of Sciences ot the United States of America (PNAS) 111 (44), 15711-15716.

Compatibility between Forficula auricularia and entomopathogenic nematodes
J. Lordan, S. Alegre, G. Alins, M.J. Sarasúa, A. Morton and F. García del Pino – Short Communication
Publication of the full paper: J. Lordan, S. Alegre, G. Alins, M. J. Sarasúa, A. Morton and F. García del Pino (2014): Compatibility between Forficula auricularia and entomopathogenic nematodes to be used in pome fruit pest management. Journal of Applied Entomology, 138: p 635–643

Strategies for Fertilization and Improvement of the Fertility of the Soil

Comparison of different tree nutrition strategies for organic apple growing: long-term and additive effects of compost, N-fertilizer, foliar fertilizer and bio-dynamic preparations on tree growth, yield, fruit quality and soil fertility
F.P. Weibel, F. Suter, S. Buchleither and G. Bantleon – Reviewed Paper

Organic apple tree nutrition: Comparison of different organic fertilizers, application timing and rate, and soil management techniques: results of a 5 year field study
M. Kelderer, A. Topp, E. Lardschneider, A. Rainer and A. Matteazzi – Reviewed Paper

Legumes dense sowing with peas as an alternative me thod for nitrogen fertilization in organic fruit growing
S. Buchleither, U. Mayr and M. Brandt – Short Contribution

Development of a pot bioassay to screen organic mat ter or mycorrhiza input
ML. Brachet, M. Millan and A. Garcin – Short Contribution

Mycorrhizal fungi to control replant disease: exist ing diversity in apple orchards
A. Ceustermans, M. Van Geel, O. Honnay, B. Lievens, D. Bylemans and W. Van Hemelrijck – Short Contribution

SYMBIO BANK – a collection of beneficial soil micro organisms
L. Sas Paszt, B. Sumorok, A. Lisek, E. Derkowska, P. Trzcinski, A. Harbuzov, S. Gluszek and E. Malusà – Short Communication

Pome Fruit: Strategies for the Regulation Crop Setting

Crop regulation with single row netting structures and their influence on crop quality
M. Kelderer, E. Lardschneider and A. Rainer – Reviewed paper

Interaction between varieties, lime sulphur and hailnet on the thinning effect and on side effects using paraffin oils as a June drop thinner
M. Kelderer, E. Lardschneider and J. Telfser – Reviewed Paper

Crop regulation in organic grown apples – results of different trials on three different sites
S. Sinatsch, B. Pfeiffer, T. Schult, J. Zimmer and L. Brockamp – Reviewed Paper

Sustainability: Models of Sustainable Orchards

Towards new models of highly sustainable orchards: an integrative and participatory approach
S. Penvern and A. Dufils – Short Contribution

Pome Fruit: Application Technique

When Efficiency Matters… Can organic fruit production benefit from “Low Loss Crop Protection”?
P. Triloff – Short Contribution

Stone Fruit: Strategies for the Control of Pests and Diseases

Nets and covers to protect cherry trees from rain a nd insects
G. Charlot, C. Weydert, M. Millan, ML. Brachet and F. Warlop – Short Contribution

Effect of bagging on Brown rot incidence in Europea n Plum
C. Keske, D. Treutter and M. Neumüller – Short Contribution

Small Fruit: Strategies for the Control of Pests and Diseases

Phenology of the strawberry blossom weevil and damage in strawberries
A. Krauß, C. Steen and C.P.W. Zebitz – Short Contribution

Development of a Multiplex TaqMan Real-Time PCR Ass ay for Sensitive and Rapid Detection of Phytoplasmas Infecting Rubus Species
H. Linck, E. Krüger and A. Reineke – Short Contribution

Effect of active steam disinfection on soil microor ganisms and strawberry plants health and yield
B. Meszka, P. Sobiczewski, H. Bryk, A. Chalanska, Cz. Slusarski, J. Ciesielska and E. Malusà – Short Communication
Publication of the full paper: B. Meszka, E. Malusa (2014): Effects of soil disinfection on health status, growth and yield of strawberry stock plants. Crop Protection 63: p. 113-119

Evaluation of new strawberry breeding clones for organic production on a Verticillium – infested site in Eastern Austria
H. Weissinger, H. Flachowsky and A. Spornberger – Short Communication
Publication of the full paper: H.Weissinger, H. Flachowsky, A.Spornberger (2014): New strawberry genotypes tested for organic production on a Verticillium-infested site. Horticultural Sciences (Prague), Vol. 41, 2014, No. 4:p.167–174

Stone Fruit: Challenges in Production

Suitability of early ripening sweet cherry (Prunus avium L.) cultivars for organic production – results of a long term trial in Eastern Austria
A. Spornberger, S. Ostojic, J. Telfser, D. Buvac and H. Keppel – Short Communication
Publication of the full paper: A. Spornberger, S. Ostojic, J. Telfser, D. Buvac & H. Keppel (2013): Suitability of Sweet Cherry Prunus avium L.) Cultivars for Organic Production – Results of a Long Term Trial in Eastern Austria. J AM POMOL SOC, 67 (4), 196-204.

Plasma as a postharvest treatment against Monilia spp. on plum
J. Wimmer, A. Schulz, C. Scheer and R.T. Voegele – Short Communication
Publication of the full paper: will be communicated as soon as available