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Summary Alternaria brassicae causes dark leaf and pod spot in Cruciferae. Epidemics of the disease were studied in the medium-term field trials of winter and spring oilseed rape ( ; WOSR, SOSR) as well as in spring turnip rape ( , STR) in 2000-2006...... Mehr Assessment of the growth inhibiting effect of some plant essential oils on different Fusarium species isolated from sorghum and maize grains Summary The antifungal activity of essential oils from clove, cedar wood, Cymbopogon species, peppermint, Eucalyptus and neem were tested for their efficacy against nine Fusarium species, namely F. verticillioides , F. proliferatum , F. oxysporum ,...... Mehr Evaluation of non-chemical seed treatment methods for control of Alternaria brassicicola on cabbage seeds Summary Due to the lack of foliar fungicide use, the organic production of Brassica seeds free of Alternaria spp. is difficult. Therefore, effective seed treatments certified for use in organic farming are needed to eradicate or at least...... Mehr Control of Phacidiopycnis washingtonensis storage rot of apples by hot-water treatments without the ethylene inhibitor 1-MCP Summary Phacidiopycnis washingtonensis , cause of rubbery rot of apples during long-term storage, was first observed in Denmark in April 2010 on fruits of the 2009 harvest. Hot-water treatments were examined as a possible way to control P....... Mehr 2011 Report on the Annual Meeting of the Study Groups ‘Host-Parasite Interactions’ and ‘Mycology’ german version...... Mehr Report on the 32nd Annual Meeting of the Working Group “Phytobacteriology ” german version...... Mehr National and International Conferences and Events german version...... Mehr National and International Conferences and Events german version...... Mehr New sources of resistance to PepMV in tomato Summary Pepino mosaic virus (PepMV) disease causes important losses in tomato ( Solanum lycopersicum ) yield around the world. In order to find new sources of resistance to this virus, a collection of accessions from different relatives of tomato...... Mehr Impact of climate change on the temporal and regional occurrence of Cercospora leaf spot in Lower Saxony Summary The effect of climate change on the temporal and regional occurrence of Cercospora leaf spot (CLS) of sugar beet in Lower Saxony is analysed using the forecasting model CERCBET1. Based on the hourly weather parameters temperature and...... Mehr The occurrence of thrips (Thysanoptera) on food legumes (Fabaceae) Summary The occurrence, quantity and population fluctuations in thrips (Thysanoptera) on various food legume crops (Leguminosae or Fabaceae) in southern Poland were investigated. Eighteen species of thrips have been described on food legume...... Mehr Protective and curative grape black rot control potential of pyraclostrobin and myclobutanil Summary Strobilurin or triazole type fungicides have proven to be very effective in strategies to control grape black rot (causal agent: Guignardia bidwellii ) due to their combined protective and curative activities. However, differences in their...... Mehr Isolation and characterisation of the entomopathogenic bacterium, Photorhabdus temperata producing a heat stable insecticidal toxin Summary Entomopathogenic nematodes symbiotically associated with Photorhabdus spp. invade the larvae of susceptible insects and Photorhabdus bacteria are released into the insect hemolymph, which produce toxins and kill the insect larvae. In this...... Mehr Stem injection of prohexadione carboxylic acid to protect blossoms of apple trees from fire blight infection ( Erwinia amylovora ) Summary Stem injection of prohexadione carboxylic acid (pca) was tested to prevent blossom infection by the fire blight pathogen Erwinia amylovora on apple trees, as an alternative to applying streptomycin (Plantomycin®). Under glasshouse...... Mehr Detection of physically interacting proteins with the CC and NB-ARC domains of a putative yellow rust resistance protein, Yr10, in wheat Summary Gene-for-gene (GFG) resistance is a potent defense mechanism in plants, that is mediated by resistance (R) proteins. In GFG resistance, pathogen effector or avirulence (Avr) proteins are recognised by R-proteins which initiate a series of...... Mehr Multiplication and movement of Xanthomonas axonopodis pv. vignicola and seed contamination in cowpea ( Vigna unguiculata ) genotypes Summary The multiplication and systemic distribution of two Xanthomonas axonopodis pv. vignicola strains from Benin differing in virulence were monitored after inoculation via leaf infiltration until 25 days post inoculation (dpi) in the...... Mehr Impact of arbuscular mycorrhiza on the St. John’s wort ( Hypericum perforatum ) wilt disease induced by Colletotrichum cf. gloeosporioides Summary The importance of herbal plants is evident in the prevalent use as flavoring ingredients in food. However, meeting the growing demand for organic grown spices and ‘medicinal plants’ of regional origin is often hampered by technical...... Mehr Influence of electrical conductivity on biological activity of Pythium ultimum and Binab T in a closed soilless system Summary The effects of electrical conductivity (EC) of the nutrient solution on the performance of the commercial biocontrol product Binab T against the root pathogen Pythium ultimum were studied in order to identify supporting factors to increase...... Mehr Synergistic damage by interactions between Ditylenchus dipsaci and Rhizoctonia solani (AG 2-2IIIB) on sugar beet Summary The aim of this study was to investigate interactions between Ditylenchus dipsaci and Rhizoctonia solani . Both pathogens are known to cause problems in the primary sugar beet production areas in Germany. Furthermore, the organisms’...... Mehr Erratum to: Variation in aggressiveness of Plasmopara halstedii (sunflower downy mildew). german version...... Mehr mehr
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Volume 118 - December 2011
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