ISHS Acta Horticulturae 704: X International Workshop on Fireblight
BIOCONTROL OF ERWINIA AMYLOVORA USING A COMMERCIAL YEAST STRAIN MIXTURE |
| Authors: | B. Duffy, J. Vogelsanger, B. Schoch, E. Holliger |
| Keywords: | antibiosis, apple, Aureobasidium pullulans, fire blight, host genotype, Metschnikowia pulcherrima, Malus x domestica, nectar |
| Abstract:
The SME Bio-Protect GmbH is developing biocontrol products for fire blight. One recent formulation BPMC 2023 consists of 3 yeast strains. We found that application of the formulation at the recommended 1.3% concentration applied 24-48 h prior to pathogen arrival at the stigma resulted in significant growth reductions of 3 log cfu. Yeast efficacy was influenced by apple cultivar with the best performance on ‘Florina’ and ‘Maigold’ and least on ‘Iduna’ and ‘Pink Lady’, but when tested on 7 cultivars significant protection was provided on all. Yeast strains Metschnikowia pulcherrima MSK1 and Aureobasidium pullulans CF10 and CF40 exhibited antibiosis that was dependent on media composition; MSK1 displayed greater antibiosis across more media than the other strains. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
