ISHS Acta Horticulturae 424: II International Rose Symposium
SELECTION OF MICRORGANISMS ACTIVE AGAINST BOTRYTIS CINEREA ON CUT ROSES |
| Authors: | C. Pasini, T. Berio, M.L. Gullino |
| Abstract:
The screening of 820 microrganisms, isolated from untreated rose buds, led to the selection of 3 bacteria (B106, B550 and B576) showing an interesting capability to reduce Botrytis blight on cut flowers. The bacteria were applied by dipping flowers in a 109 CFU/ml cell suspension; flowers were artificially inoculated 24 hrs later with the pathogen (105 CFU/ml). The selected bacteria showed in a series of trials an average efficacy ranging between 35 and 52%. The efficacy of the bacteria was averagely comparable to that shown by a dicarboximide fungicide; however, in comparison with the fungicide, the biocontrol agents showed less consistency throughout the different trials. | |
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