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Investigation on the Biocontrol of Phytophthora diseases on strawberry based on antagonism

By J. Anandhakumar and W. Zeller


After screening of several rhizosphere bacteria against the soilborne pathogens of\ud red core and crown rot disease of strawberry Phytophthora fragariae var. fragariae\ud and Phytophthora cactorum under in vitro conditions, three of the most active isolates\ud which produced up to 63% of reduction in mycelium growth, such as Raoultella\ud terrigena (G-584), Bacillus amyloliquefaciens (G-V1) and Pseudomonas fluorescens\ud (2R1-7) were selected for further studies under in vivo conditions. In a greenhouse\ud and field experiments, mentioned above three isolates were tested against both\ud Phytophthora diseases under artificial infested soil conditions. Root dip treatment\ud with these bacterial antagonists produced a control effect on both fungal diseases\ud between 27 to 55 % and were in some cases comparable with the chemical fungicide\ud Aliette

Topics: Crop health, quality, protection, Fruit and berries
Year: 2004
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Provided by: Organic Eprints

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