European Journal of Plant Pathology (2009) 123, 153-158

Anne Moussart, Emmanuel Wicker, Bernard Le Delliou, Jean-Marie Abelard, Robert Esnault, Emile Lemarchand, François Rouault, Frédéric Le Guennou, Marie-Laure Pilet-Nayel, Alain Baranger, Francis Rouxel and Bernard Tivoli (2009)
Spatial distribution of Aphanomyces euteiches inoculum in a naturally infested pea field
European Journal of Plant Pathology 123 (2), 153-158
Abstract: The main objective of the study was to describe the horizontal and vertical distribution of Aphanomyces root rot in a naturally infested pea field. Measurements of inoculum potential clearly indicated a horizontal distribution of inoculum among several foci in the field, these foci differing in size and disease intensity. A highly significant relationship was observed between disease severity on plants during the cropping season and soil inoculum potential. In terms of the vertical distribution of inoculum in the soil, detection was maximal at a depth of 10 to 40 cm, but inoculum was detected down to a depth of 60 cm. Generally, inoculum potential was lowest for the layers at depths of 0 to 10 and 50 to 60 cm. Inoculum distribution and the value of the methodologies used are discussed in terms of possible use for epidemiology and disease forecasting.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Emmanuel Wicker, Bernard Tivoli

Research topic(s) for pests/diseases/weeds:
environment - cropping system/rotation
surveys/sampling/distribution

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Aphanomyces euteiches