Green manures to control soilborne diseases | Des engrais verts pour lutter contre les maladies du sol
2011
Michel, V. | Ahmed, H. | Dahal, S., Station de recherche Agroscope Changins-Waedenswil ACW, Conthey (Switzerland). Centre de Conthey
French. Brown mustard, canola and rye were used to control two soilborne diseases, Verticillium wilt (caused by Verticillium dahliae) and corky root (Pyrenochaeta lycopersici) in a series of pot trials. The average reduction of the number of V. dahliae microsclerotia by the green manures was 50 %. This reduction was strongly influenced by the green manure species, but also by the soil type. The microbial activity of the soil, enhanced by the green manures, led to a diminution of V. dahliae microsclerotia. For the control of corky root, the efficacy of a brown mustard with a high glucosinolate content was similar to steam sterilizing the soil. In contrast, rye had no effect against this disease.
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