Lutte contre la maladie du bayoud par solarisation et fumigation du sol. Une expérimentation dans les palmeraies du Maroc

Abstract

Bayoud, a vascular disease incited by Fusarium oxysporum f. sp. albedinis, is the principal threat to date palm in Morocco. The effect of soil solarization and/or fumigation using metam sodium, on survival of total fungi and Fusarium spp., was investigated in a field trial. At 40 cm depth, all treatments eliminated more than 80% of total fungi and 90% of Fusarium spp. At 40-60 cm depth, the combination of reduced doses of metam sodium with soil solarization resulted in the greatest impact on Fusarium survival. The combination of soil solarization with fumigation offers significant potential for managing the possible spread of bayoud in modern Moroccan palm orchards.