Residuos de repollo para biocontrol de Fusarium spp. en el cultivo de tomate

One of the main phytosanitary problems in the production of tomato (tomate or jitomate in spanish) (Solanum lycopersicon Mill.), where soil is used as a growing medium, is Fusarium spp., chemical control is the method frequently used for its management; with important economic and environmental impacts. The objectives of this study were: to evaluate cabbage as a rotation crop and the incorporation of residues into the soil in the incidence of permanent wilting on tomato plants and the incidence of Fusarium spp., in the soil and evaluate the suppression of Fusarium spp., by applying by-products of cabbage leaves and stems. The study was carried out in two stages: in the first the evolution of Fusarium spp., was documented in a commercial tomato cultivation, established under anti-aphid mesh conditions and cabbage as a rotation crop, during the period 2012 to 2019. In the second stage, an aqueous extract and a dehydrated powder, obtained from residual cabbage leaves and stems, were evaluated. The results show that cabbage used as a rotation crop and the incorporation into the soil of residual leaves and stems reduced the incidence of permanent wilting on tomato cultivation and effectively suppressed Fusarium spp. As well, the dehydrated powder obtained from these residues showed a similar effect on the control of Fusarium spp., to that obtained in treatments with sodium methyldithiocarbamate.