Abstract

CRUZ-TRIANA, Ariel et al. Management of phytopathogenic fungi in Phaseolus vulgaris L. with the application of Trichoderma asperellum Samuels, Lieckfeldt & Nirenberg. Rev. Protección Veg. [online]. 2018, vol.33, n.3 ISSN 2224-4697.

The objective of the work was to evaluate the response of the variety Tomeguín 93 of common bean (Phaseolus vulgaris L.) to diseases caused by Fusarium solani f. sp. phaseoli [ Burkholder] Snyder & Hansen) and Uromyces appendiculatus (Pers.) under field conditions when SevetriC, a product based on the strain Ta. 13 of Trichoderma asperellum Samuels, Lieckfeldt & Nirenberg, was used. The work was carried out at the Technological Scientific Unit "Los Palacios", Pinar del Río, Cuba, during the dry season of 2013. Three replications of 30 m2 plots were planted with the following variants: control without application of chemicals fungicides, control with chemical application, application of SevetriC to the soil, to the soil and stem, and to the soil and stem prior to flowering. The presence of disease symptoms was evaluated, and the incidence and severity on the plants was determined. The number of legumes, number of grains per legume and the mass of 100 grains were also determined. In general, the applications of SevetriC significantly decreased the incidence and severity of the evaluated diseases and showed a high potential for their control. The plants treated with the biological product yielded a number of legumes higher than those plants without application, and there were negative correlations between the attack index of U. appendiculatus with respect to the mass of 100 grains.

Keywords : biological control; black root; common bean; rust.

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