Biological activity of preparation Gliocladin-SC in vitro to control soil pathogens

Abstract

Particularly dangerous pathogens of crops are fungus of the genus Sclerotinia and Fusarium. They are known as causal agents of fungal diseases that affect a wide range of cultivated plants: cereals, legumes, beans, vegetables, soy, sunflower, corn, etc. Pathogens cause various pathological phenomena - rot diseases of the roots, stems, seeds, fruits, and general depression and premature aging. Biological control methods that reduce the population of pathogen in the soil appear to be the most practical method. Fungus Trichoderma virens  Miller, Giddens and Foster is a haploid, filamentous hyphomycete (a subclass of fungi). This fungus is present in most soils throughout the world. The antagonistic activity of T.virensshowed that it is parasitic on many soil-borne and foliage pathogens. Recent discoveries show that the fungi not only act as biocontrol agents, but also stimulate plant resistance, and plant growth and development resulting in an increase in crop production.  The biocontrol activity involving mycoparasitism, antibiotics and competition for nutrients, also induces defense responses or systemic resistance responses in plants. This paper reviews confirmed the antagonistic potential and antifungal ability of biopesticide Gliocladin-SC (active microorganism Trichoderma virens strain 3X) against pathogens - agents of white rot and root rot Fusarium complex of crops. Gliocladin-SC is recommended as biological product on soy for control the basal and root rot by preplans seed-treatment.