IDENTIFICATION OF PATHOGENIC MICROORGANISMS IN CULTURE (Stevia rebaudiana Bertoni)

Abstract

In commercial fields of Stevia rebaudiana located in the Populated Center Las Palmas and Esperanza decided the incident and severity of occasional diseases for pathogenic microorganisms. The research was developed in phases of recognition of the symptomatology, identification of causal agents and determination of pathogenic tests. It was found 8 fungi, as causal agents of the fadings, root necrosis,  foliate spots and necrótics. 8 fungi, Fusarium sp., Rhizoctonia sp., Sclerotinia sclerotiorum, Sclerotium rolfsii. Which cause in the stems and roots, Septoria sp., Cercospora sp., Alternaria sp., Oidium. In La Esperanza has been found more infected plants by a major diversity of microorganisms. The microorganisms did not show preferences between leaves and stems and root. For both zones the microorganisms with major presence were. Fusarium, Septoria and Sclerotinia sclerotiorum, Sclerotium rolfsii.