Phakopsora euvitis isolates sensitivity to fungicides and environmental-related variables and grapevine rust progress in Niagara Rosada grapes

• Grant number: 14/21094-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: November 01, 2014
• End date: October 31, 2015
• Field of knowledge: Agronomical Sciences - Agronomy - Plant Health
• Principal Investigator: Marcel Bellato Spósito
• Grantee: Ana Carolina Vettorazzi
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated research grant: 13/24003-9 - Grape diseases: epidemiology, damage assessment and control, AP.TEM

Abstract

Isolates of Phakopsora euvitis, causal agent of grapevine rust, will be collected in three regions of São Paulo State for determining in vitro its sensitivity to strobilurin fungicide. Relationships between environmental variables (temperature, leaf wetness duration, relative humidity, rainfall volume, rainfall intensity) and the progress of grapevine rust (evaluations of disease incidence and severity) will be examined in areas where the damage caused by the disease will be evaluated. (AU)