“…Since its discovery in 2008 in California (Calvi, 2011), Grapevine Red Blotch Disease (GRBD)-and its recently confirmed causal agent Grapevine Red Blotch Virus (GRBV) (Yepes et al, 2018)has significantly impacted several major grape-growing areas in the United States (Sudarshana and Zalom, 2017). To date, many research groups have been actively investigating various aspects of GRBD, but most have been focused either on identification and detection (Krenz et al, 2012;Al Rwahnih et al, 2013;Buchs et al, 2018;Romero et al, 2019), genetics and virology (Al Rwahnih et al, 2015;Sudarshana et al, 2015), vector biology and transmission (Bahder et al, 2016;Preto et al, 2018a;Preto et al, 2018b), or disease epidemiology and spread (Cieniewicz et al, 2017;Cieniewicz et al, 2018;Dalton et al, 2019). However, no agronomic studies have been conducted testing interactions between cultural practices and their effects on physiology of GRBV-infected grapevines.…”