3-5 Inch to and First Post-bloom Spray Growth Stage Product (rate/A) FRAC Code Relative cost Target Diseases (per acre/application) 3-5 inch shoot Same fungicides as one PHOM, PM (or 7-10 days after inch the last spray) 10-12 inch Same fungicides as one BR, PM, DM (or 7-10 days after inch the last spray) Immediate Same fungicides as one BR, PM, DM to early inch shoot bloom (or 7-10 days after OR USED the last spray) Revus Top 2.08 F (7 3+40 $ BR, PM, DM oz)* * Revus Top used alone provides excellent control against black rot, downy mildew and powdery mildew. Revus Top should not be applied to Concord or non-vinifera hybrids as leaf burning may occur. Consult the label for other restrictions. First post-bloom Same fungicides as BR, PM, DM spray immediate pre-bloom to (no longer than 10 early bloom days after the last spray) PLUS* 4 + M $$$$ DM Ridomil Gold MZ (2.5 lb)** 4 + M1 $$$ or Ridomil Gold Copper (2 40 $$$ lb)*** or 43 $$$ Revus (8 fl oz) or 21 $$ Presidio (3-4 fl oz) or 40 $ Ranman (2.1-2.75 fl oz) or 45 + 40 $$$ Forum (6 oz) or Zampro (11-14 fl oz) * If conditions are highly conducive for downy mildew infections during this period (temperatures above 50 F, rainy and high humidity at night) the addition of a product specific to DM should be added to the program. It is very important to remember that these materials will need to be tank mixed with other fungicides because they will not provide adequate control of powdery mildew or black rot.
3-5 Inch to and First Post-bloom Spray Growth Stage Product (rate/A) FRAC Code Relative cost (per acre/application) Target Diseases 3-5 inch shoot (or 7-10 days after the last spray) Same fungicides as one inch PHOM, PM 10-12 inch (or 7-10 days after the last spray) Same fungicides as one inch BR, PM, DM Immediate to early bloom (or 7-10 days after the last spray) Same fungicides as one inch shoot OR USED Revus Top 2.08 F (7 oz)* 3+40 $ BR, PM, DM BR, PM, DM * Revus Top used alone provides excellent control against black rot, downy mildew and powdery mildew. Revus Top should not be applied to Concord or non-vinifera hybrids as leaf burning may occur. Consult the label for other restrictions. First post-bloom spray (no longer than 10 days after the last spray) Same fungicides as immediate pre-bloom to early bloom PLUS* Ridomil Gold MZ (2.5 lb)** or Ridomil Gold Copper (2 lb)*** or Revus (8 fl oz) or Presidio (3-4 fl oz) or Ranman (2.1-2.75 fl oz) or Forum (6 oz) or Zampro (11-14 fl oz) 4 + M 4 + M1 40 43 21 40 45 + 40 $$$$ $$$ $$$ $$$ $$ $ $$$ BR, PM, DM DM * If conditions are highly conducive for downy mildew infections during this period (temperatures above 50 F, rainy and high humidity at night) the addition of a product specific to DM should be added to the program. It is very important to remember that these materials will need to be tank mixed with other fungicides because they will not provide adequate control of powdery mildew or black rot.
2017-Grape-Fungicide-Spray-Guide-FINAL-12matmm.docx