WSU Cougar Head Logo Washington State University
Menu
';

extract of Reynoutria sachalinensis (Regalia)

REGALIA® Biofungicide applied to actively growing plants  will help protect treated portions from certain plant diseases and will improve plant health. Apply prior to disease infestation to protect the growing leaf tissue, flowers and above ground fruit and vegetables. The extract obtained from Reynoutria sachalinensis plant material contains bioactive compounds. The extract, when applied to the host plant, activates the plant’s defense system to increase phenolics and antioxidants, and strengthen cell walls. This mode of action is classified as induced systemic resistance.

Organic
Effect on Beneficials: Unknown
Material Type: Fungicide
Signal Word: Caution
Formulation: Liquid
EPA Number: 84059-3

Usage for extract of Reynoutria sachalinensis on Grapes

Budbreak to Prebloom

Target Rate of application REI PHI MOA Eff. Notes
Powdery Mildew 0.5-1.0 % v/v 4 - P05 Good Preventative treatment. Always tank mix with other fungicides if disease pressure is high. Spray in 50–100 gallons per acre.
Organic

Bloom to Pea Size Fruit

Target Rate of application REI PHI MOA Eff. Notes
Botrytis Bunch Rot 0.5-1.0 % v/v 4 - P05 Good Good coverage of clusters is essential for disease control. Key phenological stages for Botrytis management are early bloom, bunch closure, and veraison to harvest.
Organic
Powdery Mildew 0.5-1.0 % v/v 4 - P05 Good Preventative treatment. Always tank mix with other fungicides if disease pressure is high. Spray in 50–100 gallons per acre.
Organic

Pea Size Fruit to Véraison

Target Rate of application REI PHI MOA Eff. Notes
Botrytis Bunch Rot 0.5-1.0 % v/v 4 - P05 Good Good coverage of clusters is essential for disease control. Key phenological stages for Botrytis management are early bloom, bunch closure, and veraison to harvest.
Organic
Powdery Mildew 0.5-1.0 % v/v 4 - P05 Good Preventative treatment. Always tank mix with other fungicides if disease pressure is high. Spray in 50–100 gallons per acre.
Organic

Véraison to Preharvest

Target Rate of application REI PHI MOA Eff. Notes
Botrytis Bunch Rot 0.5-1.0 % v/v 4 - P05 Good Good coverage of clusters is essential for disease control. Key phenological stages for Botrytis management are early bloom, bunch closure, and veraison to harvest.
Organic