REGALIA 2018-10-01T10:15:59-07:00

Activate natural disease defenses and increase crop performance

Regalia® biofungicide stimulates the plant’s innate ability to fight diseases and delivers better yield and improved harvest quality. It offers preventative activity and early control of yield-robbing diseases that result in increased marketable yield and top profit on every acre. Regalia is recommended for use in specialty crops, and Regalia Rx is for broad-acre row crops such as cereal grains, cotton, forage, peanuts, sorghum and sugar beets.

Regalia’s unique mode of action of Induced Systemic Resistance (ISR) brings a sustainable option to help simplify and extend your IPM program. It can be used as a stand-alone product, in rotation with or in combination with other fungicides to strengthen IPM programs and to help manage resistance in organic & conventional crops, and turf and ornamentals. Regalia also improves the crop’s tolerance to stress by enhancing overall plant health.

What Regalia Can Do for Your Crops

Benefits of Regalia

Boost yield and quality

Boost yield and quality

Inhibits fungal and bacterial disease for protection against foliar and soil-borne pathogens
Activates induced systemic resistance (ISR) so plants produce specialized proteins and other compounds
Increases plant stress tolerance and optimizes yield
Improves plant health and key functions, such as root mass, structural integrity and photosynthesis

Manage resistance

Manage resistance

New and simple IPM option with low risk of resistance; sustainably manages diseases
Simple, safe and effective product to use as an alternative in rotation with other fungicides; FRAC code group P5

Harvest flexibility

Harvest flexibility

Can be used right before harvest without concern for residues
O-day pre-harvest interval (PHI)
Harvest is ready to market
Maximum residue limit (MRL) exempt



Helps simplify your labor scheduling and avoids costly downtime
4-hour re-entry interval (REI) and minimal personal protective equipment (PPE) requirements

Approved for Organics

Approved for Organic Use

Flexible to use in conventional and organic cropping systems
OMRI and NOP listed | View the OMRI Products List of approved surfactants

Regalia In Action

Regalia to control powdery mildew and boost plant health

Regalia – a key part of our IPM program

Regalia’s flexibility is a benefit for conventional production

How Regalia works to fight off disease and optimize plant health

Regalia RX for peak performance in broad-acre crops


For Specialty Crops



For Specialty Crops
Active ingredient: Reynoutria sachalinensis
Distribution: Marrone Bio Innovations

For Row Crops



For Row Crops
Active ingredient: Reynoutria sachalinensis
Distribution: Marrone Bio

Product Literature

Regalia Rx

Disease Control

  • Alternaria fruit rot
  • Anthracnose
  • Black spot
  • Botrytis
  • Crown rot
  • Powdery mildew
  • Pythium
  • Phytophthora
  • Rhizoctonia
  • Verticillium wilt

Approved Crops

  • Strawberries
  • Blueberries
  • Cranberries
  • Fruiting vegetables
  • Cucurbits
  • Leafy greens
  • Onions
  • Potatoes
  • Stone fruit
  • Pome fruit
  • And many more

Application Specifications

  • Aerial
  • Foliar
  • Soil

Premier Features of Regalia

  • Novel mode of action
  • 4-hour REI, 0-day PHI
  • Sustainable crop protection
  • NOP compliant, OMRI approved
  • Minimal PPE required
  • MRL exempt

Art of Use

The following best use practices should be kept in mind to effectively use Regalia:

  • Generally apply 2 quarts of Regalia per acre in rotation with other fungicides
  • Or apply Regalia at 1 quart per acre in a tank mix with another labeled fungicide
  • Do not exceed a Regalia spray concentration of 1% v/v
  • Begin applying Regalia prior to visible disease symptoms or when disease is first noted
  • Repeat applications at 7-10 day intervals with shorter intervals under higher pressure situations