What is Crown Gall?

Crown gall is a bacterial disease caused by Agrobacterium tumefaciens. It produces rough, woody galls on roots and stems that can disrupt vascular tissue and weaken young plants.

Crown gall is primarily a nursery issue and affects a wide range of woody plants, fruit crops, vines, and ornamentals.

The Solution: DYGALL

DYGALL is a biological inoculant containing a non-pathogenic strain of Agrobacterium radiobacter (strain K84). It is registered in Canada under the Pest Control Products Act for the control of crown gall.

DYGALL must be applied before exposure to crown gall to be effective.

Why Choose DYGALL?

• Biological: Uses a naturally occurring, non-pathogenic bacterium
• Preventative: Helps prevent establishment of crown gall when applied before infection
• Registered: Approved for commercial nursery use in Canada
• Compatible: Intended to complement good sanitation and nursery management practices

Product Information

DYGALL is supplied in 160 g packs produced under stringent quality control procedures. Each gram contains approximately 5×10⁹ viable bacteria.

Unopened packs must be stored under cool conditions and used before the expiry date shown on the package.

Application Methods

• Seeds: Immerse in DYGALL suspension before sowing
• Cuttings: Dip in prepared suspension before planting
• Bare Root Plants: Immerse root systems in suspension before transplanting
• Rooted Cuttings: Treat root systems before field placement

Refer to label for more instructions.

How DYGALL Works

DYGALL introduces Agrobacterium radiobacter strain K84 to plant roots and wounds before planting. The beneficial bacterium occupies ecological niches and competes with pathogenic Agrobacterium tumefaciens, reducing the likelihood of infection.

Important: DYGALL is a preventative, not a cure. It will not control existing crown gall infections and must be applied before exposure.