Double Nickel 55 WP – Biological Fungicide & Bactericide
Double Nickel 55 WP is a broad-spectrum biological fungicide and bactericide formulated with Bacillus amyloliquefaciens strain D747. Designed for preventive disease management, Double Nickel 55 can help control or suppress a wide range of fungal and bacterial plant diseases on labeled crops and ornamentals.
The 5 lb formulation is ideal for commercial growers, nurseries, greenhouse operations, landscapers, professional applicators and organic-production systems looking for a biological disease-management tool.
Double Nickel 55 works through multiple complementary modes of action, including antimicrobial metabolites, plant triggering, growth promotion and competitive exclusion. The beneficial bacteria colonize plant surfaces and help prevent the establishment of disease-causing fungi and bacteria.
Key Features
- 5 lb package
- Biological fungicide and bactericide
- Contains Bacillus amyloliquefaciens strain D747
- Broad-spectrum preventive disease protection
- Controls or suppresses numerous fungal and bacterial diseases
- Suitable for use in organic production
- OMRI Listed®
- Useful in Integrated Pest Management (IPM) programs
- Multiple modes of action
- Colonizes plant surfaces to help prevent pathogen establishment
- Compatible with many tank-mix partners when permitted by the label
- 4-hour restricted-entry interval
- 0-day pre-harvest interval for labeled uses
Active Ingredient
Bacillus amyloliquefaciens strain D747 – 25.0%
Other Ingredients – 75.0%
Double Nickel 55 is a biological microbial pesticide based on the naturally occurring bacterium Bacillus amyloliquefaciens strain D747.
How Double Nickel 55 Works
Double Nickel 55 uses several complementary mechanisms to protect plants from disease.
Antifungal Activity
The beneficial bacterium produces metabolites that can interfere with fungal pathogens and their ability to establish and develop.
Antibacterial Activity
Antimicrobial compounds produced by the bacterium can interfere with susceptible bacterial pathogens.
Competitive Exclusion
Bacillus amyloliquefaciens D747 rapidly colonizes treated plant surfaces, helping occupy space and resources that disease-causing organisms would otherwise use.
Plant Triggering
Double Nickel can stimulate plant defense responses, helping plants respond to disease pressure.
Growth Promotion
The biological activity of the product can contribute to improved nutrient uptake and plant growth through interactions between the beneficial microorganism and the plant.
Diseases Controlled or Suppressed
Double Nickel 55 is labeled for control or suppression of numerous fungal and bacterial plant diseases.
Examples of diseases associated with the Double Nickel program include:
- Anthracnose
- Apple scab
- Botrytis
- Gray mold
- Bacterial leaf spot
- Bacterial spot
- Bacterial speck
- Fire blight
- Early blight
- Cercospora leaf spot
- Powdery mildew
- Downy mildew
- Lettuce drop
- Other labeled fungal and bacterial diseases
The exact disease claims vary by crop and application site. Always consult the current EPA-approved label for the complete crop-by-crop disease list and application directions.
Recommended Crop & Plant Uses
Double Nickel 55 is used in disease-management programs for numerous labeled crops and ornamentals.
Applications include specified:
- Vegetables
- Leafy vegetables
- Brassicas
- Fruiting vegetables
- Cucurbits
- Strawberries
- Cane berries
- Grapes
- Citrus
- Stone fruit
- Tree nuts
- Pome fruit
- Legume vegetables
- Sugar beets
- Ornamentals
- Nursery plants
Use only on crops and at application rates specifically listed on the current product label.
Organic Production
Double Nickel 55 is an important option for growers looking for biological disease-management products compatible with organic production systems.
Certis identifies Double Nickel 55 as OMRI-certified and suitable for organic production and IPM programs.
OMRI status should always be verified against the current OMRI listing and the applicable certification requirements before making an organic-production claim for a particular crop or operation.
Preventive Disease Management
Double Nickel 55 is best positioned as a preventive biological fungicide and bactericide rather than a conventional curative fungicide.
Certis recommends beginning applications at crop emergence, transplanting or when conditions become favorable for disease development. Applications can be repeated according to the product label while disease-favorable conditions persist.
Using Double Nickel as part of an integrated disease-management program can help reduce reliance on conventional fungicides and provide a biological mode of action that fits well into resistance-management programs.
