Krishikranti Bacillus Subtilis Bio Fungicide

What Krishikranti Bacillus Subtilis Controls

Bacillus subtilis is unique among bio fungicides  it works on both fungal and bacterial diseases, and it can be sprayed directly on leaves, fruits, and flowers (unlike soil-only biologicals). It produces natural antibiotics (lipopeptides) that disrupt pathogen cell walls and forms a protective biofilm on plant surfaces.

Foliar Diseases Controlled

• Powdery mildew in grapes, cucurbits, mango, peas
• Downy mildew in grapes, cucumber, onion
• Early blight and late blight in tomato, potato
• Anthracnose in chilli, mango, banana
• Botrytis (gray mold) in grapes, strawberry
• Sheath blight and blast in paddy
• Scab in apple
• Sigatoka leaf spot in banana

Soil-Borne & Bacterial Diseases Controlled

• Bacterial wilt in tomato, brinjal, potato, ginger
• Bacterial leaf blight in paddy
• Fusarium wilt in cotton, banana, gram
• Damping off in vegetable nurseries
• Root rot, collar rot, stem rot
• Rhizome rot in ginger, turmeric

Browse the full Bio Fungicides Collection, Wilt Control Solutions, or Organic Fungicide Range.

Crop-Wise Dose & Application Chart

How to Apply Bacillus Subtilis

1. Foliar Spray

Use 2.5–5 g per litre of water. Spray during cool hours  early morning or late evening. Cover both upper and lower leaf surfaces. Repeat at 7–10 day intervals during disease-favorable weather. Avoid spraying in direct sunlight.

2. Seed Treatment

Use 5–10 g per kg of seed. Make a slurry with water, coat seeds evenly, dry in shade, and sow within 24 hours.

3. Soil Application

Mix 2.5 kg per acre with 50–100 kg of well-decomposed FYM or vermicompost. Keep moist for 5–7 days, then broadcast at sowing or transplanting. Best for fields with bacterial wilt or fusarium wilt history.

4. Drenching (For Bacterial Wilt & Soil Diseases)

Dissolve 5 g per litre of water. Drench the root zone of affected and surrounding plants. Repeat after 10–15 days if disease pressure persists.

5. Seedling Root Dip

Dissolve 10 g per litre of water. Dip seedling roots for 20–30 minutes before transplanting.

When to Use

• Preventive: Start sprays 7–10 days before disease onset (based on weather forecast and crop history)
• At early symptoms: First spotting of mildew, leaf spot, or wilting
• During humid/cloudy weather: When fungal and bacterial diseases spread fastest
• Before flowering and fruit setting: Critical for grapes, tomato, chilli, mango
• Throughout the crop cycle: As part of IPM and organic spray programs

How It Works

Bacillus subtilis works through four mechanisms:

• Antibiotic production: Releases iturin, surfactin, and fengycin  natural lipopeptides that rupture pathogen cell membranes
• Biofilm formation: Coats leaf and root surfaces, physically blocking pathogen entry
• Induced systemic resistance (ISR): Triggers the plant's own immune response
• Competition: Outcompetes pathogens for nutrients and space

Unlike Trichoderma (which is a fungus and works mostly in soil), Bacillus subtilis is a bacterium that survives well on leaf surfaces  making it the go-to biological for spray-based disease management.

Why Farmers Choose Krishikranti Bacillus Subtilis

• Dual action: One product controls both fungal and bacterial diseases  rare in biologicals
• Sprayable biological: Works on leaves, fruits, and flowers  not just soil
• Residue-free: Zero pre-harvest interval; safe for grapes, mango, and other export crops
• Resistance management: Excellent rotation partner for chemical fungicides  slows pathogen resistance
• Heat-stable formulation: Spore-based  survives field conditions better than liquid biologicals
• Powdery mildew specialist: One of the most effective biological options for grape and cucurbit growers
• Organic certified: Approved for organic and natural farming systems

Frequently Asked Questions