Wally’s Terracin Soil Biocide 250ml
Restore healthier soil and support stronger plant growth with Wally’s Terracin Soil Biocide. This advanced microbial formula helps suppress harmful fungal pathogens while encouraging beneficial soil activity. Ideal for vegetables, roses and ornamental gardens, Terracin works quickly to improve soil balance and create healthier growing conditions for plants.
Key Benefits
- Helps suppress harmful fungal pathogens in soil
- Encourages beneficial microbial activity
- Supports stronger root development and healthier plants
- Suitable for vegetables, roses and ornamental gardens
- Easy liquid concentrate for spraying or drenching
- Works alongside Mycorrcin for improved soil recovery
- Helps improve long-term soil health naturally
- Economical concentrated formula
Improve Soil Health Naturally
Wally’s Terracin Soil Biocide is designed to help rebalance unhealthy soils by suppressing fungal pathogens and encouraging beneficial microbial activity.
Healthy soil biology plays a major role in plant health, root development and nutrient uptake. Terracin helps create stronger growing conditions by supporting the beneficial microbes that naturally compete against harmful organisms.
Advanced Microbial Formula
Terracin combines:
- Bacillus amyloliquefaciens BS-1b beneficial microbes
- Fermentation compounds from Enterococcus faecium
- Natural enzymes and antimicrobial compounds
Together, these ingredients help weaken and suppress fungal pathogens while supporting the growth of beneficial soil organisms.
Ideal for Vegetables, Roses and Ornamentals
Terracin is suitable for a wide range of home garden applications including:
- Vegetable gardens
- Roses
- Ornamentals
- Fruit trees
- General garden beds
Even healthy-looking gardens may benefit from improved microbial balance and stronger soil activity.
Why This Product Is Different
Many soil treatments focus only on killing pathogens.
Terracin takes a broader soil-health approach by:
- Suppressing harmful fungi
- Supporting beneficial microbes
- Encouraging healthier soil biology
- Helping improve long-term growing conditions
Following up with Mycorrcin after treatment helps restore and strengthen beneficial microbial populations even further.
What to Expect
With proper use, gardeners may notice:
- Improved plant vigour
- Healthier root systems
- Better overall plant growth
- Reduced stress in problem areas
- Improved soil activity over time
Results will vary depending on soil condition, plant type and environmental factors.
How It Works
Terracin works through a combination of beneficial microbes, enzymes and fermentation compounds.
The Bacillus amyloliquefaciens microbes help suppress fungal pathogens by producing antimicrobial substances. Additional enzymes and compounds help weaken pathogen cell walls while supporting beneficial soil biology.
As beneficial microbial populations increase, they naturally compete against harmful pathogens for space and nutrients.
For best long-term results, follow with a Mycorrcin drench approximately three weeks later.
Recommended Usage / Coverage
Spray Application
- Mix 20ml into 1 litre of non-chlorinated water
- Spray over 10 square metres
Soil Drench Application
- Mix 2ml into 1 litre of non-chlorinated water
- Apply over 1 square metre of soil
Follow-Up
- Drench treated area with Mycorrcin after 3 weeks
Avoid chlorinated water where possible, as chlorine may reduce microbial effectiveness.
Where to Use
Suitable for:
- Vegetable gardens
- Roses
- Ornamentals
- Garden beds
- Root zones
- Problem soil areas
Ideal for gardens experiencing fungal-related soil issues or poor soil biology.
Guarantee / Warranty Section
Wally’s gardening products are developed for New Zealand growing conditions using carefully selected ingredients and proven gardening principles.
As soil conditions and environmental factors vary, results may differ between gardens and applications.
Wally’s Terracin Soil Biocide is an excellent tool for gardeners wanting healthier soil, stronger plants and improved microbial balance. Easy to apply and highly effective when paired with Mycorrcin, it helps create healthier growing conditions naturally for long-term garden performance.





Easy to mix and apply, and I noticed stronger, healthier plants within weeks. Works great when followed up with Mycorrcin—definitely recommend for anyone dealing with soil issues or fungal problems