Steinernema feltiae - Biological Control for Fungus Gnats and Soil Pests - 1 Sachet (2.5 Million Nematodes)
Important: Beneficial insects are only shipped to Germany, France, Austria, Denmark, the Netherlands, Belgium, and Luxembourg due to their short shelf life and the need for fast delivery. Orders ship once a week (Wednesdays) — please read the shipping disclaimer carefully to avoid delays!
What’s Included
✔ 1 sachet containing 2.5 million Steinernema feltiae nematodes for long-term pest control.✔ Treats up to 12 plants, depending on pot size and infestation level.✔ Easy-to-apply - Simply mix with water and drench the soil.
How Steinernema feltiae Works
✔ Fungus Gnat Control - Targets larvae in the soil, stopping the life cycle before adults emerge.✔ Root Pest Control - Attacks larvae of soil-dwelling insects like shore flies and certain thrips species.✔ Prevents Recurring Infestations - Continues working in the soil, providing long-term protection.✔ Safe for Plants and Pets - Does not harm beneficial insects, houseplants, or humans.
Highly effective: Best results occur in moist soil conditions at 15-25°C.
Best Conditions for Use Indoors
✔ Temperature: 10-28°C (optimal 15-25°C)✔ Soil Moisture: Keep soil damp for at least 2 weeks after application.✔ Apply in the evening or during low-light hours to protect nematodes from UV exposure.
🌱 Tip: Water plants before application to ensure nematodes can move freely through the soil.
How to Apply Steinernema feltiae on Houseplants
✔ Mix the sachet contents with lukewarm, chlorine-free water.✔ Stir gently and let the mixture settle for a few minutes.✔ Drench the soil of each plant using a watering can or sprayer.✔ For small pots - Use approx. 100 ml per plant.✔ For large plants - Apply up to 250 ml per pot.✔ Reapply every 4 weeks if pest pressure remains high.
What Pests Do Steinernema feltiae Control?
✔ Fungus gnats (larvae) - Stops infestations at the source.✔ Thrips (soil-dwelling larvae) - Reduces populations before emergence.✔ Shore flies and other soil pests - Targets larvae in damp conditions.
❌ Not effective against adult insects or pests that don’t inhabit soil.
🔹 For adult fungus gnat control, use sticky traps in combination with nematodes.
Storage and Handling for Indoor Use
✔ Use immediately upon arrival for best results.✔ Store in the refrigerator (4-8°C) for up to 2 weeks if necessary.✔ Do not freeze - extreme cold kills nematodes.
Pesticide Compatibility for Houseplants
Steinernema feltiae is sensitive to certain chemical treatments.
🚫 Avoid using:
 
Soil drenches with chemical pesticides - May kill nematodes.
High concentrations of hydrogen peroxide - Can harm beneficial organisms.
✔ Best Practice: If chemical treatments were recently applied, wait 5-7 days before introducing nematodes.
Common Issues and Troubleshooting
❌ Nematodes don’t seem to work?
 
Check soil moisture - Dry soil reduces effectiveness.
Monitor temperatures - Below 10°C or above 28°C may reduce nematode activity.
Was the application fresh? - Expired or improperly stored nematodes may not be viable.
❌ Still seeing fungus gnats?
 
Nematodes target larvae, not adults - Use sticky traps to catch flying gnats.
Repeat application every 4 weeks - Ensures coverage of new larvae hatching in soil.
Eliminate excess moisture - Overwatering encourages fungus gnat breeding.
Why Choose Steinernema feltiae for Houseplants?
✔ Attacks pests at the source - Targets soil-dwelling larvae before they mature.✔ 100% natural and safe - No chemicals, safe for pets and beneficial insects.✔ Long-lasting protection - Works in the soil for weeks after application.✔ Easy to apply - Mix, pour, and let nature do the work!
Order Steinernema feltiae Today!
Protect your houseplants naturally and effectively. Order Steinernema feltiae nematodes now for a reliable, chemical-free solution against fungus gnats, thrips larvae, and other soil pests.