NEMAforce SF F250

NEMAforce™ SF – (50/250 million)

Price range: $49.95 through $117.95 — or subscribe to save 5%

Buy 5 or more 50mill packs for $36.10 each!
Buy 5 or more 250mill packs for $84.60 each!
(discount applied in cart)

Order by Thursday at 11AM PST to receive the following week.

SKU: F50/F250 Categories: ,

Product Description

Steinernema feltiae Nematodes with NEMAforce™ SF
Natural Pest Control That Works

What Are Steinernema feltiae Nematodes?

Looking for an effective, sustainable solution to manage soft-bodied pests? NEMAforce™ SF offers robust, eco-friendly control of fungus gnats, western flower thrips, and other common greenhouse pests. These microscopic organisms provide consistent biological pest management for growers of vegetables, ornamentals, hemp, mushrooms, and other crops.

Target Pests

NEMAforce SF targets soil-dwelling stages of pests such as:

  • Fungus gnat larvae
  • Shore fly larvae
  • Mushroom fly larvae
  • Thrips (adults, larvae, and pupae)

Why Use This Biocontrol?

These nematodes exhibit a shallow soil-dwelling habit (0–3″) and an intermediate foraging strategy that combines ambush and cruising. Because of this, they’re particularly effective against active pests near the soil surface. Furthermore, they tolerate cooler temperatures better than other nematode species, working best between 50–78°F.

Additionally, these nematodes carry a symbiotic insect-killing bacterium, Xenorhabdus spp. Once they enter a pest’s body, the bacteria quickly kill the host. As a result, the nematodes can reproduce and continue hunting for more pests.

How to Apply NEMAforce SF with Steinernema feltiae nematodes

You can apply using standard sprayers or irrigation systems. First, remove fine filters, and keep the solution mixed during use. Always apply to pre-moistened soil, allowing the nematodes to move 1–2 inches below the surface. For foliage use, spray on overcast days, mist plants after, and maintain high humidity.

Where to Use

  • Greenhouses
  • Indoor grow operations
  • Outdoor fields
  • Home gardens

Suitable for These Crops

  • Vegetables
  • Cannabis
  • Ornamentals
  • Mushrooms
  • Soft fruits
  • Nursery trees

Proper NEMAforce SF with Steinernema feltiae nematodes Storage and Disposal

Store at 41°F (5°C). Never freeze. Always check the expiration date and follow local guidelines when disposing of unused product or packaging.

Learn more about Soil Pests: Grubs, Gnats

In conclusion, NEMAforce SF offers a safe, effective, and natural way to eliminate pests. With Steinernema feltiae nematodes at its core, it’s a smart choice for anyone committed to sustainable gardening or commercial crop production.

If you want to make sure you are selecting the correct beneficial nematode for your garden problem. Learn more with our Soil Pests Control with Beneficial Nematodes article that includes our pest selection chart.

Release Rates for NEMAforce™ SF (Steinernema feltiae)

TargetIntervalRateVolume
Soil or growing media 2-3 weeks50 mil./1100 ft2 (100 m2)30-50 gal./1000 ft2 (115-190 L/100 m2)
Soil or growing media 2-3 weeks250 mil./5500 ft2 (500 m2)30-50 gal./1000 ft2 (115-190 L/100 m2)
Soil or growing media4-6 weeks50 mil./550 ft2 (50 m2)30-50 gal./1000 ft2 (115-190 L/100 m2)
Soil or growing media4-6 weeks250 mil./2750 ft2 (250 m2)30-50 gal./1000 ft2 (115-190 L/100 m2)
FoliageOnce or twice weekly, light infestation50 mil./4400 ft2 (400 m2)2.5 gal./1000 ft2 (10 L/100 m2)
FoliageOnce or twice weekly, light infestation250 mil./22000 ft2 (2040 m2)2.5 gal./1000 ft2 (10 L/100 m2)
FoliageOnce or twice weekly, heavy infestation50 mil./2200 ft2 (200 m2)2.5 gal./1000 ft2 (10 L/100 m2)
FoliageOnce or twice weekly, heavy infestation250 mil./11000 ft2 (1020 m2)2.5 gal./1000 ft2 (10 L/100 m2)

Adjust application volume as needed. NEMAforceTM SF should be applied in a sufficient water volume to thoroughly soak the soil or growing media, but not beyond the point where water overflows or leaches from the pot. For foliar applications, apply in a sufficient application volume to assure uniform foliar coverage, but do not apply to run-off.

Application rate and interval selected should be based on grower preference, management program, and crop growth characteristics. Regardless of program selected, applications of NEMAforce SF should begin early in the growth cycle for best results.

  • Applications should be made to moist soil or growing media.
  • Soil or growing media temperatures should be between 50ºF-86ºF (10ºC-30ºC).
  • If product is applied over foliage, irrigate immediately with plain water to wash nematodes into soil or growing media. Do not over irrigate to cause runoff from the tops of pots or flush nematodes through the pot.
  • In propagation areas, treat new plants as they are introduced.
  • Interiorscape plants should be treated prior to placement.

    • For foliar application:

  • Use of an approved spray adjuvant will promote improved application uniformity and allow nematodes to reach the pest more effectively.
  • Ensure that the crop remains wet for at least 2 hours following application by closing windows and ventilation.
  • Do not apply in direct sunlight. Use blackout curtains during and for at least 2 hours after application. If using artificial lighting, switch off during and for at least 2 hours after application.

    • Release instructions for the Release And Use Of NEMAforceTM SF (Steinernema feltiae)

    General Description:

    NEMAforceTM SF is a naturally occurring insect parasitic nematode (Steinernema feltiae) that seeks out the larval stages of fungus gnats (Bradysia spp.), the adult and pupal stages of western flower thrips (Frankliniella occidentalis), and many other essential pest species.

    Directions for Use:

    NEMAforceTM SF can be applied by using standard application equipment, including tank sprayers, backpack sprayers, and irrigation injection systems.
    *Fill spray vessel or stock tank with half of the required amount of cool, clean water.
    *Start agitation and add the required number of nematode trays.
    *Continue agitation while mixing and fill the spray tank to the required spray volume.
    *Maintain agitation during application to ensure uniform dispersion of nematodes.

    NEMAforceTM SF can be used in a rotational program with conventional chemicals to reduce pest resistance.
    Storage and Disposal:

    Storage Upon receipt of product, remove from shipping packaging and use immediately or store in a refrigerator at 41ºF (5ºC). DO NOT FREEZE. Ensure good air circulation around each tray. Do not use if past expiration date or incorrectly stored.

    Disposal:

    Product and packaging waste resulting from the use of this product, or unused, outdated product, may be disposed of on site or at any approved waste disposal facility in accordance with federal and local regulations.

    Precautions:

    This product contains living organisms that require special handling and application procedures.

    *DO NOT SUBDIVIDE. Once opened, use the entire tray immediately.
    *Use cool water for mixing and keep tank out of direct sunlight.
    *DO NOT STORE MIXED SUSPENSIONS. Use nematode suspensions immediately after they have been mixed.
    *Remove filters that are 50 mesh or finer from application equipment and nozzles.
    *Do not exceed 300 psi pump pressure.
    *Do not use in application systems where nozzle aperture is smaller than 0.5 mm.
    *Agitate nematodes constantly during application.
    *DO NOT SPOT TREAT. Treat the entire greenhouse crop at the appropriate rate.
    IMPORTANT:

    Report any and all suspected problems such as dead or less-than-healthy organisms within 24 hours after receipt of shipment. Do not, under any circumstances, release or discard suspect organisms until you have received instructions to do so.

    You may be asked to return the shipment for further analysis.

    Thank you for your order.
    Overnight shipping required.
    Order by Thursday 11AM PST to receive the following week.
    Will ship Tuesday's and Wednesday's
    This product is affected by US holidays.

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