Beneficial Nematodes - Biological Pest Control

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Milky Spore Powder
4.5 out of 5 stars (17)
Multiple sizes available
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Milky Spore Powder - OMRI certified organic Japanese beetle grub control.

Lawn & Garden Dispenser Tube - Use to apply Milky Spore Powder
2 out of 5 stars (5)
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Lawn & Garden Dispenser - use to apply Milky Spore powder, Insect Dust Diatomaceous Earth, and any other garden powder or dust.

Gnatrol WDG Biological Larvicide
5 out of 5 stars (1)
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A professional and highly selective, biological larvicide that is OMRI Listed for use in greenhouses to control fungus gnat larvae.

Monterey Nematode Control
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Control of plant parasitic nematodes and fungi for home orchards, vineyards, vegetable gardens, lawns and ornamentals.

Orcon Flea Destroyer (7 million units) (FD-C7M)
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An effective and chemical free flea eliminator that can be applied on pets, animals, upholstery and on soil.

Orcon Beneficial Nematodes (7 million nematodes) (GC-R7M)
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A natural way to control and kill more than 230 underground insects including subterranean termites, white grubs and Japanese beetles.

Monterey Honey Bee Attractant
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Attracts beneficial honey bees to the garden for improved pollination.

ENTONEM - Live Nematodes (Steinernema feltiae)
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Steinernema feltiae are entomopathogenic, or insecticidal, nematodes that are effective against larvae of various immature (larvae) dipterous insects such as Sciarid flies, fungus gnats, tipulids, and mushroom flies.

Orcon Replacement Tubes For Mason Bee Nest (35 tubes) (MB-RRT35)
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Offers a clean place to attract new Mason Bees.

Koppert Swirski-Mite Plus (Amblyesius swirskii)
Multiple sizes available
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A great and natural way of eliminating thrips and whiteflies from salad and ornamental crops.

Koppert Spidex (Phytoseiulus persimilis) 4000
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Contains predatory spider mites that effectively kills unwanted spider mites on crops and leaves.

Koppert Spical Plus (Amblyseius californicus)
4 out of 5 stars (1)
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Effectively kills a variety of spider mites that can permanently damage crops and plants.

Monterey Lady Bug Attractant
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Attracts both lady bugs and lacewings that feed on aphids, whiteflies, mite an other garden pests.

Orcon Fungus Gnat Control (7 million) (FG-R7M)
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A beneficial nematode that effectively kills fungus gnat larvae that breed and live underground.

Orcon Ladybug and Lacewing (500 adult ladybugs 1000 lacewing eggs)
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A power pack that helps in eliminating aphids, leaf hoppers and other destructive soft bodied pests.

Koppert Spical (Amblyseius californicus)
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This bottle contains Neoseiulus californicus (formerly known as Amblyseius californicus). These predatory mites effectively controls two spotted spider mite, fruit spider mite, citrus red mite, begonia mite, and broad mite.

Koppert Thripex-V (Neoseiulus cucumeris) 1000 ml
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The bottle contains 50,000 predatory mites that will effectively control various thrips and spider mite species.

Koppert Thripex-Plus (Neoseiulus cucumeris) 500 pack
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The box contains 500,000 predatory mites that effectively eliminates and stops the spread of spider mites, various types of thrips and several other mites.

Orcon Predatory Mites (2000 live adults) (MI-C2000)
3 out of 5 stars (1)
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Orcon Predatory Mites (2000 live adults) are adult mites seek out and kill pest mites

Orcon Grub Control (7 million) (GC-R7M)
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A great alternative to chemicals in searching and eliminating grubs, beetle larvae and more on any lawn or garden.

Koppert Entomite M (Hypoaspis miles)
5 out of 5 stars (1)
Multiple sizes available
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This cylinder contains Stratiolaelaps scimitus (formerly known as Hypoaspis miles). These predatory mites effectively controls Sciarid flies.

Koppert Swirski-Mite LD (Amblyesius swirskii) 500 pack
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Long duration active predatory mites that can last for over 4 to 6 weeks to eliminate thrips and whiteflies on specific crops.

Orcon Mason Bee Nest
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Designed to attract beneficial bees to your garden.

Koppert S. Carpocapsae (Steinernema carpocapsae)
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Combats caterpillars and larvae of a variety of moths and beetles.


Biological pest control is becoming more important to many people as the use of some chemicals can be an issue in certain situations. One aspect of biological control often comes in the form of natural enemies. Beneficial nematodes, or parasitic and predatory nematode worms, are environmentally friendly natural parasites of insects pests but do not harm plants or other animals. They are an effective, non-chemical control method of many soil-dwelling insect pests. 

See all of our natural & organic pest products for additional options.


How Nematodes Work

Nematodes are part of the roundworm family, and are very commonly found in moist soils. You may already have this type of nematode living in your garden, but in lower levels than a nematode treatment would contain. These nematodes are called “beneficial” or entomopathogenic and are completely harmless to humans, animals, and non-target pests. They live in the soil, and have a complicated life cycle. The “dauer” third larval stage is the infective stage, and the nematodes will enter their host through any body opening they can find or even through the insects exoskeleton. The nematodes release bacteria that kill the insect in a few days. The nematodes actually eat the bacteria, and the bacteria are attacking the host; the bacteria are the primary agents responsible for killing the insect host. 

When you apply nematodes to your yard or garden, you will introduce a very high number of these nematodes to the system. Eventually, if the treatment works successfully, all or almost all of the target insects will die, eliminating the hosts for the nematodes and the high populations of nematodes will also be diminished.

Nematode Pest Control

Beneficial nematodes are used for many soil dwelling pests, including white grubs (from Japanese beetle, oriental beetle, chafer beetle, and June beetle larvae), cutworms, sod webworms, pillbugs, many borers, and some caterpillars. Doing research on the pest you want to get rid of will help you to determine if you can use nematodes in your pest control regimen. 

How to Use Beneficial Nematodes

Since nematodes are living organisms, transporting and storing them can be difficult and delicate. There are several things you need to know when using this type of pest control. As with any do-it-yourself pest control project, always read the label for instructions, warnings, and safety precautions.

  • You can buy beneficial nematodes from garden centers and online distributors. They have a very short shelf lives.
  • Use nematodes very soon after you get them. They need to be kept cool and in a dark place, like a refrigerator, to keep them dormant. 
  • Often, nematodes will come in a foam block or clay pellets. Dissolve in barely warm water (right above room temperature). These animals can be spread in a watering can or with a sprayer with a large enough nozzle. 
  • Heat and sun (UV light) causes these creatures to quickly deteriorate and die. Don’t apply nematodes during times of direct sun.
  • Soil temperature should not be too cool; for the type of nematode we sell (S. Feltiae) 58 degrees to 68 degrees will create a good soil environment.
  • Soil needs to be moist. Water before and after application, and for several days afterwards to ensure the environment is right for the nematodes to do their work. 
  • Clean up debris before applying; excess weeds, rocks, and leaves can make it difficult for nematodes to get to the soil.
  • You will probably not physically see insects dying, but do not think your control measure isn’t working. If the damage from the pest insects continues to get worse over a week or two, you might have to reapply nematodes.
  • Nematodes are sometimes advertised to work for fleas. The type of nematode you purchase will determine the flea control you will experience. The type S. carpocapsae has been studied and found to be effective against fleas.


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We sell professional do it yourself pest control (diy), exterminator and
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