Beneficial Nematodes
Beneficial nematodes are a natural, non-toxic solution for controlling soil-dwelling pests in gardens, greenhouses, lawns, turf, compost systems, and agricultural settings. These microscopic organisms actively seek out insect larvae and eliminate pests such as fungus gnats, grubs, weevils, caterpillars, and fleas within 24–48 hours. We offer four proven species—Steinernema feltiae (Sf), Heterorhabditis bacteriophora (Hb), Steinernema kraussei (Sk), and Steinernema carpocapsae (Sc)—each selected for specific pests, temperatures, and growing conditions. Safe for people, pets, plants, pollinators, and beneficial insects, nematodes are an effective biological control tool for long-term, sustainable pest management.
Steinernema feltiae targets fungus gnat, shore fly, fruit fly, western flower thrips, plant parasitic nematode, root-knot nematode, fire ant, leafcutter ant. Ideal temperatures 55°-85° F.
Release every 3-6 weeks for infestations OR every 60 days as a preventative. 1 million per 60 sq ft OR 1 billion per acre OR for pre-treating potting soil, 1-2 million per cu yd.
Ecomask® Beneficial Nematodes are a powerful biological control solution recommended for flea control and especially effective in hot, dry climates. Containing Steinernema carpocapsae, Ecomask targets flea larvae and other surface-dwelling pests and is easy to apply with watering cans, Nema-Jet, or pressure sprayers. Safe for people, pets, plants, and beneficial insects, Ecomask provides chemical-free pest control ideal for IPM programs in lawns, landscapes, and agricultural settings.
Heteromask® Beneficial Nematodes are a highly effective biological solution for controlling all types of white grubs, including Japanese beetles, European chafers, and oriental beetles. Containing Heterorhabditis bacteriophora, Heteromask targets soil-dwelling pests at the root zone and is easy to apply with watering cans, Nema-Jet, or pressure sprayers. Safe for people, pets, plants, and beneficial insects, Heteromask provides powerful, chemical-free grub control ideal for lawns, landscapes, and IPM programs.
Nemasys® L Beneficial Nematodes (Steinernema kraussei) provide targeted, chemical-free control of black vine weevil larvae, even in cool soil conditions down to 40°F. Unlike other nematode species, Nemasys L remains active when larvae are present in early spring and fall, making it ideal for protecting ornamentals, berries, and nursery crops. Easy to apply as a soil drench, it is a highly effective, IPM-friendly solution for long-term weevil management.

Scanmask® Beneficial Nematodes are our most versatile biological control, treating the widest range of pest insects and ideal for both multi-pest infestations and preventative applications. Containing Steinernema feltiae, Scanmask is easy to apply with watering cans, Nema-Jet, pressure, or injection sprayers and is compatible with most common pesticides and beneficial controls. These non-toxic, insect-parasitizing nematodes are safe for people, pets, plants, and pollinators while providing effective, chemical-free pest suppression.