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3-Way Blend Nematodes


Parasitic nematodes are microscopic roundworms that target soil dwelling insects.

3-way blend nematodes are a blend of Heterorhabditis bacteriophora, Steinernema carpocapsae and Steinernema feltiae.

  • artichoke plume moth, fungus gnats, thrips, armyworms, banana moth, banana root borer, billbug, black cutworm, black vine weevil, borers, cat flea, chinch bug, citrus root weevil, codling moth, corn earworm, corn rootworm, dog flea, grape root borer, iris borer, large pine weevil, mole crickets, navel orangeworm, root maggots, scarab grubs, shore flies, sweet potato weevil, western flower thrips, white grubs, root weevils.

  • A complete life cycle takes 12 to 15 days at room temperature and the optimum temperature for development is between 77F and 86F. Generally soil temperature should be above 50F to maintain infectivity. The sponge you will receive contains infective juveniles that seek out are start to kill insects within 24-48 hrs.

  • Roughly 1 million nematodes per 1000 square feet of soil medium. 

    For every square foot you will need .66 gallons of water as a carrier to saturate a potting medium or soil 2” deep. Water is the carrier for nematode applications and may be applied through irrigation lines or high volume, low-pressure sprayers. Do not exceed 200 psi and remove all intake injectors and openings smaller than 0.5 mm and all filters less than 50 mesh or finer. Nematodes may be stored in the refrigerator until you are ready to apply them.

Orders for Nematodes must be received by noon on Friday for shipment the following week.  If the deadline is past, please call us and we will help you find a solution ASAP. (360) 656-6680

See order deadlines and shipping information.

Learn about release instructions for beneficial insects.