NemAttack + NemaSeek Combo Pack Sc/Hb Steinernema carpocapsae + Heterorhabditis bacteriophora

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    Contains NemAttack and NemaSeek beneficial Nematodes. These are live microscopic organisms (non-segmented round worms) that occur naturally in soil throughout the world. They are parasitic to insect pests that typically have a developing (larval or pupal) stage of life in the soil. They have been known to parasitize above ground stages of adults, nymphs and larvae. They will not harm mammals, aquatic life, birds, reptiles, or amphibians.

    NemAttack & NemaSeek Combo Pack Sc/Hb Steinernema carpocapsae & Heterorhabditis bacteriophora

    NemaSeek Hb (Heterorhabditis bacteriophora) Beneficial Nematodes seek out stationary pests including: Japanese beetles, grubs, root weevils, queen ants and more. NemAttack Sc (Steinernema carpocapsae) Beneficial Nematodes attack mobile pests including: flea larvae/pupae, cutworm, sod webworm, and more.

    Beneficial Nematodes are live microscopic organisms (non-segmented round worms) that occur naturally in soil throughout the world. The beneficial nematodes Arbico sell are parasitic to insect pests that typically have a developing (larval or pupal) stage of life in the soil. They have been known to parasitize above ground stages of adults, nymphs and larvae. They will not harm mammals, aquatic life, birds, reptiles or amphibians. After being applied to the soil, the nematodes locate pests and enter through various body openings or directly through the body wall. Once inside, the nematodes produce bacteria that is injected into the pest's blood.

    Beneficial Nematodes release the bacteria in order to create food and a hospitable environment for their own reproduction. As the food resources within the dead pest become scarce, the nematodes exit and immediately begin searching for a new host. As long as there is a suitable host, they will continue to survive and parasitize.

    Shelf Life:

    Up to 2 weeks (refrigerated and unopened in original container).

    NemAttack Sc Controls These Pests and Diseases:

    Armyworm (Pseudaletia unipuncta), Artichoke Plume Moth, Beet Armyworm (Spodoptera exigua (Hubner)), Black Cutworm (Agrotis ipsilon (Hufnagel)), Black Vine Weevil (Otiorhynchus sulcatus), Bluegrass Weevil, Caterpillars, Cockroaches (American, Asian, German), Codling Moth (Cydia pomonella), Corn Earworm, Cotton Bollworm, Cranberry Girdler, Cucumber Beetle, Cutworm (Agrotis, Amathes, Peridroma, Prodenia spp), Fall Armyworm (Spodoptera frugiperda), Flea Larvae, Fly Larvae, Fruit Flies (Drasophylla), Greater Peach Tree Borer (Synanthedon exitiosa), Lesser Peach Tree Borer (Synanthedon pictipes), Large Pine Weevil, Leafminers, Mint Flea Beetle, Mint Root Borer, Mole Crickets, Navel Orangeworm, Strawberry Root Weevil (Otiorhynchus ovatus), Tobacco Budworm, Webworms, Wireworm, and Wood Borers

    NemAttack Hb Controls These Pests and Diseases:

    Ants (Queen), Asparagus Beetle (Crioceris asparagi; Crioceris duodecimpunctata), Bagworm, Banana Moth, Banana Weevil, Berry Root Weevil, Billbug, Black Vine Weevil, Borers (Iris, Tree, Vine), Carrot Weevil (Listronotus oregonensis), Chafers (European, Masked), Citrus Root Weevil, Colorado Potato Beetle (Leptinotarsa decemlineata), Corn Rootworm, Cranberry Root Weevil, Cucumber Beetle (Spotted) (Diabrotica undecimpunctata howardi), Flea Beetles, Fleas (Adults), Gall Midges, Grape Root Borer, Grubs, Humpbacked Flies, Japanese Beetle (Popillia japonica Newman), Leafminers, May/June Bugs (Phyllophaga sp.), Root Weevils, Scarabs, Sugarcane Stalk Borer, Sweet Potato Weevil, and Ticks

    How Much Do I Need? Order enough to treat the full infested area. Quantities and treatment areas are approximate.

    Package Size Quantity Treatment Area Shipping Method
    1/2 Garden Size 5 million 1,600 sq. ft. 2nd Day*
    Garden Size 10 million 3,200 sq. ft. 2nd Day*
    Farm Size 50 million 1 Acre 2nd Day*
    Small Ranch Size 250 million 5 Acres Next Day*
    Large Ranch Size 500 million 10 Acres Next Day*

    *Shipping Details:

    • Orders ship Monday – Wednesday and may take 2 days to process.
    • Orders placed Wednesday morning or later will ship the following Monday.
    • If you would like the nematodes to ship on a specific date, please specify in the comments box in checkout.
    • Nematodes cannot be shipped to HI, AK, PR, VI, GU, AS, PW.

    How long can nematodes be kept before use?

    Beneficial Nematodes should be used as soon as possible. Because they are living organisms it is best to store them unopened for no longer than 2 weeks in a refrigerator. DO NOT FREEZE.

    How are nematodes applied?

    Nematodes need to be mixed with water at the time of application. The solution can be applied using a watering can, hose end sprayer, backpack or pump sprayer or through irrigation or misting systems. Remove all filtration and agitate frequently as you apply. Do not store the solution as the nematodes will drown. Please see the instructions for the Chameleon Adaptable Hose End Sprayer for hose end sprayer directions.

    When should they be applied?

    Apply when soil temperatures are above 44° F. Apply early in the morning or predusk when temperatures are cooler and the sun is not so bright.

    Should the soil be moist after the nematode application?

    The soil should be moist at time of application and lightly watered immediately after application. After application, regular watering of the treated area will provide sufficient moisture. Generally speaking, water every 3-4 days if rainfall does not occur.

    What's the Application Rate?

    It is best to make at least two applications, separated by 7-10 days in order to stagger the life cycles of the nematodes and to assure complete coverage. In cases of severe infestations, applications should be made every 7-10 days or until infestation subsides.

    How long does it take to see results?

    After application, the nematodes locate pests and enter the pests through body openings or through the body wall. This may take 7-10 days. Once inside, the nematodes inject bacteria that kill the pest insect withing 48-72 hours by causing blood poisoning. Maximum control occurs over 2-4 weeks.

    How often should nematodes be applied?

    Nematodes are recommended for use whenever larvae or grubs are present. Generally, this is during the spring and fall months. Because larvae feed on plant roots, beneath the soil surface, severe damage can be done before realizing there is a problem. Look for signs of an adult insect, such as leaf-notching. If adult insects are present, their eggs will be hatching soon. Keep in mind, one application may not eradicate a population of insects that has become established over a period of years.

    Will nematodes live through the winter?

    In general, harsh winter weather in most parts of the country almost guarantees a significant decline in the population of the nematodes. In most cases, nematodes (just like insects) will become dormant during cold weather. Any survivors would be few in number to provide adequate insect control. If your insect pest returns the following year, another application may be necessary.

    When nematodes are applied to one area will they move to other areas?

    Nematodes are microscopic in size and have limited range of horizontal movement. They move vertically into the soil until they find a pest to infect. As a result, thorough coverage of the area is important for achieving control.


    ARBICO Organics guarantees live delivery of product. ARBICO Organics makes no guarantee of effectiveness due to disparities during application. Please call within 24 hours of receipt with any questions or concerns.


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    Store unopened in original container. Unopened, refrigerated original package.

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    NameNemAttack + NemaSeek Combo Pack Sc/Hb Steinernema carpocapsae + Heterorhabditis bacteriophora
    BrandArbico FREE ShippingYes