Best Choice for Foliar and Greenhouse Applications.
Our Beneficial Nematodes arrive ready-to-use. Just add to water and apply to the soil or growing media with virtually any watering device!
NemAttack Sf (Steinernema feltiae) Beneficial Nematodes are recommended to control and prevent the following insects:
Attacks Mobile Pests such as: Fungus gnats, ticks, thrips, leafminers, caterpillars, cutworms, sod webworms, onion maggots, subterranean termites. American cockroach, armyworm, artichoke plume moth, Asian cockroach, beet armyworm, cabbage maggots, black cutworm, bluegrass weevil, codling moth, corn earworm, cotton bollworm, cucumber beetle, fall armyworm, fly larvae, fruit fly, German cockroach, mole crickets, tobacco budworm, wireworm and more.
— REFRIGERATE UPON ARRIVAL —
Remove nematode package from insulated shipping container or packaging and place in refrigerator until ready to use.
Beneficial Nematodes 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; however, they have been known to also parasitize above ground stages of adults, nymphs and larvae. They are completely safe to use and will not affect mammals, aquatic life, birds, reptiles or amphibians.After application, the nematodes immediately get to work. Upon finding a pest, they enter it through various body openings or directly through the body wall. Once inside, it is not the nematode that actually kills the pest, but the toxic bacteria inside the nematode's gut that is the real weapon – symbiotic bacteria, that when released inside and insect, kill it within 24 - 48 hours by causing blood poisoning.
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.
How Much Do I Need? Order enough to treat your infested area at least two times. Quantities and treatment areas are approximate.
||1,600 sq. ft.
||3,200 sq. ft.
|Small Ranch Size
|Large Ranch Size
|Important Shipping Note:|
|2nd Day Shipping Required for Backyard, Garden, Farm and Small Ranch Sizes. |
Note: Large Ranch Size Requires Next Day Shipping.
When will my order ship?
• Orders ship Monday – Wednesday and may take 2 days to process.
• Orders placed Tuesday night or later will ship the following Monday.
• Nematodes cannot be shipped to Hawaii.
Warning: Do not freeze.
Pests and IPM:
This product works as a beneficial insect for control of the following: Fleas, Flies (mult), Fruit Flys (Drasophylla), Fungus Gnats (Bradysia impatiens), Gnats, Thrips (Franklinothrips sp)
Conditions: Remove from shipping bag or box and store the container of nematodes, unopened in a refrigerator. Use as soon as possible.
Environment: Outdoors, Crops, Orchards & Vineyards, Nursery, Greenhouse, Grow Room, Hydroponics, Aquaponics, Pond & Environment, Household Use, Interiorscapes, Container Plants, Houseplants
How long can nematodes be kept before use?
Beneficial Nematodes should be used as soon as possible. Because they are live organisms, it is best to store them for no longer than 2 weeks in a refrigerator that is between 37° and 42° F.
How are nematodes applied?
The solution can be applied using a watering can, hose end sprayer, backpack or pump sprayer or through irrigation or misting systems. Please see the instructions for the Chameleon Adaptable Hose End Sprayer for hose end sprayer directions.
When should they be released?
Release 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.
|Package Size||Quantity ||Treatment Area |
|1/2 Garden Backyard Size ||5 million ||1,600 sq. ft. |
|Garden Size ||10 million ||3,200 sq. ft. |
|Farm Size ||50 million ||1 Acre |
|Small Ranch Size||250 million||5 Acres |
|Large Ranch Size ||500 million||10 Acres |
How long does it take to see results?
In general 3-7 days for caterpillars such as cutworms, armyworms, sod sebworms. For grubs and weevils such as Japanese beetle, black vine weevil and billbugs feeding stops within 3 days with maximum control occurring over 2-4 weeks. Nematodes disintegrate the pests from the inside out. You will not see dead insect bodies as you would with a chemical knockdown.
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, due to their microscopic nature have limited range of movement. Generally NemAttack, our formulations of Steinernema will stay where you put them, but NemaSeek (Heterorhabditis) will continue moving through the soil until they find a pest to infect.
ARBICO Organics makes no guarantee of effectiveness due to subjectivity of application. ARBICO Organics guarantees live nematodes upon arrival of product and provides telephone backup for customer questions or problems.
2nd Day Shipping via UPS Air is required for 1/2 Garden, Garden, and Farm Sizes. The Small and Large Ranch Sizes Requires Next Day Shipping. There will be a $10 fee to upgrade 1/2 Garden, Garden , and Farm Sizes to Next Day Shipping.
When will my order ship?
- Orders ship Monday through Wednesday and may take 2 days to process.
- Orders placed after 5 PM (Arizona Time) on Tuesday will ship the following Monday unless Next Day Shipping is selected.
- Nematodes cannot be shipped to Hawaii or island states or nations.
HI, PR, VI, GU, AS, PW
Shelf Life: Up to 2 weeks (refrigerated and unopened in original container).
Storage: Store unopened in original container.