COUNTER 20G SmartCartridge

AMVAC · EPA Reg 5481-562 · Insecticide / Nematicide Document last checked 2026-05-30

About this product

Active ingredient Pending extraction

Manufacturer AMVAC

Category Insecticide / Nematicide

Full details for COUNTER 20G SmartCartridge

EPA registration data Reg. 5481-562 — registry reference, signal word and status.

Applicator discussion

Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.

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According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 5481-562 →

COUNTER 20G SmartCartridge is a systemic insecticide and nematicide used at planting in field corn, corn grown for seed, popcorn, sweet corn, sugar beets, and grain sorghum. The active ingredient is Terbufos at 20.0% by weight. It is designed for use with a closed loading system to control a wide range of pests, including corn rootworms, wireworms, white grubs, corn flea beetles, maize billbugs, southern corn billbugs, thrips, symphylans, chinch bugs, nematodes, lesion lance, root knot, spiral stunt, stubby root, dagger cutworms, and lesser cornstalk borers. The product is highly toxic and is classified as a restricted pesticide due to acute oral, dermal, and inhalation toxicity, as well as risks to aquatic organisms and wildlife. It must be used by certified applicators. Handling requires specific personal protective equipment (PPE), including long-sleeved shirts, long pants, shoes plus socks, and protective eyewear. In some application scenarios, chemical-resistant gloves and respiratory protection (NIOSH-approved) may be required. Always follow specific engineering controls and safety rules to prevent exposure. The product is highly toxic to fish and wildlife; avoid application near water or in areas where runoff may occur.

Pests covered (2)

Corn Rootworm larvae, Wireworms, White Grubs, Seedcorn Maggots, Seedcorn Beetles, Corn Flea Beetles, Maize Billbugs, Southern Corn Billbugs, Thrips, Symphylans, Chinchbugs, Nematodes, Lance, Lesion, Root Knot, Spiral, Stunt, Stubby root, Dagger Cutworms, Lesser Cornstalk BorersNematodes

Areas treatable (1)

Field Corn, Field Corn Grown for Seed, Popcorn, Sweet Corn, Sugar Beets, Grain Sorghum

How to treat each type of area 1

Field Corn, Field Corn Grown for Seed, Popcorn, Sweet Corn, Sugar Beets, Grain Sorghum

Target pest	Location	Rate	Unit	Label notes
Corn Rootworm larvae, Wireworms, White Grubs, Seedcorn Maggots, Seedcorn Beetles, Corn Flea Beetles, Maize Billbugs, Southern Corn Billbugs, Thrips, Symphylans, Chinchbugs, Nematodes, Lance, Lesion, Root Knot, Spiral, Stunt, Stubby root, Dagger Cutworms, Lesser Cornstalk Borers	Outdoor	4.5 to 6 oz.	per 1,000 ft. of row	Banded or In-Furrow; place granules 4 to 5 inch-band over the presheeth and incorporate evenly into the top 1 inch of soil. DO NOT exceed 6.5 pounds of Counter 20G per acre.

Worker safety

Re-entry interval (REI) 48

PPE required Loaders, applicators and other handlers using engineering controls must wear: Long-sleeved shirt and long pants; Shoes plus socks; Protective eyewear. Depending on application, may require chemical-resistant gloves and NIOSH-approved respiratory protection.

Timing & weather

Do not apply in wet soil conditions that may prevent the equipment from covering pesticide granules.
Do not apply to flooded areas.

Use restrictions 12

DO NOT contaminate food or feed products.
DO NOT use or store in or around home.
Keep out of reach of Domestic Animals.
DO NOT apply directly to water or to areas where surface water is present or to intertidal areas below the mean high water mark.
DO NOT contaminate water when disposing of equipment wastewater or rinsate.
DO NOT apply in wet soil conditions that may prevent the equipment from covering granules.
DO NOT apply to flooded areas.
DO NOT harvest sweet corn within 60 days after application.
DO NOT graze or cut for forage within 30 days of application.
DO NOT harvest sugar beets or feed tops to livestock within 150 days of a knifed-in application.
DO NOT harvest grain sorghum forage or fodder within 100 days after treatment.
If applied to sorghum, do not use if ALS-inhibitor (HRAC group 2) herbicides were applied within 30 days unless specified by the herbicide label.