BASAMID G

AMVAC · EPA Reg 5481-9027 · Fumigant Document last checked 2026-05-30

About this product

Active ingredient Pending extraction

Manufacturer AMVAC

Category Fumigant

Full details for BASAMID G

EPA registration data Reg. 5481-9027 — 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. 5481-9027 →

Basamid G is a soil fumigant used for the pre-planting control of listed weeds, nematodes, and soil diseases. It is intended for use in turfgrass, ornamentals, field nurseries, green houses, hoop houses, soil media, and nonbearing crops. The active ingredient is Dazomet (Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione) at 99.0%. This product is a restricted-use pesticide due to acute inhalation toxicity to humans and is corrosive, causing skin burns and eye damage. It is also toxic to fish and aquatic invertebrates. Handling requires strict adherence to the Worker Protection Standard (WPS). Key safety notes include the requirement for air-purifying respirators under specific conditions, chemical-resistant clothing (aprons, gloves, suits), and eye protection. If sensory irritation occurs during application, handlers must immediately leave the application block and buffer zone. The product must be applied according to specific site-specific management plans and buffer zone requirements to mitigate environmental risks.

Pests covered (2)

weeds, nematodes, and soil diseasesNematodes

Areas treatable (1)

turfgrass, ornamentals, field nurseries, green houses, hoop houses, soil media, and nonbearing crops

Application instructions from the label 1

turfgrass, ornamentals, field nurseries, green houses, hoop houses, soil media, and nonbearing crops

Pre-planting control only.

Target pest: weeds, nematodes, and soil diseases
Location: Outdoor

Worker safety

Re-entry interval (REI) Entry Restricted Period (REI) varies; refer to specific application instructions in the full label.

PPE required Chemical-resistant apron; chemical-resistant headgear (for overhead exposure); chemical-resistant gloves; shoes plus socks; protective eyewear (goggles, face shield, safety glasses); air-purifying respirator (NIOSH certified full facepiece) as required by specific directions for use.

Timing & weather

Pre-planting application.
Avoid application if heavy rainfall is expected after soil fumigation due to leaching/runoff risks.

Use restrictions 3

Restricted Use Pesticide due to acute inhalation toxicity to humans.
Do not apply directly to water or areas where surface water is present or to intertidal areas below the mean high water mark.
Must be used in accordance with the Worker Protection Standard (WPS).