AbbA Ultra

AMVAC · EPA Reg 5481-621 · Insecticide / Miticide Document last checked 2026-05-30

About this product

Active ingredient Pending extraction

Manufacturer AMVAC

Category Insecticide / Miticide

Full details for AbbA Ultra

EPA registration data Reg. 5481-621 — 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.

Add your experience

Sign in through the portal or Create a free account to post. Comments are reviewed before they appear. Need a website for your pest-control business? See site plans.

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. 5481-621 →

AbbA Ultra is a restricted-use insecticide containing the active ingredient Abamectin (Group 6). This product is specifically a FIFRA 24(c) Special Local Need Label (SLN) intended for use on alfalfa grown for seed to control spider mites. It is designed for use within the state of Washington. Application can be performed via ground or aerial methods. When applying via ground, use 4-8 fl oz per acre in a minimum of 20 gallons of water. For aerial applications, use 6-8 fl oz per acre in a minimum of 10 gallons of water per acre. Users must adhere to a restricted-entry interval (REI) of 12 hours. This product is highly toxic to fish, mammals, and aquatic organisms. It is critical to avoid application through irrigation systems and to prevent drift onto blooming crops or weeds. Do not apply within 21 days of a last treatment or if an alternative miticide with a different mode of action has been used. Users must follow all Worker Protection Standard requirements and ensure the EPA-registered label is present during application. Note that this specific SLN registration expires after December 31, 2027.

Pests covered (2)

spider mitesMites, Spiders

Areas treatable (1)

alfalfa grown for seed

How to treat each type of area 2

alfalfa grown for seed

Target pest	Location	Rate	Unit	Dilution	Label notes
spider mites	Outdoor	4-8	fl oz/acre	minimum 20 gallons of water per acre (ground)	Ground application
spider mites	Outdoor	6-8	fl oz/acre	minimum 10 gallons of water per acre (aerial)	Aerial application

Mixing instructions 2

For pests	Amount	Per	Label notes
spider mites	4-8	fl oz/acre	Ground application: minimum 20 gallons of water per acre
spider mites	6-8	fl oz/acre	Aerial application: minimum 10 gallons of water per acre

Worker safety

Re-entry interval (REI) 12

PPE required Follow all Worker Protection Standard requirements.

Timing & weather

Do not apply if product is likely to drift to blooming crops or weeds.

Use restrictions 9

Restricted Use Pesticide: For use only by certified applicators or persons under their direct supervision.
Do not apply through any irrigation system.
Do not apply to blooming crops or weeds; product is highly toxic to bees.
Do not apply within 21 days of the last treatment or after an alternative miticide with a different mode of action.
Do not apply ground application within 25 ft of or aerial application within 150 ft of lakes, reservoirs, rivers, permanent streams, marshes, pot holes, natural ponds, estuaries, or commercial fish farm ponds.
Do not cultivate within 25 ft of the aquatic area to allow growth of vegetative filter strip.
Do not apply more than 2 applications per cropping season.
Do not apply more than 16 fl oz/a (0.038 lb ai/a) per cropping season.
Alfalfa seed treated with this product may not be distributed for human or animal food/feed.