Chemicalssyngentaalto-100-sl

Alto 100 SL

Syngenta · EPA Reg 100-1226 · Fungicide Document last checked 2026-05-30

About this product

Active ingredient Pending extraction
Manufacturer Syngenta
Category Fungicide

Full details for Alto 100 SL

Source product label ↗ Open the catalog source label while the local copy is reviewed. Verify the product name, EPA registration number, and revision before use. Source safety data sheet ↗ Open the catalog source SDS while the local copy is reviewed. Verify the exact product and revision before relying on it. EPA registration data Reg. 100-1226 — 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. 100-1226 →

Alto 100SL Fungicide is a broad-spectrum fungicide containing 6.9% Cyproconazole. It is a soluble concentrate formulation designed for the control of various plant diseases in soybeans, peanuts, and wheat. The product can be applied via ground, aerial, or chemigation methods. When using this product, technicians should be aware of its potential for groundwater contamination, particularly in areas with permeable soils or shallow water tables. Handling requires specific personal protective equipment, including long-sleeved shirts, long pants, chemical-resistant gloves (barrier laminate or butyl rubber ≥ 14 mils), and shoes plus socks. Always follow local agricultural recommendations for spray equipment calibration to ensure proper coverage and to minimize drift. Resistance management is critical; users should rotate Alto 100SL with fungicides from different groups to prevent pest resistance development.

Pests covered (1)
listed plant diseases
Areas treatable (1)
soybeans, peanuts, and wheat

Application instructions from the label 1

soybeans, peanuts, and wheat

Target pest
listed plant diseases
Location
Outdoor

Mixing instructions 1

Label notes
Can be mixed with tank-mix partners listed on the label; perform a compatibility test before use. If using chemigation, follow specific instructions in section 4.5.

Worker safety

Re-entry interval (REI) 12
PPE required Long-sleeved shirt and long pants; Chemical-resistant gloves made of barrier laminate or butyl rubber ≥ 14 mils; Shoes plus socks.

Use restrictions 3