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Junction

SePRO · Copper 30.0% · EPA Reg 67690-35 · Insecticide Document last checked 2026-05-30

About this product

Active ingredient Copper 30.0%
Manufacturer SePRO
Category Insecticide

Full details for Junction

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. 67690-35 — 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. 67690-35 →

Junction is a broad-spectrum fungicide/bactericide used to control various plant diseases on ornamental plants, turf, and grasses. It contains Mancozeb (15.0%) and Copper (46.1% as copper hydroxide) as active ingredients. It is effective against a wide range of fungal and bacterial pathogens, including diseases like fire blight, anthracnose, and various leaf spots. The product can be used for both indoor (greenhouse) and outdoor applications. For greenhouse ornamentals, it is applied as a thorough coverage spray at a rate of 1.5 to 3.5 lbs per 100 gallons of water. For turf and landscape ornamentals, application rates vary by specific plant type and disease. Handling notes: This product is corrosive and can cause irreversible eye damage. It is harmful if swallowed or inhaled. Always wear appropriate PPE, including long-sleeved shirts, long pants, shoes plus socks, waterproof gloves, and protective eyewear. When mixing or applying, avoid contact with skin and eyes. Do not apply to fruit trees by homeowners. Use caution when applying near masonry or metal surfaces to avoid staining. To manage resistance, rotate Junction with other FRAC Group M1 and M3 fungicides. Always follow specific plant-by-plant instructions provided in the label tables for optimal efficacy and to prevent phytotoxicity.

Pests covered (1)
Various fungal and bacterial diseases (e.g., Fire blight, Anthracnose, Leaf spots)
Areas treatable (1)
Ornamental plants, turf, and grasses

How to treat each type of area 1

Ornamental plants, turf, and grasses

Target pest Location Rate Unit Dilution Label notes
Various fungal and bacterial diseases (e.g., Fire blight, Anthracnose, Leaf spots) Both 1.5-3.5 lbs per 100 gallons As directed per plant type Check specific plant tables for exact rates and timing.

Mixing instructions 1

For pests Location Per Finished strength Label notes
Ornamental greenhouse use Indoor 1.5-3.5 As directed One-half (1/2) tablespoon per 100 gallons is approximately 1.75 lbs of Junction.

Worker safety

Re-entry interval (REI) 48 hours (for restricted entry interval in agricultural settings)
PPE required Long-sleeved shirt and long pants; Shoes plus socks; Waterproof gloves; Protective eyewear.

Timing & weather

Use restrictions 5