Junction

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

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

Apply at first sign of disease and repeat at 7-14 day intervals as needed.
Avoid application during periods of wet weather or high rain to prevent runoff/phytotoxicity.

Use restrictions 5

Do not use on fruit trees by homeowners.
Do not use on pachysandra.
Do not apply in a spray solution having a pH of less than 6.5.
Do not mix with products containing diazinon, fosetyl-al, or other aluminum-containing products.
Do not apply through irrigation (chemigation) systems unless specifically permitted for certain types.

Label SDS

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Document text and citations

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Reference only. Always read and follow the most current EPA-approved label on the product container. State and local restrictions may apply that are not reflected in this digitised copy. Verify the EPA registration number and revision date before use.