Fontelis 12

CaroVail · Mineral Oil · EPA Reg 352-834 · 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. 352-834 →

Fontelis 12 is a suspension concentrate fungicide containing 20.4% Penthiopyrad. It is used for the prevention and control of various fungal diseases in a wide range of crops, including vegetables (such as tomatoes, cucumbers, and leafy greens), fruits (such as berries, stone fruit, and tree nuts), and certain ornamentals. It works by targeting specific fungal pathogens like Botrytis gray mold, powdery mildew, and various leaf spots. The product can be applied via various methods including soil application, in-furrow spray, drip irrigation, or foliar spray. When using in a tank mix, users must ensure compatibility with other products. Key handling notes include wearing long-sleeved shirts, long pants, shoes, and socks, and avoiding contact with water or edible crops during application. It is important to follow specific pre-harvest intervals (PHI) which vary by crop, ranging from 0 to 28 days.

Pests covered (1)

Botrytis gray mold, powdery mildew, various leaf spots, etc.

Areas treatable (1)

Various crops (Alfalfa, Berries, Bulb vegetables, Cucurbits, Fruit, Leafy greens, etc.)

How to treat each type of area 1

Various crops (Alfalfa, Berries, Bulb vegetables, Cucurbits, Fruit, Leafy greens, etc.)

Target pest	Location	Rate	Unit	Label notes
Botrytis gray mold, powdery mildew, various leaf spots, etc.	Outdoor	Varies by crop	fl oz per acre	Check specific crop tables for exact rates and PHI.

Mixing instructions 1

Label notes
Tank mixing requires compatibility checks; do not mix with certain surfactants or oils unless specified.

Worker safety

PPE required Long-sleeved shirt, long pants, shoes and socks, and chemical-resistant gloves (if handling concentrates).

Timing & weather

Begin applications prior to disease development and continue on a 7- to 14-day interval. Use higher rate and shorter interval when disease pressure is high.

Use restrictions 3

Do not use on home plantings.
Do not formulate into other end-use products.
In New York, do not exceed 61 fl oz (0.80 lbs ai) per acre.

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.