Propizol

Arborjet · Propiconazole · EPA Reg 74578-8 · Fungicide Document last checked 2026-05-30

About this product

Active ingredient Propiconazole

Manufacturer Arborjet

Category Fungicide

Full details for Propizol

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. 74578-8 — 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. 74578-8 →

Propizol is a systemic fungicide used for the control of various fungal diseases in turfgrass and ornamental plants. The active ingredient is Propiconazole at a concentration of 14.3%. It is designed for use as a foliar spray on turfgrasses, as well as through trunk injection, micro-injection, or soil injection for trees. For turf, it controls diseases such as Dollar Spot, Brown Patch, Gray Leaf Spot, and Large Patch. For trees, it is used to manage diseases like Dutch Elm Disease, Anthracnose, and various cankers. Application methods vary by target: turf is applied via foliar spray, while trees can be treated via trunk injection (for larger diameters) or micro-injection (for smaller diameters). When using trunk injection, the product is diluted with water and injected into the tree's vascular system. Handling requires specific personal protective equipment, including chemical-resistant gloves, protective eyewear, and long-sleeved shirts. It is important to note that the product should not be applied to certain plants like violets, begonias, or ferns, and specific timing/weather precautions apply to prevent runoff and ensure efficacy.

Pests covered (3)

Dollar Spot, Brown Patch, Gray Leaf Spot, Large Patch, etc.Dutch Elm Disease, Anthracnose, various cankersAnthracnose, Fusarium

Areas treatable (2)

TurfgrassTrees

Application instructions from the label 2

Turfgrass

Foliar spray application.

Target pest: Dollar Spot, Brown Patch, Gray Leaf Spot, Large Patch, etc.
Location: Outdoor

Trees

Trunk injection, micro-injection, or soil injection.

Target pest: Dutch Elm Disease, Anthracnose, various cankers
Location: Outdoor

Mixing instructions 3

For pests	Location	Label notes
Turfgrass diseases	Outdoor	Foliar spray application.
Tree diseases (Trunk Injection)	Outdoor	Dilute with water; see table for specific DBH and volume requirements.
Tree diseases (Micro-injection)	Outdoor	Dilute with water; see table for specific DBH and volume requirements.

Worker safety

Re-entry interval (REI) 24

PPE required Chemical-resistant gloves, protective eyewear, long-sleeved shirt, long pants, and shoes.

Timing & weather

Avoid application when rain is expected within 24 hours.
For certain turf applications, avoid application during high heat or drought stress.

Use restrictions 3

Do not apply to violets, begonias, ferns, or geraniums.
Do not apply to certain plants listed in the 'Plants to be Treated' section.
Do not apply to trees in areas treated by trunk injection within 24 hours of other chemical treatments.