Chemicalssyngentachairman

Chairman

Syngenta · Fludioxonil · EPA Reg 100-1530 · Fungicide Document last checked 2026-05-30

About this product

Active ingredient Fludioxonil
Manufacturer Syngenta
Category Fungicide

Full details for Chairman

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. 100-1530 — 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. 100-1530 →

Chairman is a post-harvest fungicide used to control saprophytic surface molds and butt rot in specific crops. It is a supoemulsion (SE) formulation containing two active ingredients: Fludioxonil (21.7%) and Propiconazole (9.3%). It is specifically labeled for use on Pineapple (to control Penicillium spp., Cladosporium spp., and Ceratocystis paradoxa) and Stone Fruit (including apricot, nectarine, peach, plum, damson, Japanese plum, and prune) to control diseases such as brown rot, gray mold, Rhizopus rot, Gilbertella rot, and sour rot. Application methods include drenching, directed peduncle spray, in-line dip/drench (for nectarines only), and in-line aqueous or fruit coating spray. For pineapple, a single application is defined as both a drench and a directed peduncle spray. Users must maintain agitation during mixing and application to keep the solution in suspension. Handling requires caution: it is harmful if swallowed and can cause moderate eye irritation. Personal Protective Equipment (PPE) includes long-sleeved shirts, long pants, shoes plus socks, and chemical-resistant gloves (butyl rubber, nitrile, neoprene, PVC, or Viton). Depending on the task, a NIOSH-approved particulate respirator or supplied air may be required. The product is toxic to fish, aquatic invertebrates, oysters, and shrimp; do not contaminate water with washwaters or rinsates.

Pests covered (5)
Penicillium spp. surface moldsCladosporium spp. surface moldsButt Rot (Ceratocystis paradoxa)Butt RotBrown rot, Gray mold, Rhizopus rot, Gilbertella rot, Sour rot
Areas treatable (3)
PineappleNectarinesStone Fruit

How to treat each type of area 8

Pineapple

Target pest Location Rate Unit Dilution Label notes
Penicillium spp. surface molds Outdoor 32 fl oz/100 gal fl oz/gal water or wax/oil emulsion Drench High Volume (Dilute) Application
Cladosporium spp. surface molds Outdoor 32 fl oz/100 gal fl oz/gal water or wax/oil emulsion Drench High Volume (Dilute) Application
Butt Rot (Ceratocystis paradoxa) Outdoor 32 fl oz/100 gal fl oz/gal water or wax/oil emulsion Drench High Volume (Dilute) Application
Penicillium spp. surface molds Outdoor 32 fl oz/100 gal fl oz/gal water or wax/oil emulsion Directed Peduncle Spray (Dilute) Application
Cladosporium spp. surface molds Outdoor 32 fl oz/100 gal fl oz/gal water or wax/oil emulsion Directed Peduncle Spray (Dilute) Application
Butt Rot Outdoor 32 fl oz/100 gal fl oz/gal water or wax/oil emulsion Directed Peduncle Spray (Dilute) Application

Nectarines

Target pest Location Rate Unit Dilution Label notes
Brown rot, Gray mold, Rhizopus rot, Gilbertella rot, Sour rot Outdoor 16 fl oz/100 gal fl oz/gal water, wax/oil emulsion, or aqueous dilution of wax/oil emulsion In-Line Dip/Drench Application (For Nectarines ONLY); dip for approx 30 seconds

Stone Fruit

Target pest Location Rate Unit Dilution Label notes
Brown rot, Gray mold, Rhizopus rot, Gilbertella rot, Sour rot Outdoor 16 fl oz/200,000 lb of fruit fl oz/lb fruit appropriate water, wax/oil emulsion, or aqueous dilution of wax/oil emulsion In-Line Aqueous or Fruit Coating Spray Application

Mixing instructions 3

For pests Amount Per Finished strength Label notes
Pineapple (Drench/Peduncle) 32 fl oz per 100 gal Mix in 100 gallons of water or appropriate water, wax/oil emulsion. Maintain agitation.
Nectarines (Dip/Drench) 16 fl oz per 100 gal Mix in 100 gallons of water, wax/oil emulsion, or aqueous dilution of wax/oil emulsion.
Stone Fruit (Spray) 16 fl oz per 200,000 lb fruit Mix in appropriate water, wax/oil emulsion, or aqueous dilution of wax/oil emulsion.

Worker safety

PPE required Long-sleeved shirt and long pants; Shoes plus socks; Chemical-resistant gloves (butyl rubber, nitrile, neoprene, PVC, or Viton); NIOSH-approved particulate filtering facepiece respirator (if required by task/exposure).

Timing & weather

Use restrictions 3