Pyrimethanil Fungicide

Active Ingredient	Pyrimethanil 50%
Formulation Type	SC (Suspension Concentrate)
CAS Number	53112-28-0
Chemical Class	Anilinopyrimidine fungicide
Mode of Action	Inhibits methionine biosynthesis and fungal enzyme activity
Systemic Activity	Locally systemic (absorbed by fruit skin and leaf surface)
Application Uses	Pre-harvest foliar spray, post-harvest fruit wax integration, short dip treatment
Target Crops	Grapes, pears, citrus (oranges, lemons), apples (supplementary use)
Target Diseases	Botrytis, Penicillium, Alternaria, Anthracnose
Use Rate	Foliar spray: 100–200 mL/100L water Wax coating: 0.1%–0.3% of wax volume
Packaging Options	100ml, 250ml, 500ml, 1L bottles; 5L, 10L, 20L cans; 200L drums
OEM Support	Custom labels, anti-counterfeit packaging, multilingual print (EN, ES, RU, etc.)
Shelf Life	2 years (sealed, original container)
Storage	5–30°C, dry & ventilated environment, away from direct sunlight
Documents Available	COA, SDS, TDS, field protocol, registration support
MOQ	500L or per OEM agreement
Sample	Available upon request for trial or registration

How Pyrimethanil Works: Preventing Fungal Decay from the Inside Out

What is pyrimethanil?
Pyrimethanil is a systemic fungicide belonging to the anilinopyrimidine class, designed to stop fruit rot and other fungal diseases before symptoms appear. It works primarily through preventive activity—interrupting key cellular functions within fungal pathogens and blocking their ability to spread.

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Mode of Action: Two-Level Defense System

1. Inhibition of Methionine Biosynthesis
   Pyrimethanil blocks the production of methionine, an essential amino acid in fungi.
   • Without methionine, fungi cannot produce the proteins needed for growth and reproduction.
   • This leads to weakened pathogen development and failure to establish infection on the fruit surface.
2. Disruption of Cell Wall-Degrading Enzymes
   • Fungal invasion often begins when enzymes break down the fruit’s outer layer.
   • Pyrimethanil inhibits these enzymes, especially during wet or humid conditions.
   • This creates a protective barrier on fruit skin, preventing entry and colonization.

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Is Pyrimethanil Systemic?

Yes. Pyrimethanil is locally systemic:

• It is absorbed into the wax layer and surface cells of fruit or leaves.
• Provides long-lasting protection that persists even after light rainfall or irrigation.
• Ideal for pre-harvest spray programs and wax-based post-harvest applications.

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Why This Mode of Action Matters

Feature	Advantage
Preventive action	Stops infection before it starts
Protein inhibition	Halts spore germination and fungal spread
Enzyme disruption	Protects fruit from decay entry points
Compatibility	Works well with contact or multisite fungicides in rotation

Unlike curative-only fungicides, pyrimethanil builds a proactive shield, helping your fruit enter storage or export with the best possible protection.

Target Crops and Pathogens: Where Pyrimethanil Excels

Pyrimethanil fungicide is primarily used to protect fruit crops that are prone to post-harvest decay, especially those stored or exported under high humidity or long transit conditions. Its dual-mode action makes it ideal for preventing surface rot, gray mold, and storage pathogens.

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1. Grapes

Disease	Controlled Pathogens	Application	Timing
Gray Mold	Botrytis cinerea	Foliar spray or pre-storage dip	Pre-harvest and/or pre-cooling
Stem-end Rot	Fungal complex	Wax coating or short dip	Post-harvest processing

Grapes are highly perishable, and Pyrimethanil is one of the few actives that effectively guards against Botrytis during both growing and cold chain phases.

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2. Pears

Disease	Pathogens	Use	Application
Storage Rot	Penicillium, Alternaria spp.	Fruit waxing or light misting	Post-harvest line
Blue Mold	Penicillium expansum	Spray or wax mix	Export-focused production lines

Pears often develop rot during shipping or display, making Pyrimethanil ideal for residual, non-staining protection.

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3. Oranges and Lemons (Citrus)

Disease	Pathogens	Treatment	Notes
Green Mold, Blue Mold	Penicillium digitatum, P. italicum	Wax mix or spray	Use in 0.1–0.3% wax solution for better skin adherence
Anthracnose	Colletotrichum spp.	Pre-harvest foliar spray	Combine with multi-site for full-spectrum defense

Pyrimethanil on oranges and lemons ensures that citrus fruit stays clean, bright, and mold-free in export cartons and retail shelves.

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4. Apples (Supplemental)

While not a primary label crop in all regions, Pyrimethanil may also be used on apples in low-concentration wax programs to reduce stem-end decay and blue mold during storage.

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Summary of Key Use Cases

Crop	Application	Disease Controlled
Grapes	Foliar spray / wax	Botrytis, gray mold
Pears	Wax mix / spray	Penicillium rot, storage decay
Oranges, Lemons	Spray / wax mix	Green mold, anthracnose
Apples	Wax mix	Supplemental rot control

If your fruit is destined for storage, transport, or export, pyrimethanil helps keep its market value intact.

Recommended Application Methods and Dosage: How to Use Pyrimethanil for Maximum Protection

Pyrimethanil 50% SC is designed for easy dilution, flexible application, and high efficacy at low concentrations. It’s suited for both field spraying before harvest and post-harvest integration into fruit wax—giving producers a complete fungal control solution across the crop life cycle.

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1. Pre-Harvest Foliar Spray

Purpose: Prevent early fungal infection and reduce disease load entering storage

Crop	Dilution Ratio	Concentration	Timing
Grapes	100–200 mL / 100L water	0.1%–0.2% solution	7–10 days before harvest
Pears	150–200 mL / 100L	0.15%–0.2%	Before rainy period or pre-harvest
Citrus (oranges, lemons)	100–150 mL / 100L	0.1%–0.15%	10–14 days before picking

• Application volume: 500–1000 L/ha depending on canopy size
• Spray method: Use mist sprayers or boom sprayers for even coverage
• Weather: Apply during dry, cool conditions; avoid within 3 hours of rainfall

Pre-harvest application helps reduce infection points before harvest and during storage.

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2. Post-Harvest Wax Coating Integration

Purpose: Provide ongoing mold protection during storage, shipping, and retail display

Application Method	Pyrimethanil Dosage	Notes
Wax integration (manual or automated)	0.1%–0.3% by volume	Add 100–300 mL pyrimethanil SC to 100L wax
Spray-on wax coating	0.15%–0.2%	For conveyor-line treatment tunnels
Short dip treatment	0.1%–0.15%	30-second immersion before waxing

• Stir continuously to ensure even distribution in wax emulsion
• Ensure fruit is dry and clean before waxing for better adhesion
• Let coated fruit dry completely before packing

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Tips for Best Results

• Use clean, neutral pH water for diluting SC formulation
• Apply at the first signs of increased humidity or fungal pressure
• For integrated control, rotate with fungicides of a different FRAC code
• Use dedicated tanks when mixing with wax to avoid surfactant breakdown

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Sample Calculation

If you are treating 10,000 kg of citrus fruit with a 0.2% wax coating:

• You’ll need 200 mL of Pyrimethanil 50% SC per 100L of wax emulsion
• For 200L wax tank → use 400 mL of product

Whether used in the vineyard or the packing house, Pyrimethanil delivers consistent, residue-compliant fungal protection—without staining or phytotoxicity.

Advantages and Technical Highlights: Why Choose Pyrimethanil?

Pyrimethanil 50% SC stands out as a modern, flexible, and highly efficient solution for fruit disease control, trusted by producers and exporters worldwide. Whether you’re preparing crops for harvest or preserving value during transport, Pyrimethanil offers unmatched versatility and reliability.

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1. Broad-Spectrum, Targeted Control

• Highly effective against key post-harvest and storage fungi, including Botrytis, Penicillium, and Alternaria
• Prevents both surface decay and latent infection, reducing the need for repeated treatment
• Especially valuable in high-humidity crops such as grapes, pears, oranges, and lemons

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2. Unique Mode of Action for Preventive Power

• Inhibits methionine synthesis and cell wall-degrading enzymes, effectively halting fungal development
• Works before visible symptoms appear, reducing spore spread and infection hotspots
• Suitable for resistance management programs, especially when rotated with multisite or contact fungicides

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3. Excellent Fit for Post-Harvest Handling

• Can be blended into fruit wax emulsions without disrupting visual appearance or gloss
• Provides residual protection throughout transport and storage, minimizing waste and decay losses
• Delivers low residue levels, compliant with international MRL standards—ideal for exporters

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4. Safe, Crop-Friendly Formulation

• Non-phytotoxic when used as directed
• Compatible with standard spray equipment and waxing lines
• No staining or residue buildup on fruit skin

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5. Cost-Efficient at Low Dose

• Effective at just 0.1–0.2% concentration
• Low volume needed per ton of treated fruit
• Reduces total input costs while increasing marketable yield

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6. OEM and Market Adaptability

• Available for OEM customization with your brand label and multilingual packaging
• Supports fruit treatment product lines for packing houses, distributors, and regional brands
• Includes documentation (COA, SDS, TDS) for registration or export support

From orchard to shelf, pyrimethanil fungicide helps fruit arrive fresher, cleaner, and with less loss—protecting your harvest, your brand, and your bottom line.

Formulations and OEM Options: Flexible Delivery for Global Crop Protection

To support international fruit producers, packing houses, and agrochemical distributors, we provide Pyrimethanil 50% SC in a format optimized for ease of use, efficient transport, and scalable distribution. Whether you need branded retail packs or bulk technical supply, our team can meet your packaging, labeling, and documentation needs.

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Available Formulation

Formulation	Description	Application Use
Pyrimethanil 50% SC	Suspension concentrate with excellent dispersibility and residue control	Foliar spray, wax integration, post-harvest dip

• Easy dilution in water or wax
• Long-lasting suspension stability
• Low-odor and safe-to-handle formulation

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Packaging Options

We provide a range of industrial and retail-friendly packaging sizes, suitable for different markets and operational scales.

Packaging Type	Available Sizes	Usage Scenario
HDPE Bottles	100ml / 250ml / 500ml / 1L	Small-scale farms, trial orders
Jerry Cans	5L / 10L / 20L	Farm distributors, packing plants
UN Drums	200L	Bulk purchasing, national distribution

All containers are:

• Leak-proof and UV-protected
• UN-certified for safe international transport
• Customizable with private label designs and multilingual content

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OEM and Private Label Services

Whether you’re building a regional pesticide line or fulfilling a government procurement contract, we support full-stack OEM implementation:

• Custom labels and carton designs
• Multi-language printing for international markets
• COA, SDS, TDS, and field trial protocols available
• Anti-counterfeit measures: QR codes, batch tracking, holograms
• Flexible MOQs for both pilot batches and large orders

With our support, you don’t just buy pyrimethanil—you launch a complete, export-ready brand.

Storage, Safety, and Environmental Handling

While Pyrimethanil fungicide is designed for safe and efficient use in agricultural operations, proper handling is critical to maintain product efficacy, protect users, and reduce environmental risks. This section outlines best practices for storage, application safety, and waste management.

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Safe Storage Recommendations

Factor	Guideline
Temperature	Store between 5°C and 30°C in a dry, shaded area
Moisture Control	Keep tightly sealed to prevent water ingress or degradation
Light Protection	Avoid direct sunlight to preserve formulation stability
Segregation	Store separately from food, animal feed, seeds, and water sources
Shelf Life	2 years in original packaging under proper conditions

Keep containers upright and tightly closed when not in use. Follow a first-in, first-out (FIFO) inventory policy for optimal usage.

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Handling & Safety Measures

• Wear gloves, long sleeves, goggles, and masks during mixing and spraying
• Do not eat, drink, or smoke while handling the product
• Avoid skin and eye contact and inhalation of spray mist
• Wash thoroughly after use, especially before handling food or livestock
• Use in well-ventilated areas or with proper exhaust if applied indoors (e.g., packing houses)

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First Aid Instructions

Exposure Type	Response
Skin Contact	Wash with plenty of water and soap for 15 minutes
Eye Contact	Rinse eyes with clean water for at least 15 minutes; seek medical advice
Inhalation	Move to fresh air; consult a doctor if symptoms occur
Ingestion	Do not induce vomiting; seek immediate medical attention

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Environmental Safety Guidelines

Although Pyrimethanil pesticide is considered low-risk to mammals and birds, proper environmental handling is essential:

• Do not apply near water bodies (ponds, streams, aquaculture)
• Prevent spray drift into unintended crops or natural habitats
• Avoid contamination of irrigation ditches, wells, or storm drains
• Do not reuse or refill empty containers
• Dispose of waste and rinsate in accordance with local agrochemical disposal laws

Empty containers should be triple-rinsed, punctured, and recycled or incinerated as permitted by local regulations.

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Transport & Compliance

• Packaged in UN-certified containers for international shipping
• Labeled according to GHS and country-specific chemical safety regulations
• Documentation provided: COA, MSDS, batch number, shelf life, safety instructions

FAQ & Buyer’s Guide

What is Pyrimethanil used for?

Pyrimethanil fungicide is primarily used to prevent gray mold, blue mold, and storage rots in fruit crops like grapes, pears, citrus (oranges, lemons). It is effective when applied as a pre-harvest foliar spray or as a post-harvest wax coating additive, especially for fruits destined for storage and export.

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What is the mode of action of Pyrimethanil?

Pyrimethanil works by:

• Inhibiting methionine biosynthesis, a key amino acid fungi need for protein development
• Blocking enzymes responsible for breaking down plant cell walls, stopping fungi from entering fruit skin

This makes it a preventive, locally systemic fungicide—ideal for high-value fruit protection.

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Can I use Pyrimethanil on oranges or lemons?

Yes. Pyrimethanil on oranges and lemons is commonly used to prevent Penicillium decay, especially during cold storage or shipment. It is often applied via:

• Low-dose foliar sprays before harvest
• Integration into citrus wax coatings at 0.1%–0.3%

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Is Pyrimethanil a systemic fungicide?

Yes, it is locally systemic. It is absorbed by surface cells of fruit or leaves and offers residual protection, but does not move throughout the entire plant like fully systemic fungicides.

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How do I apply Pyrimethanil correctly?

• Spraying: Use 0.1%–0.2% solution in clean water, 7–10 days before harvest
• Wax coating: Mix 0.1%–0.3% into fruit wax for post-harvest protection
• Use mist sprayers or wax tunnels with proper mixing for even coverage

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How do I buy Pyrimethanil in bulk?

You can order:

• OEM/private label branded product (100ml–20L formats)
• Bulk technical supply in 200L UN drums
• We support custom formulation packaging, multi-language labeling, and document kits for registration

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What is the typical pyrimethanil price?

The price of Pyrimethanil 50% SC depends on:

• Order volume and packaging size
• Destination port or region
• Labeling and OEM customization requirements

Contact us for a tailored FOB/CIF quotation with tech pack and sample support.

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Ready to Protect Your Fruit from Farm to Shelf?

We support:

• Global fruit exporters and packhouses
• Agrochemical distributors and importers
• Private label fungicide brand owners

With:

• Samples for testing
• OEM support
• Technical documentation (COA, SDS, field protocols)
• Fast production and export delivery

Contact us today to buy pyrimethanil, discuss your custom label project, or request a trial pack.