Product Name: Fenpropimorph

Product Name: Fenpropimorph

Chemical Name: (±)-cis-4-[3-(4-tert-butylphenyl)-2-methylpropyl]-2,6-dimethylmorpholine
CAS Number: 67564-91-4
Chemical Class: Morpholine fungicide
Formulation Types: Emulsifiable Concentrate (EC), Suspension Concentrate (SC)

🌿 Product Overview:

Fenpropimorph is a systemic morpholine fungicide used primarily in cereal crops for the control of powdery mildew, rusts, and leaf blotches caused by fungal pathogens. It belongs to the ergosterol biosynthesis inhibitors (EBIs), but unlike triazoles, it acts at different stages of sterol production, offering a unique mode of action that enhances resistance management strategies.

Fenpropimorph penetrates plant tissues and is transported upwards (acropetal movement), providing protective, curative, and some eradicative control. It is particularly valued for its ability to control fungal diseases resistant to other DMI fungicides, and is often used in tank mixtures or alternation programs to broaden the spectrum of disease control.

🔍 Key Features & Benefits:

• ✅ Systemic and contact action – absorbed and translocated in plant tissues

• ✅ Controls a wide range of leaf and stem fungal diseases

• ✅ Unique mode of action distinct from triazoles and strobilurins

• ✅ Effective against fungicide-resistant strains

• ✅ Ideal for resistance management programs

• ✅ Suitable for both preventative and early curative use

• ✅ Enhances grain yield and quality by protecting leaf area and plant health

🌾 Recommended Crops:

• Cereal crops: Wheat, barley, rye, oats

• Sugar beet

• Hops

• Ornamental plants (in some registered formulations)

🦠 Diseases Controlled:

• Powdery mildew (Blumeria graminis)

• Rusts (Puccinia spp.)

• Leaf blotch (Septoria tritici, Rhynchosporium spp.)

• Net blotch (Pyrenophora teres)

• Cercospora leaf spot (in sugar beets)

• Ramularia leaf spot

⚙️ Mode of Action:

Fenpropimorph is a morpholine fungicide that inhibits the sterol biosynthesis pathway in fungi. Specifically, it targets ∆14-reductase and ∆8→∆7-isomerase enzymes, interfering with the synthesis of ergosterol, an essential component of fungal cell membranes.

Its action is fungistatic, stopping fungal growth and spore production, and fungicidal at higher doses or with repeated exposure. It is classified by FRAC as a Group 5 fungicide, making it an excellent rotation partner to avoid cross-resistance with Group 3 (DMIs) or Group 11 (QoIs) fungicides.

📋 Application Guidelines:

• Application Method: Foliar spray using ground or aerial equipment

• Dosage:

  • Cereals: 0.5 – 1.0 L/ha depending on crop stage and disease pressure

  • Sugar beet: 0.75 – 1.25 L/ha

• Timing: Apply at early signs of infection or preventively during favorable conditions for disease development

• Spray Interval: 14–21 days depending on disease pressure

• Water Volume: 200–400 L/ha for field crops

• Pre-Harvest Interval (PHI): 28–35 days depending on the crop and local regulations

⚠️ Handling & Safety:

• Use personal protective equipment (PPE) when mixing and spraying

• Avoid contact with eyes, skin, and clothing

• Toxic to aquatic organisms – do not allow runoff to water bodies

• Store in a dry, cool, well-ventilated area, away from direct sunlight and food items

• Follow all local safety and usage guidelines, including SDS recommendations

📦 Packaging & Storage:

• Available Pack Sizes: 250 mL, 500 mL, 1 L, 5 L

• Formulation: EC or SC depending on the manufacturer

• Shelf Life: Up to 2 years if stored in original container under proper conditions

♻️ Resistance Management:

• Do not exceed 2–3 applications per season with morpholine fungicides

• Alternate or mix with fungicides from other FRAC groups (e.g., triazoles or strobilurins)

• Apply in combination with multi-site protectant fungicides for broader control

• Follow an integrated disease management (IDM) approach for sustainable protection

✅ Conclusion:

Fenpropimorph is a versatile and effective systemic fungicide tailored for cereal disease control. Its unique mode of action, strong protective and curative properties, and excellent fit in fungicide resistance management programs make it a key tool for growers aiming to maximize crop health, grain quality, and profitability.

🌾 Fenpropimorph – Powerful Protection with Unique Action.

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