Proprietary Active Chemistries and Modes of Action
BASF's fungicide portfolio is anchored by two foundational chemical discoveries: Xemium (Fluxapyroxad) and F-500 (Pyraclostrobin). Xemium belongs to the carboxamide group (SDHI - FRAC Group 7), which blocks Complex II succinate dehydrogenase in fungal mitochondria.
Its unique molecular mobility allows it to pass through both lipophilic wax layers and hydrophilic cell walls. F-500 belongs to the strobilurin class (QoI - FRAC Group 11), inhibiting mitochondrial Complex III respiration while delivering AgCelence physiological plant health benefits.
- Xemium SDHI Technology: Delivers long-lasting systemic protection against sheath blight, leaf spots, and powdery mildew.
- F-500 Strobilurin Chemistry: Enhances nitrate reductase activity, decreases ethylene production, and boosts chlorophyll retention.
- Dual-Action Formulations: Combines preventive and curative modes to reduce resistance risks across diverse crops.
Key Commercial Products and Target Crops
BASF markets specialized commercial brands tailored for specific agricultural cropping systems. Priaxor (Fluxapyroxad + Pyraclostrobin) is widely used in soybean, cotton, and maize against frogeye leaf spot, rusts, and anthracnose.
Cabrio Top (Pyraclostrobin + Metiram) protects grapes, apples, and potatoes against downy mildew and late blight; Opera targets groundnut tikka; while Seltima (Pyraclostrobin CS) is micro-encapsulated for paddy blast and sheath blight with high aquatic safety.
- Priaxor: Advanced SDHI + Strobilurin for soybean, cotton, groundnut, and maize disease management.
- Cabrio Top: Synergistic combination of QoI strobilurin and multisite dithiocarbamate for fruit orchards.
- Seltima: Micro-encapsulated formulation specifically engineered for paddy fields to protect aquatic ecosystems.
Application Timing and Resistance Management
For maximum disease prevention and yield protection, apply BASF fungicides at early disease onset or during critical phenological growth windows (such as flowering, pod initiation, or panicle emergence).
To safeguard single-site SDHI and QoI chemistries against resistance, limit the number of seasonal applications and alternate with multisite protectants or triazole fungicides.
- Preventive Application: Spray before fungal spore penetration establishes deep within internal leaf tissues.
- Proper Water Volume: Use calibrated hollow cone or flat fan nozzles to achieve uniform canopy coverage.
- Label Compliance: Follow official CIBRC dosage rates and harvest safety intervals specified on product packaging.
Official source
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Central Insecticides Board & Registration Committee (CIBRC) ↗Related on KisanPe
Common questions
What is BASF Xemium technology?
Xemium is BASF's proprietary active ingredient Fluxapyroxad, an advanced SDHI (FRAC Group 7) systemic fungicide with high molecular mobility.
What crops is Priaxor fungicide recommended for?
Priaxor is registered and widely used in soybean, cotton, maize, groundnut, and pulses for managing rusts, leaf spots, and blight diseases.
How does Seltima ensure safety in paddy fields?
Seltima features a specialized capsule suspension (CS) formulation that releases active pyraclostrobin on rice leaves while minimizing toxicity to aquatic organisms in paddy water.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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