Pinoxaden Herbicide | Selective Post-Emergence Grass Control

Technical Specifications

• Active Ingredient: Pinoxaden (CAS No. 243997-59-5)
• Molecular Formula: C₂₆H₂₇N₃O₄
• Mode of Action: Inhibits ACCase, blocking fatty acid synthesis in grassy weeds.
• Formulations:
  • 2% EC (Emulsifiable Concentrate)
  • 10% OD (Oil Dispersion)
  • 7.5% + Methyl iodide blend (custom formulations)
• Target Crops: Wheat, barley, oats, triticale (not for use in corn or soybeans).
• Target Weeds:
  • Annual Grasses: Wild oats, ryegrass, foxtail, barnyardgrass.
  • Perennial Grasses: Quackgrass, johnsongrass (with repeated applications).

Mode of Action

1. Systemic Translocation: Absorbed by weed leaves and stems, moving to meristematic tissues (growing points).
2. ACCase Inhibition: Blocks ACCase, an enzyme critical for fatty acid biosynthesis.
3. Lipid Depletion: Reduced lipid synthesis weakens cell membranes, leading to chlorosis, stunting, and necrosis.
4. Speed of Action: Visible symptoms (yellowing, growth arrest) in 5–7 days; complete death in 14–21 days.

Application Guide

Application Tips:

• Mixing: Dilute in 200–300 L water/ha; add non-ionic surfactant for optimal absorption.
• Timing: Apply in cool (10–20°C) conditions; avoid spraying during drought or heat stress.
• Crop Safety: Safe for cereals when used at recommended rates; avoid overlap with brassica or legume crops.

Key Advantages

1. Selective Efficacy: Controls 20+ grassy weeds while sparing broadleaf crops and cereals.
2. Low Dosage: 10–35 g a.i./ha, reducing chemical input costs.
3. Cool-Temperature Activity: Performs well in early spring or fall when other herbicides are less effective.
4. Tank Mix Compatibility:
   • Common Mixes: Methyl iodide, tribenuron-methyl (broadens spectrum to include broadleaf weeds).
   • Synergy: Enhances control of resistant weeds (e.g., ACCase-resistant ryegrass).

Safety & Environmental Notes

• Toxicity: Low mammalian toxicity (LD₅₀ > 2000 mg/kg); moderate toxicity to aquatic life.
• Environmental Impact:
  • Low volatility; minimal risk to non-target plants.
  • Degrades via microbial action (half-life: 10–15 days), suitable for rotational cropping.
• Storage: Store in cool, dry place; avoid freezing or exposure to sunlight.

Resistance Management

• HRAC Group: 1 (ACCase inhibitors).
• Strategies:
  • Rotate with Group 2 (ALS inhibitors), Group 14 (PPO inhibitors), or Group 9 (glyphosate).
  • Avoid consecutive annual use on ACCase-resistant weeds (e.g., Italian ryegrass).

FAQ

1. Can Pinoxaden be used on oats?
   Yes, at 25–35 g a.i./ha in early post-emergence (weed 2–4 leaf stage).
2. How does Pinoxaden affect next-season crops?
   With a 10–15 day half-life, it is safe for most rotational crops (e.g., soybeans, canola).
3. Is Pinoxaden effective against perennial grasses?
   Yes, but may require higher rates and repeated applications for control (e.g., quackgrass).
4. Can it be mixed with broadleaf herbicides?
   Yes; tank mixing with tribenuron-methyl or 2,4-D improves control of mixed weed populations.
5. What is the pre-harvest interval (PHI)?
   PHI is 7–10 days for wheat and barley, ensuring residue compliance with food safety standards.

Packaging & OEM Services

• Standard Packaging:
  • 1L, 5L, 10L HDPE containers (EC/OD).
  • 20L drums for bulk orders.
• Custom Solutions:
  • Private labeling with multilingual artwork.
  • Regulatory support for global markets (COA, SDS, field trial data).
  • Custom formulations (e.g., Pinoxaden + methyl iodide blends).

Why Choose Pinoxaden?

• Large-scale grain producers
• No-till and conservation farming systems
• Resistance management programs
• Cool-climate agricultural regions