Carfentrazone-ethyl 10% WP: the quick-burn option many field crews quietly rely on

If you’ve been hunting for a Selective Herbicide For Broadleaf Weeds that acts fast without tying up your rotation, this one deserves a closer look. Carfentrazone-ethyl 10% WP (CAS 128639-02-1) is a classic PPO inhibitor—contact activity, rapid necrosis, flexible tank-mixes. I’ve seen it used from wheat country to golf fairways, and—surprisingly—also in specialty orchards as a tight-spot burn-down.

The product here—Carfentrazone-ethyl 10%WP, ICAMA support—ships out of No.1810 Tower B, Jinyuan Building, 152 Huai'an Road, Yuhua District, Shijiazhuang, Hebei, China. The manufacturer leans on CIPAC/FAO testing norms, which, to be honest, is what procurement teams want to see in 2025 when compliance is under the microscope.

Where it shines

• Post-emergence knockdown of annual broadleaf weeds in cereals, rice, sugarcane, turf, and non-crop areas.
• Burndown prior to planting with glyphosate or 2,4-D; spot treatments around tree rows (observe label buffers).
• Resistance management partner (HRAC Group 14) in rotations dominated by ALS and EPSPS chemistry.

Product specifications (10% WP)

Process flow (manufacture and QC)

Materials: technical carfentrazone-ethyl (≥95%), inert carriers (kaolin/clay), wetting and dispersing agents. Methods: precision milling (target D90 ≈ 5–10 μm), homogeneous blending, controlled moisture, sieve to spec. Testing: CIPAC MT 15/59 (particle/sieve), MT 184 (suspensibility), MT 46 (accelerated storage), content by HPLC. Service life: validated real-time and accelerated stability data guide the 2‑year claim.

Field use and rates

Typical rates: 10–30 g a.i./ha post-emergence; always follow your local label. Tank-mix friendly with glyphosate, 2,4‑D, MCPA and many residuals (jar test first). Fast burn on Amaranthus, Chenopodium, Stellaria; grasses unaffected—this is a Selective Herbicide For Broadleaf Weeds, after all.

Efficacy snapshot (indicative, n≈3 trials)

• Redroot pigweed control: 92% @ 14 DAT (20 g a.i./ha, 2–4 leaf stage)
• Lambsquarters: 88% @ 14 DAT; chickweed: 85% @ 10 DAT
• Visible necrosis often within 24–48 hours in warm, bright conditions

Why buyers pick it

• Speed: scorch symptoms fast; scheduling becomes easier.
• Low use rate: logistics and residues are simpler.
• Rotation-friendly: minimal carryover; good mix partner.

Vendor comparison (abridged)

Customization and dossiers

Beyond 10% WP, buyers sometimes request alternative packs and country-specific labels; tech packs typically include 5‑batch analysis, TDS, MSDS, CoA, and stability data. In some markets, teams ask for GLP residue and eco-tox summaries to streamline reviews.

Mini case notes

• Winter wheat, North China Plain: 15 g a.i./ha + 2,4‑D reduced chickweed escapes by ≈80% vs solo 2,4‑D.
• Municipal turf: spot‑spray protocol cut re‑treats by one pass per month in spring shoulder season.

Safety and stewardship: wear PPE, avoid drift, follow national labels. As a Selective Herbicide For Broadleaf Weeds, it should be part of a rotation with diverse MOAs to slow resistance.

References

1. US EPA. Carfentrazone-ethyl facts and risk assessments.
2. FAO/WHO. Manual on development and use of FAO and WHO specifications for pesticides.
3. CIPAC Handbook: MT 46, MT 59, MT 184—test methods for WP formulations.
4. HRAC. Mode of Action Classification (Group 14, PPO inhibitors).
5. Weed Technology journal articles on carfentrazone-ethyl efficacy and selectivity.