Flagship Herbicide Chemistries and Target Weeds
Corteva herbicides incorporate advanced modes of action engineered for crop safety and high weed control efficacy.
From post-emergence broadleaf control in transplanted rice to selective grass killers in direct-seeded rice, these formulations prevent weed competition during critical yield formation stages.
- Rinskor Active (Florpyrauxifen-benzyl): Novel synthetic auxin (HRAC Group 4) controlling barnyard grass, broadleaf weeds, and sedges in rice
- Clincher (Cyhalofop-butyl): Highly selective graminicide targeting Echinochloa species without damaging rice shoots
- Tarzec & Vivaya: Engineered for maize and soybean fields to curb mixed weed flushes early in the season
Optimal Timing and Field Application
Herbicidal efficacy depends critically on application timing relative to weed leaf stage.
Applying when weeds have 2 to 4 leaves ensures maximum foliar uptake while conserving herbicide volume and avoiding unnecessary plant stress.
- Weed Stage: Spray when target weeds have 2 to 4 active leaves for complete systemic absorption
- Water Management: In paddy fields, drain standing water 24 hours before spraying and re-flood 48 hours post-application
- Nozzle Selection: Use flat fan or floodjet nozzles at low operating pressure to create uniform, drift-free spray swathes
Resistance Stewardship and Crop Rotation
Continuous reliance on a single herbicide mechanism can foster resistant biotypes of weeds like Echinochloa or Leptochloa.
Integrating cultural weed practices—such as crop rotation, stale seedbed preparation, and mechanical cultivation—ensures long-term weed management efficacy.
- Mechanism Rotation: Alternate between auxin mimics, ACCase inhibitors, and ALS inhibitors across cropping cycles
- Adjuvants: Use manufacturer-recommended surfactant adjuvants where specified for maximum cuticle penetration
- Label Adherence: Follow statutory CIBRC instructions regarding crop growth stages and pre-harvest intervals
Official source
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Central Insecticides Board & Registration Committee ↗Related on KisanPe
Common questions
What is Rinskor active in Corteva herbicides?
Rinskor active (florpyrauxifen-benzyl) is a modern arylpicolinate auxin herbicide providing broad-spectrum weed control in rice.
Is Clincher herbicide safe for direct-seeded rice (DSR)?
Yes, cyhalofop-butyl (Clincher) is highly selective to rice plants while targeting barnyard grass and other graminaceous weeds.
Can Corteva herbicides be tank-mixed with insecticides?
Certain herbicides are compatible with specific insecticides, but check the product label or perform a jar compatibility test first.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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