Description
Active Ingredient
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Mesotrione 480 g/L (SC formulation) — a triketone herbicide used for selective weed control in maize
Type & Mode of Action
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Selective systemic herbicide, effective both pre- and post-emergence.
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Inhibits HPPD enzyme, disrupting carotenoid biosynthesis, causing bleaching and plant death in susceptible weeds
Target Weeds
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Broadleaf weeds and some grasses. Widely effective on annual and perennial weeds in maize fields
Timing & Usage
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Can be applied pre- and early post-emergence, typically around 260 mL/ha in maize
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Often part of a resistance management program, especially effective when tank-mixed with other residual herbicides (e.g., amicarbazone, as seen in combination trials)
Application Rates
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260 mL/ha typical rate for single applications.
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In combination tank-mixes, dosage may vary depending on companion herbicide rates and target weed pressure .
✔ Crop Use
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Registered mainly for maize crops, applied either broadcast or directed within maize rows
Quick Features Summary
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Active: Mesotrione 480 g/L (triketone)
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Selective systemic herbicide with both pre‑ and post‑emergence activity
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Mode of Action: HPPD inhibitor → disrupts carotenoid production → weed bleaching and death
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Targets: Broadleaf weeds and some grassy species in maize
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Dose Rate: ~260 mL/ha as standalone; tank‑mix rates vary
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Application: Pre‑emergence or early post‑emergence in maize
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Usage: Often used as part of a rotation or tank‑mix to manage resistance
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Safety: Mild crop injury at higher rates; follow label guidelines for drift control and PPE use
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