Targa Super Herbicide: Quizalofop Ethyl 5 EC Grassy Weed Care

Chemical Class and ACCase Enzyme Inhibition

Quizalofop Ethyl belongs to the aryloxyphenoxypropionate chemical family ('Fops' - HRAC Group 1 - ACCase inhibitors). It acts by inhibiting the enzyme acetyl-CoA carboxylase, which catalyzes the first committed step in de novo fatty acid biosynthesis in grasses.

Broadleaf crops possess an insensitive eukaryotic form of ACCase, making Targa Super highly selective for broadleaf crops. In susceptible grassy weeds, lipid synthesis stops, cell membrane production ceases, and growing points turn brown and die within 7 to 10 days.

• HRAC Group 1 Mode of Action: Inhibits acetyl-CoA carboxylase, terminating fatty acid production in grasses.
• High Broadleaf Selectivity: Completely safe for broadleaf crops like soybean, cotton, groundnut, and black gram.
• Rapid Systemic Movement: Rapidly absorbed through leaf cuticles and translocated acropetally and basipetally to root rhizomes.

Target Grassy Weeds in Field Crops

Aggressive annual and perennial grasses compete heavily with emerging field crops for nitrogen and soil moisture. Targa Super delivers control across problematic grass species.

Key controlled grasses include Echinochloa colona (jungle rice / sawan), Dactyloctenium aegyptium (crowfoot grass), Digitaria sanguinalis (crabgrass), Eleusine indica (goosegrass), and perennial Cynodon dactylon (doob grass).

• Barnyard Grass Control: Eliminates Echinochloa species infesting soybean and groundnut fields.
• Rhizome Suppression: Systemic translocation suppresses subterranean nodes of perennial grasses.
• Crop Yield Preservation: Relieves weed competition during early vegetative and flowering growth stages.

Application Timing and Spray Guidelines

Apply Targa Super as an early post-emergence spray when grassy weeds are actively growing at the 2 to 4 leaf stage (typically 15 to 25 days after sowing). Ensure adequate soil moisture is present during application.

Use a knapsack or tractor boom sprayer fitted with flat fan nozzles to achieve uniform foliar coverage. Avoid spraying during severe drought or when crops are under acute moisture stress.

• Optimal Weed Stage: Spray when grassy weeds are actively growing at 2 to 4 leaves.
• Soil Moisture Requirement: Adequate moisture ensures rapid weed absorption and translocation.
• Nozzle Selection: Flat fan nozzles produce even, overlapping spray fans across crop rows.

Related on KisanPe

• Crop Protection Advisory →
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• Soil Health Management →
• Pesticide calculator →
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Common questions

General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.