Mode of action and selective weed control
- Active ingredient: Quizalofop-ethyl 5% EC (emulsifiable concentrate) belonging to HRAC Group 1.
- Biochemical action: Inhibits the acetyl-CoA carboxylase (ACCase) enzyme in monocotyledonous grasses, preventing lipid and cell membrane synthesis.
- Selective safety: Broadleaf crops possess an insensitive ACCase enzyme variant, allowing them to tolerate the chemical without any crop injury.
- Systemic movement: Absorbed rapidly through weed foliage and translocates systemically to growing nodes and rhizomes within hours.
Target grass weed spectrum and approved crops
- Target grass weeds: Barnyard grass (Echinochloa colona), goosegrass (Eleusine indica), crabgrass (Digitaria sanguinalis), and wild sorghum.
- Approved broadleaf crops: Soybean, cotton, groundnut, black gram (urad), green gram (moong), and onion.
- Symptom progression: Treated grasses show yellowing of growing tips within 4 to 7 days, followed by leaf reddening and complete collapse in 10 to 14 days.
Application timing and field conditions
Apply when target grass weeds are actively growing at the 2 to 4 leaf stage. Do not spray during drought stress when weeds are wilted, as moisture is essential for systemic translocation. Avoid mixing with broadleaf herbicides without checking compatibility, follow CIB&RC label dosages, and observe the statutory pre-harvest interval (PHI).
Official source
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Central Insecticides Board & Registration Committee (CIB&RC) ↗Related on KisanPe
Common questions
What is the active ingredient in Targa Super herbicide?
Targa Super contains Quizalofop-ethyl at 5% EC (emulsifiable concentrate).
Does Targa Super control broadleaf weeds?
No, Targa Super specifically controls narrow-leaf grass weeds; it has no activity on broadleaf weeds or sedges.
When is the best time to apply Targa Super in soybean or groundnut?
Apply post-emergence when grass weeds are actively growing at the 2 to 4 leaf stage, typically 15 to 25 days after crop sowing in moist soil.
General guidance, not personal advice. For your farm, ask your local Krishi Vigyan Kendra or agriculture officer.
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