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Quizalofop Ethyl is a selective herbicide belonging to the aryloxyphenoxypropionate (AOPP) class. It is widely used for post-emergent control of annual and perennial grass weeds in a variety of broad-leaf crops. It works by inhibiting acetyl-CoA carboxylase (ACCase), an enzyme critical for fatty acid biosynthesis in plants, leading to the disruption of weed growth and development.
Quizalofop Ethyl is a selective herbicide belonging to the aryloxyphenoxypropionate (AOPP) class. It is widely used for post-emergent control of annual and perennial grass weeds in a variety of broad-leaf crops. It works by inhibiting acetyl-CoA carboxylase (ACCase), an enzyme critical for fatty acid biosynthesis in plants, leading to the disruption of weed growth and development.
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Agrochemicals
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Crop Protection & Pest Control
Herbicides
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Chemical Properties & Specifications
H302: Harmful if swallowed H315: Causes skin irritation H319: Causes serious eye irritation H400: Very toxic to aquatic life
P261: Avoid breathing dust/fume/gas/mist/vapors/spray. P280: Wear protective gloves, protective clothing, and eye/face protection. P273: Avoid release to the environment. P301 + P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
Inhalation: Move the person to fresh air and keep them comfortable. Seek medical advice if symptoms persist. Skin Contact: Wash with soap and water. Remove contaminated clothing. Seek medical attention if irritation occurs. Eye Contact: Rinse immediately with water for at least 15 minutes. Consult a doctor if irritation persists. Ingestion: Rinse mouth; do not induce vomiting. Seek immediate medical attention.
Acute toxicity, oral (Category 4) Skin irritation (Category 2) Eye irritation (Category 2A) Aquatic acute toxicity (Category 1) Storage Class Code: 6.1B - Harmful substances, not a primary fire risk
Used in controlling grass weeds in crops like soybeans, sugar beets, canola, and cotton.
Effective in managing weeds in fruits and vegetables.
Applied in plantation crops like tea, coffee, and oil palm to control invasive grasses.
Store at 20–25°C (68–77°F).
Keep in a cool, dry place away from light, moisture, and incompatible materials.
Use airtight containers to prevent contamination and degradation.
Packaged in 1 L, 5 L, and 10 L containers for field applications.
It is an ACCase inhibitor, disrupting fatty acid synthesis in grassy weeds, leading to cell membrane disintegration and plant death.
It degrades into Quizalofop acid, which is less active. The half-life in soil varies but is generally 15–60 days, depending on conditions.
It targets only monocot (grassy) weeds and does not affect dicot (broadleaf) plants.
It is widely used in soybean, cotton, groundnut, and pulses to control barnyard grass, foxtail, and wild oat.
Common formulations include 5% EC and 10% EC. Available in 1L, 5L, and 25L HDPE drums for bulk supply.
It should not be mixed with broadleaf herbicides, as they may reduce efficacy. Avoid application near water bodies due to potential aquatic toxicity.
