Dichloroquinolinic acid 25% suspension
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dichloroquinolinic acid
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Description
Dichloroquinolinic acid 25% suspension
Quinclorac 25% SC
CAS number: 84087-01-4 | Chemical Name: 3,7-Dichloro-8-quinolinecarboxylic acid
I. Product Profile
Dichloroquinoline Acid 25% Suspension Concentrate is aSelective Herbicide for Rice Fields Containing Hormones, which belongs to the quinoline carboxylic acid class of herbicides. This product is effective against barnyard grassSpecial EffectsIt provides excellent control of barnyard grass from the 1- to 7-leaf stage and has a wide application window; a single application can control barnyard grass throughout the entire rice growing season. The suspension concentrate formulation features good dispersibility, strong adhesion, and resistance to rain wash-off, ensuring more stable efficacy; it is the preferred product for barnyard grass control in rice fields.
II. Mechanisms of action of active ingredients
Target: Synthetic hormone inhibitor
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| active link | Specific mechanisms |
|---|---|
| absorption pathway | It is rapidly absorbed by the seeds, roots, and leaves of emerging weeds, so thatPrimarily absorbed through the roots |
| Conduction Pathways | After absorption, within the plantConduction to the canopy and stems |
| biochemical target | Synthetic hormone inhibitors, interfering with auxin metabolism and signaling |
| physiological effect | It works primarily by inhibiting the growth points of barnyard grass, thereby disrupting cell division and elongation. |
| final performance | The leaves of barnyard grass droop and wilt, eventually leading to the plant’s death; they generally begin to turn yellow and die 3 days after application of the pesticide. |
selectivity principle (physics)
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Rice has a natural resistance to dichloroquinoline acid, and the pesticide is rapidly metabolized and broken down within the plant.
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Barnyard grass is highly sensitive to dichloroquinoline acid; accumulation of the herbicide leads to necrosis of the growing point.
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Highly selective, with a wide application window; a single application can control barnyard grass throughout the entire rice growing season.
III. Product characteristics
✅ Six Core Advantages
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| Specificities | particular |
|---|---|
| 🎯 Weed-specific effects: specialized for both attack and defense | It is highly effective against barnyard grass (Oryza sativa) and common barnyard grass in the 1–7-leaf stage and is the first choice for controlling barnyard grass in rice fields. |
| 🔄 Systemic action, thoroughly eradicates | After absorption by the roots, the active ingredient is transported to the shoot, where it destroys the barnyard grass at the growing point, preventing regrowth. |
| ⏱️ Wide application window, high tolerance for errors | This product can be applied at any stage from 1 to 7 leaves on barnyard grass, with the 2- to 3-leaf stage being optimal; the application window is broad. |
| 🛡️ Safe for rice; does not affect tillering | Safe for rice; does not affect tillering (commonly known as ”side shoots”) |
| 💧 Suspension formulation for enhanced efficacy | The SC formulation offers good dispersibility, strong adhesion, resistance to rain wash-off, and more stable efficacy. |
| 🌾 Long-lasting effectiveness—one application lasts the entire season | With a residual effect lasting more than 50 days, a single application controls barnyard grass throughout the entire rice growing season. |
🎯 Preventing Objects
Primary prevention and eradication: Barnyard grass (1–7-leaf stage, highly effective), duckweed, water celery, bitter grass, water pennywort, water hyssop, rainflower, field bindweed, soapberry, etc.
Suitable crops: Rice transplanting fields, direct-seeding rice fields, and rice seedling beds.
IV. Usage and dosage
📋 Rice field use program
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| Crop type | Application period | Dosage (formulated dose/acre) | water consumption | Mode of application |
|---|---|---|---|---|
| Rice transplanting field | 7–20 days after transplanting, when barnyard grass is in the 1–7-leaf stage | 60–120 milliliters per mu | 30-40 kg/mu | Foliar spray |
| Rice direct seeding field | After the seedlings reach the 2.5-leaf stage; when barnyard grass is at the 1–7-leaf stage | 60–120 milliliters per mu | 30-40 kg/mu | Foliar spray |
| rice paddy | After the two-leaf stage; during the 1–7-leaf stage of barnyard grass | 60–120 milliliters per mu | 30-40 kg/mu | Foliar spray |
Active ingredient dosage: The active ingredient application rate for 25% dichloroquinoline acid per mu is 15–30 grams per mu. Use the upper limit of the recommended dose when barnyard grass is at an advanced growth stage, and the lower limit when it is at an early growth stage. The maximum application rate per mu (660 square meters) must not exceed 30 grams of active ingredient.
V. Guidance for use
🔧 Application Points
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| move | operational specification |
|---|---|
| 1. Determine the age of the grass | This product can be applied at any stage from 1 to 7 leaves on barnyard grass; however, the best control is achieved when applied at the 2- to 3-leaf stage. |
| 2. Drainage and Application of Pesticides | Drain the water from the field the day before applying the pesticide. |
| 3. Spray evenly | Mix 30–40 kilograms of the product per mu with water and spray evenly to ensure complete coverage of the weeds. |
| 4. Watering and Moisture Retention | Water the plants 1–2 days after application, and maintain a water depth of 3–5 centimeters for 5–7 days. |
⚠️ Key Considerations
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⏰ Optimal application period: Weeds2–3-leaf stageThis product is most effective when applied at this stage; it controls barnyard grass at the 1–7-leaf stage, but the application rate should be increased appropriately as the weeds grow older.
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🚫 Taboos in Rice Paddy Fields: It is essential to use seedbedsApply the pesticide after the two-leaf-one-heart stage, which can cause phytotoxicity if applied too early.
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🚫 Pesticide damage to subsequent crops: High residue levels in the soil can easily cause phytotoxicity in subsequent crops; subsequent crops may include rice, corn, and sorghum, butSolanaceae (tobacco, potatoes, chili peppers, etc.), Apiaceae (carrots, celery), Amaranthaceae (spinach, sugar beet), Malvaceae, Cucurbitaceae (various melons and gourds), Fabaceae, Asteraceae, and Convolvulaceae crops are sensitive to this herbicide.。
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💧 Water Management: Drain the water the day before application and apply a uniform spray. Irrigate 1–2 days after application and maintain a water depth of 3–5 centimeters for 5–7 days.
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🌡️ Drift Risk: These crops (carrots, celery, cilantro, etc.) are quite sensitive to the Umbelliferae family; spray drift can easily cause phytotoxicity to these crops in adjacent fields, so spray drift should be avoided during application.
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🐟 Aquatic safety: This product is non-toxic to fish and bees, but apply it away from aquaculture areas; do not wash application equipment in water bodies.
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🧪 Blending recommendations: can be used withChlorimuron, Benfluralin, Pyrimethanil, Diquat, Cyhalothrin...are used in combination to broaden the spectrum of weeds controlled.
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🔄 Resistance management: In some areas, dichloroquinoline acid is frequently applied in excess, leading to cumulative pesticide damage in the fields; it is recommended to combine it withPentafluorophenoxanil, CyanofluorophenoxanilRotate the use of herbicides with different modes of action, applying them no more than once per season.
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🛡️ security: Wear protective clothing, gloves, and a mask when applying the pesticide; wash your hands and face immediately after application; pregnant and breastfeeding women should avoid contact.
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📦 Storage conditions: Store in a cool, dry, well-ventilated place, away from direct sunlight and high temperatures; shake the SC formulation well before use.
Sixth, product specifications and packaging
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| sports event | parameters |
|---|---|
| Active ingredient content | Dichloroquinoline acid ≥25% |
| exterior condition | White to pale yellow suspension |
| Suspension rate | ≥90% |
| pH value | 5.0-8.0 |
| Packaging specification | 100 mL × 50 bottles per case, 200 mL × 40 bottles per case, 500 mL × 20 bottles per case, 1 L × 12 bottles per case |
| date of use (on foodstuffs) | 2 years |
Warm Tip: When applying this product, please follow the guidance of your local plant protection authorities and adjust the application plan as appropriate based on local weed communities, cultivation practices, and climatic conditions.
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