Crystal Bango Quizalofop Ethyl 10% EC Herbicide - Selective Post-Emergence Grass Killer for Soybean

Crystal Bango is a selective, systemic post-emergence herbicide from Crystal Crop Protection Ltd., formulated with Quizalofop Ethyl 10% EC (Emulsifiable Concentrate). It is specifically designed to control annual and perennial grassy weeds in broadleaf crops such as soybean, cotton, groundnut, and pulses. Bango is a highly effective grass killer that targets tough narrow-leaf weeds without harming the main crop.

The product works by being absorbed through the leaves of the weed and then moving systemically to the roots and growing points. This complete translocation ensures that the entire weed, including underground parts, is killed, preventing regrowth. With excellent rainfastness of just 4 hours, Bango is well-suited for the monsoon season, giving farmers reliable weed control even in unpredictable weather. By eliminating weed competition for water, nutrients, and sunlight, Bango helps soybean and other broadleaf crops achieve healthier growth and better yields. It offers a cost-effective and labor-saving alternative to manual weeding, especially during the Kharif season.

Key Benefits

• Effective grass control: Controls stubborn narrow-leaf weeds including love grass, crab grass, barnyard grass, viper grass, wild finger grass, and brown top millet.
• Systemic root kill: The active ingredient moves to the roots and growing points, preventing regrowth of perennial grasses like Bermuda grass (Doob).
• Rainfast in 4 hours: Reliable performance even during monsoon rains — no need to re-spray if rain occurs 4 hours after application.
• Crop-safe on broadleaf crops: Completely safe for soybean, cotton, groundnut, and pulses when used as per recommended dosage.
• Rapid action: Weeds stop growing and competing for nutrients within 24-48 hours of spraying, with complete death visible in 10-21 days.
• Labor-saving alternative: Reduces dependency on manual weeding, saving time and labor costs during the busy Kharif season.
• Better yield: Clean fields free from grass weed competition lead to healthier crop growth and improved harvests.

How It Works

Crystal Bango contains Quizalofop Ethyl 10% EC, which belongs to the Aryloxyphenoxypropionate (FOPs) chemical group and has IRAC Mode of Action Group 1 (formerly Group A). The herbicide works by inhibiting the ACCase enzyme, which is essential for lipid (fatty acid) biosynthesis in grasses.

When sprayed on the weed foliage, the specialized EC formulation quickly penetrates the waxy leaf surface of grasses. Once inside, the active ingredient moves systemically through the plant — traveling to the shoot tips (growing points) and down to the roots and rhizomes. This complete translocation ensures that the entire weed is affected, not just the sprayed leaves.

The inhibition of lipid production stops cell membrane formation in the growing points. The first visible sign is the inner leaf turning brown — a condition known as "dead heart" or "rotten heart," where the central growing point dies and can be easily pulled out. Weeds stop growing within 24-48 hours, and complete death occurs within 10-21 days after application. Broadleaf crops like soybean remain unaffected because their enzyme structure is different from that of grasses.

Technical Specifications

Recommended Dosage & Application

Note: Use high water volume (minimum 150 L per acre) to ensure thorough coverage of narrow grass leaves. Use Flat Fan or Flood Jet nozzles for uniform droplet size. Avoid cone nozzles to reduce spray drift.

When to Use

Apply Crystal Bango when weeds are young and actively growing, ideally at the 2 to 4 leaf stage. This typically falls between 15 to 25 days after sowing (DAS) of the crop. Efficacy drops significantly on older, well-established weeds, so timely application is critical for best results.

Ensure the soil has adequate moisture at the time of spraying — this helps the weeds absorb the herbicide more effectively. The product is best used during the Kharif season when grassy weed pressure is high in soybean and other broadleaf crops. Since Bango is rainfast within 4 hours, it can be applied even during the monsoon period with confidence.

Step by Step Usage Instructions

1. Check weed stage: Ensure grassy weeds are at the 2-4 leaf stage and actively growing. Do not apply on older, mature weeds.
2. Prepare the spray solution: Fill the spray tank with half the required water. Add the measured dose of Bango (150-180 ml per acre) and mix well. Add remaining water and stir thoroughly.
3. Use correct nozzles: Fit Flat Fan or Flood Jet nozzles for even coverage. Avoid cone nozzles as they increase drift.
4. Spray evenly: Apply as a foliar spray, ensuring thorough coverage of all weed foliage. Use high water volume (150-200 L per acre) for best results.
5. Check weather: Avoid spraying when rain is expected within 4 hours. If rain occurs after 4 hours, no re-spray is needed.
6. Clean equipment: After spraying, thoroughly clean all spray equipment with water. Do not dispose of wash water near water bodies.
7. Observe results: Weeds will stop growing within 24-48 hours. Complete death (yellowing, browning, dead heart) will be visible in 10-21 days.

Compatibility

Bango can generally be mixed with other pesticides. However, NEVER mix with Copper-based fungicides as they can degrade the herbicide and reduce its effectiveness. Always conduct a jar test before mixing with any new product. When tank-mixing, follow the correct mixing order: wettable powders first, then suspension concentrates, then emulsifiable concentrates like Bango, and adjuvants last.

Precautions & Safety

• Personal Protective Equipment (PPE): Always wear gloves, mask, and goggles while handling and spraying the herbicide.
• During application: Avoid inhalation of spray mist. Do not eat, drink, or smoke while spraying.
• After use: Wash hands, face, and exposed skin thoroughly with soap and water.
• Storage: Store in a cool, dry place away from food, animal feed, and children. Keep in original container with lid tightly closed.
• Environmental safety: Avoid spray drift to nearby grass crops like maize, wheat, rice, sorghum, and sugarcane — Bango will kill them. Do not contaminate water bodies.
• Disposal: Do not reuse empty containers for any purpose. Dispose of as per local regulations.

Side Effects & Phytotoxicity

Bango is a selective herbicide that is safe for broadleaf crops (soybean, cotton, groundnut, pulses) when used at the recommended dosage. However, it will kill all grass plants including crop grasses like maize, wheat, rice, sorghum, and sugarcane. Do not spray on or allow drift to these crops. Application on stressed crops (due to drought, waterlogging, or pest damage) may increase the risk of crop injury. Always follow the recommended dose — over-application may cause temporary growth suppression.