1、How to use Diquat!
After all weeds emerge and grow vigorously, use 300-350mL of 20% diquat solution per mu, add 25-30kg of water, and spray on the stems and leaves in a directional manner.
2、Diquat Herbicide: An Easy Guide on What It Is, How to Mix It, and How
To use the Diquat herbicide correctly and ensure you benefit from its full effectiveness, you must follow these next steps: Always start by reading the product label. You have to become aware of the product instructions, guidelines, precautions, and recommended application rates.
3、What Is Diquat?
Diquat is typically applied as a foliar spray using ground sprayers, aerial equipment, or aquatic application systems depending on the target area. Because it is a contact herbicide, effective coverage of all green tissue is critical.
Pre
According to the product label, the recommended spray volume for diquat ranges from 200 to 300 L ha⁻¹, which is suitable for ground applications. However, with the increasing use of RPAs, it is necessary to adjust these volumes by reducing them to enable coverage of larger areas.
Diquat
Diquat as a selective tool: Diquat can be a valuable tool within an IPM approach, being used strategically after other methods like cultural control have been considered. It’s most effective as a preventative measure for specific weed pressure in easily-managed situations.
Maximize Diquat Efficiency: Tips for Effective Pesticide Use
Since diquat is mainly for contact killing, when spraying diquat, it must be sprayed thoroughly and evenly. Penetrants such as organic silicon can also be added so that the surface of the weed leaves fully contacts and absorbs diquat to achieve better results.
Diquat Herbicide
Learn about the chemical herbicide diquat, used by Estate Management Services for aquatic vegetation management.
DIQUAT
Use high water volumes as directed and increase water volume with thick crop canopy. Typical symptoms include wilting, interveinal discoloration within hours of application, followed by leaf-edge blackening in some species, and complete browning of top growth.
How to Use Foliar Spray Fertilizer Effectively?
In this guide, we’ll walk you through everything—from fundamentals to field practice—to help you use foliar spray fertilizers efficiently and effectively.
How to use the herbicide Diquat?
When spraying diquat, it must be sprayed thoroughly and evenly. Penetrants such as silicone can also be added to ensure that the surface of the weed leaves is fully exposed to and absorbed by diquat, achieving a better weed control effect.
Diquat is a broad-spectrum herbicide primarily used to control gramineous weeds and certain broadleaf weeds. When applying diquat as a foliar fertilizer, it is essential to follow proper procedures and precautions to ensure crop safety and maximize fertilizer effectiveness. Below are detailed instructions:
1. Preparation
- Understand Product Characteristics: Before use, familiarize yourself with diquat’s chemical composition, mechanism of action, application scope, dosage, side effects, and safety measures. This information is typically found on the product label or manual.
- Choose the Right Timing: Select the optimal spraying time based on the crop’s growth stage and local climate. For gramineous plants, the vigorous growth phase is ideal, as weeds grow rapidly and are less resistant to the herbicide during this period.
- Prepare Tools and Equipment: Ensure all tools (e.g., sprayers, nozzles, water sources) are clean and free of contaminants. Additionally, equip yourself with protective gear (e.g., gloves, goggles,防护服) to avoid chemical exposure.
2. Diluting Diquat
- Follow Recommended Ratios: Mix diquat with water or other solvents according to the specified dosage (e.g., 1 gram of diquat per liter of water).
- Stir Thoroughly: Ensure uniform distribution by stirring the solution to prevent sedimentation or layering.
3. Spraying Methods
- Select Appropriate Techniques: Choose spraying methods based on crop type and weed characteristics. Manual sprayers work for most crops, while drones or tractor-mounted sprayers may be used for large areas or hard-to-reach weeds.
- Apply Evenly: Cover all areas, especially weed-dense regions, to avoid missed spots and residual chemicals.
- Use Optimal Volume: Adjust the spraying amount according to weed density and growth stage. Excessive use wastes resources and may harm crops.
4. Precautions
- Avoid Skin/Eye Contact: Prevent direct contact with skin or eyes. If exposure occurs, rinse immediately with plenty of water.
- Ensure Ventilation: Maintain airflow after spraying to accelerate diquat volatilization and reduce health risks.
- Adhere to Safety Protocols: Wear protective equipment, avoid confined spaces, and keep out of reach of children.
5. Post-Application Steps
- Clean the Site: Remove leftover chemicals and weed debris after spraying.
- Monitor Crop Response: Observe for abnormalities (e.g., leaf yellowing, wilting) and address issues promptly.
- Record Usage: Document spraying dates, locations, dosages, and crop reactions for future reference.
safe and effective use of diquat for foliar fertilizer spraying requires strict adherence to procedures and precautions. By following these guidelines, you can efficiently control weeds while minimizing environmental impact and ensuring crop safety.

