Classification:
Herbicide
Formulation:
Diquat dibromide 150g/L SL (Soluble Liquid)
CAS NO:
85-00-7
USAGE:
Fast-acting non-selective herbicide for pre-harvest crop desiccation (potatoes,
cereals, legumes), aquatic weed control, and post-emergence weed management in
non-crop areas. Effective against broadleaf and grassy weeds including water
hyacinth, duckweed, and terrestrial annual weeds.
Pack size:
1L, 5L, 10L, 20L/drum, or as required
Application | Target Weeds | Dosage (150g/L SL) | Application Timing | Remarks |
---|---|---|---|---|
Potato desiccation | Vines & foliage | 2-3 L/ha | 7-10 days pre-harvest | 1) REI: 24 hrs 2) Apply at 70% natural vine death |
Cereal desiccation | Green tissue | 1.5-2 L/ha | Grain moisture ≤30% | PHI: 7 days for grazing |
Aquatic weeds | Floating weeds | 4-8 L/ha water surface | Active growth stage | Do not use in potable water |
Industrial sites | Annual weeds | 3-5 L/ha | Weeds <15 cm height | Add surfactant (0.1-0.5% ) |
Orchard floor | Emergent weeds | 2-4 L/ha | Before weed flowering | Shield spray from trees |
Mode of Action:
-Rapid contact action (photosystem I electron diverter)
-Generates reactive oxygen species
-Causes membrane disruption and rapid desiccation
-Limited translocation (contact activity only)
Benefits:
-Visible results within hours
-Rainfast within 30 minutes
-No soil activity (inactivated on contact)
-Useful for resistance management programs
Precautions:
-PPE: Full coveralls, face shield, chemical-resistant gloves
-Extremely toxic if swallowed (LD50 = 230 mg/kg)
-Do not apply near water bodies without proper authorization
-Storage: Keep in original container at 0°C to 35°C
-Incompatible with alkaline solutions
Environmental Hazards:
-Highly toxic to aquatic life (LC50 0.036 mg/L for fish)
-Do not apply when wind may cause drift to water
-Moderately toxic to bees (avoid flowering crops)
-Rapidly deactivated in soil (half-life <48 hrs)