Oxadiazon 250g/L EC
Classification:
Herbicide
Formulation:
Oxadiazon 250g/L EC (Emulsifiable Concentrate)
CAS NO:
19666-30-9
USAGE:
Selective pre-emergence herbicide for control of annual grasses and broadleaf
weeds in rice (paddy and upland), fruit trees, ornamentals, and turf. Effective
against Echinochloa, Cyperus, Digitaria, and Amaranthus species.
Pack size:
500mL, 1L, 5L, 20L/drum, or as required
Direction for Use
| Crop | Target Weeds | Dosage (250g/L EC) | Application Timing | Remarks |
|---|---|---|---|---|
| Paddy Rice | Barnyardgrass, sedges | 1000-1500 mL/ha | 1-3 days after transplanting | 1) Maintain 3-5 cm water layer 2) REI: 48 hrs |
| Upland Rice | Annual grasses | 800-1200 mL/ha | Pre-emergence to weeds | PHI: 60 days |
| Fruit Trees | Broadleaf weeds | 500-1000 mL/ha | Dormant season application | Apply to weed-free soil |
| Turf | Crabgrass, foxtail | 600-1000 mL/ha | Early spring pre-emergence | Do not use on newly seeded turf |
| Ornamentals | Annual weeds | 500-800 mL/ha | Before weed germination | Test on sensitive varieties first |
Product Details
Mode of Action:
-Protoporphyrinogen oxidase (PPO) inhibitor
-Disrupts cell membranes
-Causes rapid desiccation of weed seedlings
-Soil-active with limited foliar activity
Benefits:
-Long residual control (8-12 weeks)
-Effective against herbicide-resistant weeds
-Compatible with most rice cultivation systems
-Low mammalian toxicity (WHO Class U)
Precautions:
-PPE: Coveralls, rubber gloves, face shield
-Do not apply to saturated soils
-Avoid application near sensitive crops
-Storage: Keep in original container at 0°C to 35°C
Environmental Hazards:
-Highly toxic to aquatic organisms
-Persistent in water (half-life 30-150 days)
-Moderate soil adsorption (Koc 1000-5000)
-Avoid drainage to water bodies