Weedicide
4-D Amine Salt 58% S.L.
Formulation
- Type: Soluble Liquid (SL)
- Active Ingredient (a.i.): 2,4-D Amine Salt
- Concentration: 58% w/w (≈ 480 g a.i./L)
Mode of Action
- Systemic, selective, post-emergence herbicide.
- Absorbed through leaves and roots, translocated by xylem and phloem.
- Mimics natural auxin (Indole Acetic Acid) → causes abnormal growth, epinasty, leaf curl, stem twisting → plant death.
- Selective to cereals and grasses; broadleaf weeds highly susceptible.
Applicable Crops
- Wheat
- Maize
- Sorghum
- Sugarcane
- Barley
- Rice (directed spray only)
- Non-crop areas (fallow land, roadsides, bunds, railways, etc.)
Target Pests (Weeds)
Broadleaf weeds:
- Amaranthus spp. (Pigweed)
- Chenopodium album (Bathua)
- Convolvulus arvensis (Bindweed)
- Xanthium strumarium (Cocklebur)
- Parthenium hysterophorus (Congress grass)
- Cyperus rotundus (partial suppression only)
Recommended Dose
| Wheat | 500–1000 g | 0.9–1.7 L |
| Maize | 500–750 g | 0.9–1.3 L |
| Sorghum | 500–1000 g | 0.9–1.7 L |
| Sugarcane | 1000–1500 g | 1.7–2.6 L |
| Non-crop land | 1000–1500 g | 1.7–2.6 L |
- Spray volume: 400–500 L water/ha
- Apply 20–35 DAS in cereals when weeds are young (2–4 leaf stage).
Mode of Application
- Knapsack sprayer or tractor-mounted boom sprayer.
- Apply uniformly over crop field.
- For sugarcane: directed spray between rows.
- Avoid spray drift to nearby sensitive crops (cotton, tomato, pulses, vegetables, grapes).
Advantages
- Cost-effective and widely used herbicide.
- Selective to cereals and grasses.
- Controls a wide range of annual and perennial broadleaf weeds.
- Systemic action → kills both aerial and underground parts (partially for perennials).
- Compatible with certain grassy weed herbicides for broad-spectrum weed control.