Weedor by CRYSTAL (2, 4-D Dimethyl Amine Salt 58% SL)
Herbicide · Detailed usage and dosage information for different crops
Highly toxic — yellow label triangle (Poison)
Weedor dosage by crop
Pre-harvest interval (PHI): Infinity–-Infinity days depending on crop. Do not harvest before the waiting period is complete.
| Crop | Pest / disease | Method | a.i. per ha | Formulation per ha | Water (L/ha) | Waiting period (days) |
|---|---|---|---|---|---|---|
| Maize | Amaranthus Spinosus · Weeds | Spray | 0.5 kg | 0.86 | 400-500 | 50-60 |
| Maize | Boerhaavia Diffusa · Weeds | Spray | 0.5 kg | 0.86 | 400-500 | 50-60 |
| Maize | Euphorbia Hirta · Weeds | Spray | 0.5 kg | 0.86 | 400-500 | 50-60 |
| Maize | Portulaca Oleracea · Weeds | Spray | 0.5 kg | 0.86 | 400-500 | 50-60 |
| Maize | Trianthema Monogyna · Weeds | Spray | 0.5 kg | 0.86 | 400-500 | 50-60 |
| Maize | Tribulus Terrestris · Weeds | Spray | 0.5 kg | 0.86 | 400-500 | 50-60 |
| Non Crop Land | Cyperus Compestris Rotundus · Weeds | Spray | 2.5 kg | 4.3 | 300-400 | - |
| Potato | Anagallis arvensis · Weeds | Spray | 2.0 kg | 3.44 | 400 | - |
| Potato | Asphodelus Tenuifolius · Weeds | Spray | 2.0 kg | 3.44 | 400 | - |
| Potato | Chenopodium Spp · Weeds | Spray | 2.0 kg | 3.44 | 400 | - |
| Potato | Convolvulus Arvensis · Weeds | Spray | 2.0 kg | 3.44 | 400 | - |
| Potato | Cyperus Compestris Iria · Weeds | Spray | 2.0 kg | 3.44 | 400 | - |
Read the label. Doses above are the registered label claims (Central Insecticides Board & Registration Committee) for information only. Always follow the product label and your local agriculture officer's advice, wear protective equipment, and observe the waiting period before harvest. Found an error? Report it. See our terms of use.
Product Label & Registration
Weedor by CRYSTAL is registered under India's Insecticides Act 1968. The product label specifies the exact active ingredient concentration (2, 4-D Dimethyl Amine Salt 58% SL), approved crops, application method, safety precautions, and the pre-harvest waiting period.
Always purchase from a licensed dealer and verify the registration on the official CIB&RC database before use.
Other 2, 4-D Dimethyl Amine Salt 58% SL brand products in India
All products below contain 2, 4-D Dimethyl Amine Salt 58% SL as the active ingredient and carry CIB&RC registered label claims.
- ★ This product
WeedorCRYSTAL 
Weedcel SuperSUMITOMO
Weedmar SuperDHANUKA
WeednashGodrej
Weedstar AmineSWAL
Agri Input Dealers
Find licensed seed, fertilizer and pesticide dealers near you.
Weather & Crop Advisories
District-level agromet advisories combining IMD 5-day weather forecasts with crop-specific pest, disease and irrigation recommendations.
Government Schemes for Farmers
Subsidies, crop insurance, loans and input support — check eligibility and apply online.
Agri Finance & Credit
Loans, crop insurance and investment norms — NABARD unit costs, PMFBY rates and KCC interest.
Source: Central Insecticides Board & Registration Committee (CIB&RC), India - official registered label data · View source →. Updated: updated annually or when label claims change · Report an error
Frequently Asked Questions
What crops is Weedor registered for?
Weedor (2, 4-D Dimethyl Amine Salt 58% SL) is registered for use in Maize, Non Crop Land, Potato as per CIB&RC label claims.
What is the dosage of Weedor?
Dosage of Weedor varies by crop and pest. Always follow the CIB&RC registered label dose for each crop.
Is Weedor safe to use near water bodies?
Always follow the Weedor label instructions regarding buffer zones near water bodies, drainage channels, or ponds. Do not spray during windy conditions or when rain is forecast within 4 hours. Dispose of empty containers as directed on the label — never near water sources.
Where can I buy Weedor by CRYSTAL in India?
Weedor is available from licensed pesticide dealers across India. Use the NaPanta app to find verified dealers near you who stock CRYSTAL products. Always purchase pesticides from licensed dealers and insist on a bill to ensure authenticity.
What precautions should I take when using Weedor?
Wear personal protective equipment (PPE) — gloves, mask, eye protection, and full-sleeved clothing — when mixing and applying Weedor. Do not eat, drink, or smoke during application. Wash thoroughly after use. Keep children and animals away from the treated area until the spray dries. Observe the pre-harvest waiting period listed on the label.