About Roundup Herbicide
Roundup herbicide is a non-selective, systemic herbicide containing Glyphosate 41% SL as its active ingredient. It is used to control grassy weeds, broadleaf weeds, sedges and many annual and perennial weeds in tea plantations, non-cropped areas, and rice fields.
Roundup Technical Name
Glyphosate 41% SL
Product Specifications
Mode of Entry: Systemic
Time of Application: Post-emergence/pre-plant in rice
Mode of Action: Roundup inhibits the EPSP synthase enzyme required for amino acid synthesis in weeds. After spraying, herbicide moves from the leaves to the roots and stops weed growth. The weeds gradually turn yellow, dry, and die completely after a few days.
Key Features & Benefits of Roundup Herbicide
- Controls weed completely, including roots.
- Suitable for weed control in non-cropped areas.
- Works best on actively growing weeds.
- Useful for land preparation before rice planting.
- Should not be sprayed on standing rice crop.
- Very low in toxicity
Roundup Dosage & Recommended Crops
Crop |
Target Weeds |
Dosage/Acre |
Water Volume/Acre |
Dosage/Liter Water |
Waiting Period (Days) |
Tea |
Axonopus compressus, Cynodon dactylon, Imperata cylindrica, Polygonum perfoliatum, Paspalum scrobiculatum, Arundinella bengalensis, Kalm grass |
800 ml–1.2 L/acre |
Approx. 180 L water |
4.4 - 6.6 ml/L |
21 days |
Non-Cropped Area |
Sorghum halepense, dicot and monocot weeds, general weeds |
800 ml–1.2 L/acre |
Approx. 200 L water |
4.4 - 6.6 ml/L |
NA |
Rice Pre-Plant Application |
Echinochloa spp., Cyperus iria, Eclipta alba, Marsilea quadrifoliata |
400 ml–1 L/acre |
160–200 L water |
2.5 - 5 ml/L |
NA |
Method of Application
Spray Roundup directly on weeds when they are young and actively growing. Use a knapsack sprayer fitted with a flat fan or flood-jet nozzle for proper coverage.
Best Time to Spray Roundup
- Spray when weeds are young and actively growing.
- In rice, apply only before planting (atleast 3 days before)
- Avoid spraying during windy or rainy weather conditions.
Compatibility, Safety & Storage
Tank-Mix Compatibility
Do not mix Roundup with other chemicals unless recommended on the product label. Improper mixing may reduce herbicide performance or damage crops.
Safety Precautions
- Wear gloves, a mask, and protective clothing during spraying.
- Avoid spraying during windy conditions.
- Do not eat, drink, or smoke during application.
- Wash hands and face thoroughly after spraying.
- Keep Roundup away from children and animals.
- Do not reuse empty containers.
- Dispose of containers safely according to local regulations.
- Roundup may damage crops if sprayed directly on them. Spray only on target weeds and avoid contact with crop foliage.
Symptoms of Poisoning:
Headache, Dizziness, Nausea, Convulsions
First Aid
- In case of ingestion, seek medical attention immediately.
- Wash exposed skin thoroughly with water.
- Rinse eyes immediately with clean water if exposed.
- Consult a doctor if symptoms persist.
Storage
Store Roundup in a dry place away from food, water, and animals. Keep the product in the original container under safe storage conditions.
Roundup Expert Advice
“Bayer Roundup is an excellent non-selective, broad-spectrum herbicide used to control weeds in tea plantations, non-cropped areas, and rice fields and also effective on hard to kill weeds.”-Bighaat Agronomy Expert
Additional Information & State Restrictions
- Roundup is approved for weed control in non-cropped areas.
- Avoid entering sprayed fields for at least 24 hours after application.
- In rice fields, it should only be used before planting and not on standing rice crops.
- Avoid drift hazards to the adjoining crop field.
- Not to be used for any purpose other than those subscribed on the label /leaflet
Disclaimer: This information is provided for reference purposes only. Always follow the instructions mentioned on the product label and accompanying leaflet.
