About Sencor Herbicide
Sencor herbicide is a selective, acts as both pre-emergence and post-emergence herbicide containing Metribuzin 70% WP as its active ingredient. It is used for effective control of broadleaf weeds, grasses, and sedges in crops such as sugarcane, potato, tomato, soybean, and wheat by reducing weed competition for water, nutrients, and sunlight.
Sencor Technical Name
Metribuzin 70% WP
Product Specifications
Mode of Entry: Dual Action (Root and Foliar Absorption)
Time of Application: Pre-emergence and early post-emergence
Mode of Action: Metribuzin belongs to the triazinone group of herbicides. It inhibits photosynthesis in susceptible weeds by disrupting energy production. The herbicide is absorbed through roots and foliage, resulting in weed growth suppression and eventual death.
Key Features & Benefits of Sencor Herbicide
- Controls a wide range of broadleaf weeds, annual grasses, and sedges.
- Absorbed through roots and leaves for effective weed control.
- Visible Effects
Weed growth slows soon after application.
Yellowing and weed death become visible within a few days, depending on environmental conditions.
Sencor provides residual weed control, helping protect crops from early weed competition.
Sencor Herbicide Dosage & Recommended Crops
Crop |
Target Weeds |
Dosage/Acre |
Water Volume/Acre |
Dosage/Liter Water |
Waiting Period (Days) |
Sugarcane (Pre-emergence) |
Cyperus rotundus, Cynodon dactylon, Chenopodium album, Portulaca oleracea, Echinochloa colona, Dactyloctenium aegyptium, Parthenium hysterophorus, Commelina spp. and others |
0.6–1.2 kg |
300–400 L |
2-3 g/L |
60 days |
Sugarcane (Post-emergence) |
Same as above |
0.6–0.8 kg |
280–400 L |
2- 2.1 g/L |
60 days |
Potato |
Chenopodium album, Trianthema monogyna, Parthenium hysterophorus, Fumaria parviflora, Melilotus spp., Phalaris minor |
300 g |
300–400 L |
0.75-1 g/L |
30 days |
Tomato |
Trianthema portulacastrum, Dactyloctenium aegyptium, Amaranthus viridis, Portulaca oleracea, Digera arvensis, Echinochloa colona, Commelina benghalensis and others |
300 g |
300–400 L |
0.75-1 g/L |
30 days |
Soybean |
Digitaria spp., Cyperus esculentus, Cyperus campestris, Borreria spp., Eragrostis spp. |
200–300 g |
300–400 L |
0.66 -0.75 g/L |
30 days |
Wheat (Medium Soil) |
Phalaris minor, Chenopodium album, Melilotus spp. |
100 g |
200–300 L |
0.33 -0.5 g/L |
120 days |
Wheat (Heavy Soil) |
Phalaris minor, Chenopodium album, Melilotus spp. |
120 g |
200–300 L |
0.4-0.6 g/L |
120 days |
Method of Application
Apply Sencor as a uniform ground spray using a knapsack sprayer or foot operated sprayer fitted with a flat fan or flood-jet nozzle. Ensure even coverage of the target area.
Best Time to Spray
Sugarcane (Pre-emergence)
- Apply after the first irrigation when soil moisture is adequate.
- Apply 3–5 days after planting.
Sugarcane (Post-emergence)
- Apply 25–30 days after planting.
- Potato: Apply 3–4 days after planting or before crop emergence.
- Tomato: Apply one week before transplanting or 15 days after transplanting.
- Soybean: Apply 1–2 days after sowing.
- Wheat: Apply around 35 days after sowing (when weeds are 2-3 leaf stage and crop is 3-5 leaf stage)
Precautions for use in wheat:
- Avoid use in sandy soil
- Spray on clear day
- Second irrigation should be light and avoid water stagnation
- Avoid overlapping during application
- Do not mix with other herbicides
- Do not broadcast
- It should be sprayed at optimum concentration with flood jet/ flat fan nozzles.
Compatibility, Safety & Storage
Tank-Mix Compatibility
- Compatible with 2,4-D, 2,4-DP, Diuron (Only in sugarcane)
- Avoid mixing with insecticides, urea, or plant growth regulators
Safety Precautions
- Wear protective clothing, gloves, mask, and eye protection during application.
- Avoid spraying during windy conditions.
- Do not eat, drink, or smoke while handling the product.
- Wash hands, face, and exposed skin thoroughly after spraying.
- Keep out of reach of children, pets, and livestock.
- Avoid contact with eyes, skin, and clothing.
- Seek medical attention immediately in case of accidental ingestion, inhalation, or eye exposure.
Storage
- Store in a cool, dry, and well-ventilated place.
- Keep away from direct sunlight, food, feed, and water sources.
- Store only in the original sealed container.
Sencor Herbicide Expert Advice
“Sencor is an excellent selective herbicide used for effective control of broadleaf weeds, grasses, and sedges in crops such as sugarcane, potato, tomato, soybean and wheat.”
-BigHaat Agronomy Expert
Additional Information & Restrictions
- Apply only once, either as a pre-emergence or early post-emergence treatment.
- Ensure the field is free from clods and excessive crop residue before application.
- Avoid drift of spray on to the adjoining crops.
- Use only on crops listed on the product label.
- No specific antidote is available; treatment should be symptomatic.
Disclaimer: This information is provided for reference purposes only. Always read and follow the instructions provided on the product label and accompanying leaflet before use.
