Selective Herbicide
TOPRAMEZONE 33.6% SC
Provides post-emergence control of a wide range of annual grasses and broad-leaved weeds. Specialized HPPD inhibitor that causes rapid bleaching and weed suppression, primarily for Maize.
Active: Topramezone
Formulation: 33.6% SC
Action: Post-Emergence
Product Information
Mode of Action
Topramezone inhibits the enzyme 4-hydroxyphenylpyruvate dioxygenase (HPPD), which blocks carotenoid biosynthesis. This leads to the destruction of chlorophyll by sunlight, resulting in chlorosis, bleaching, and eventual death of the weed. It is absorbed through leaves and translocated systematically.
Target Weeds
- Echinochloa spp. (Barnyard grass)
- Trianthema portulacastrum (Horse purslane)
- Brachiaria spp.
- Amaranthus spp.
- Setaria spp.
- Digitaria spp.
Recommended Dosage
| Crop | Target Weed Species | Dosage (ml/ha) | Water (L) | PHI (Days) |
|---|---|---|---|---|
| Maize | Trianthema portulacastrum, Echinochloa sp., Brachiaria sp. | 286 | 500 | 55 |
Dosage refers to ml of formulation per hectare. PHI = Pre-Harvest Interval (Waiting period in days).
Application Instructions
1. Mixing
This product is a Suspension Concentrate (SC). Shake well before use. Mix the required quantity (286 ml) in a small amount of water to make a slurry, then add to the main tank with agitation.
2. Timing of Application
Apply as a post-emergence herbicide when weeds are in the 2-5 leaf stage. Ensure complete coverage of the weed foliage. Symptoms (bleaching) typically appear within a few days of application.
Safety Precautions
Warning: Wear personal protective equipment (gloves, mask, goggles). Avoid spray drift to susceptible crops. Wash hands and equipment thoroughly after application.