HPM Penpyr 32 Herbicide (Pendimethalin 30% + Imazethapyr 2% EC)
The ultimate dual-action weed specialist for healthy, high-yielding Soybean crops.
HPM Penpyr 32 is a premium pre-mix herbicide designed to solve the toughest weed challenges in Indian agriculture. By combining two powerful active ingredients, it offers a "complete solution" that stops weeds before they start.
Penpyr 32 eliminates the need for mixing multiple chemicals manually. It provides a protective shield over your soil, controlling grasses, broadleaf weeds, and sedges in a single spray. This ensures your Soybean crop gets 100% of the soil nutrients without fighting for space.
Why Choose This Product? Key Benefits
-
⏱️
Early Control: Applied within 0-3 days of sowing (Pre-Emergence) to kill weeds before they germinate.
-
🛡️
Double Protection: Two active ingredients work together to prevent weed resistance and ensure a cleaner field.
-
⏳
Long-Lasting Barrier: Creates a chemical layer in the soil that provides residual control for weeks.
-
🌧️
Total Clean Sweep: Effective against a broad spectrum of pests including annual grasses, broadleaves, and tough sedges (Motha).
-
🌿
Crop Safety: Specifically formulated for the Soybean ecosystem to maximize yield without harming the crop.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Penpyr 32 |
| Technical Name | Pendimethalin 30% + Imazethapyr 2% EC |
| IRAC MoA Code | K1 (Microtubule Assembly) + B (ALS Inhibitor) |
| Chemical Group | Dinitroaniline + Imidazolinone |
| Formulation | Emulsifiable Concentrate (EC) |
| Toxicity Label | Check Product Label (Toxic to Aquatic Life) |
How It Works: Mode of Action
Penpyr 32 uses a synergistic "Dual Attack" strategy to ensure no weed survives:
- The Residual Barrier (Pendimethalin): It stays in the top layer of the soil and stops weed seeds from dividing cells (mitosis). This creates a "minefield" that kills weeds the moment they try to sprout.
- The Systemic Killer (Imazethapyr): This component is absorbed by roots and leaves. It travels through the weed's system to block essential amino acids (ALS enzyme), starving the weed from the inside out.
- Synergistic Effect: While Pendimethalin handles grasses, Imazethapyr targets broadleaves and sedges, leaving no gaps for weeds to escape.
This combination helps delay herbicide resistance and provides superior control compared to using single chemicals alone.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Soybean | Annual Grasses (Echinochloa spp., Jungle Rice) |
| Soybean | Broadleaf Weeds (Commelina, Amaranthus, Purslane) |
| Soybean | Sedges (Cyperus spp. / Motha) |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results.
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Soybean | 1000 - 1200 ml | 200 - 240 L | ~ 5 ml | 90 |
| Groundnut (If recommended) | 1000 - 1200 ml | 200 - 240 L | ~ 5 ml | 90 |
| Note on Water | Using high water volume (200L+) is critical for creating an even soil barrier. | |||
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Spray within 0 to 3 days after sowing (DAS). This must be done before the crop or weeds emerge.
- Mixing: Ensure the soil has adequate moisture to activate the chemical. Mix thoroughly in clean water.
- Coverage: Use a Flood Jet or Flat Fan nozzle for uniform soil coverage. Do not use hollow cone nozzles (used for insecticides).
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use.
Frequently Asked Questions
1. Does Penpyr 32 kill weeds that have already grown?
It is primarily a pre-emergence herbicide. It works best before weeds appear. However, the Imazethapyr component has some "kick-back" effect on very young, newly germinated weeds.
2. Can I use this on crops other than Soybean?
This product is specifically labelled for Soybeans. Using it on other crops may cause damage due to residue sensitivity, especially for mustard or vegetables planted afterward.
3. What happens if it rains immediately after spraying?
Light rain can help activate the herbicide in the soil. However, heavy rain causing runoff might reduce efficacy or wash the chemical away.
4. What is the correct nozzle to use?
Always use a Flat Fan or Flood Jet nozzle. These create a uniform sheet of spray to cover the soil evenly, which is essential for pre-emergence herbicides.
5. Is this product toxic to fish?
Yes. Due to the Pendimethalin content, it is toxic to aquatic life. Do not use near fish ponds or aquaculture setups.
Safety & Disclaimer
Always read and follow the instructions on the official product label. The information provided here is for guidance only. Use personal protective equipment (PPE) during application.
