Demolit Herbicide (Glufosinate Ammonium 13.5% SL)
The "Chemical Mower" for tough weeds: A broad-spectrum contact herbicide by Parijat Industries.
Demolit is a powerful, non-selective herbicide designed to control hard-to-kill grasses and broadleaf weeds in Cotton and Tea plantations. Unlike systemic weed killers that take weeks to work, Demolit acts fast as a "chemical mower," burning down weeds upon contact without permanently damaging your soil structure.
Best For: Farmers dealing with Glyphosate-resistant weeds, managing tea estates, or looking for effective inter-row weed control.
Why Choose This Product? Key Benefits
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Rapid Action: Visible results in just 2-5 days. It works faster than systemic alternatives, quickly turning weeds yellow and necrotic.
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Resistance Breaker: Excellent against weeds that have developed resistance to Glyphosate. It uses a unique mode of action (Group 10) to tackle stubborn flora.
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Safe for Soil (No Carryover): Microbes rapidly break down the chemical in the soil. There is no risk to your next crop or groundwater.
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Weather Flexible: Becomes rainfast within 6-8 hours. Ideal for use during the monsoon season when dry windows are short.
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Crop Safety: Because it is a contact herbicide with limited movement inside the plant, it is safer for inter-row spraying (provided you use a hood) as it won't travel to the crop roots.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand Name | Demolit |
| Technical Name | Glufosinate Ammonium 13.5% SL |
| IRAC MoA Code | Group 10 (Glutamine Synthetase Inhibitor) |
| Chemical Group | Phosphinic Acid |
| Formulation | Soluble Liquid (SL) |
| Toxicity Label | Blue Triangle (Moderately Toxic) |
How It Works: Mode of Action
Demolit contains a specialized adjuvant system (SLES) that helps the liquid spread flat over the leaf and penetrate waxy coatings.
- Contact & Penetration: Upon spraying, the surfactant helps the active ingredient enter the green parts of the plant.
- Enzyme Blockage: The Glufosinate molecule inhibits the enzyme Glutamine Synthetase.
- Ammonia Overload: This blockage causes toxic levels of ammonia to build up inside the plant cells, destroying cell membranes and stopping photosynthesis, leading to rapid death of the weed.
Note: It does not kill the roots of deep perennials, acting instead as a powerful "chemical mower" to suppress growth.
Target Crops & Pests
| Crop | Target Pest(s) |
|---|---|
| Cotton | Echinochloa spp., Cynodon dactylon (Bermuda Grass), Cyperus rotundus (Purple Nutsedge), Digitaria marginata, Dactylocteneum aegyptium |
| Tea | Borreria hispida, Imperata cylindrica, Digitaria sanguinalis, Commelina benghalensis, Ageratum conyzoides |
| General Use | Controls a wide range of annual grasses and broadleaf weeds in non-cropped areas. |
Dosage & Application Guide
The Golden Rule: Always follow the "Dose per Acre" for accurate results. Coverage is key—use plenty of water!
Dosage per Acre, Litre, & Pre-Harvest Interval (PHI)
| Crop | Dose (ml / Acre) | Water (L / Acre) | Dose (ml / Litre) | PHI (Days) |
|---|---|---|---|---|
| Cotton | 1000 - 1200 ml | 200 Litres | 5 - 6 ml/L | 96 |
| Tea | 1000 - 1350 ml | 150 - 200 Litres | 6 - 7 ml/L | 15 |
| Non-Crop Areas | 1200 ml | 200 Litres | 6 ml/L | - |
*PHI = Pre-Harvest Interval: The minimum number of days to wait between the last spray and harvesting.
How to Apply: Best Practices
- Timing: Apply when weeds are actively growing and in the 2-4 leaf stage. Do not spray if weeds are stressed by drought.
- Mixing: Use a Flat Fan Nozzle to ensure a uniform sheet of spray. Hollow cone nozzles cause drift and poor coverage.
- Coverage: Glufosinate is a contact killer. You must wet the weed foliage completely. High water volume is essential.
- Safety: Always wear PPE (gloves, mask, goggles). Wash hands thoroughly after use. For Cotton, use a Spray Hood to prevent drift onto the crop.
Frequently Asked Questions
1. Is Demolit the same as Glyphosate?
No. Glyphosate kills the root (systemic), whereas Demolit burns the green parts (contact). Demolit acts faster but may allow regrowth in deep-rooted perennials.
2. Does it affect the soil?
No. Demolit is "safe to soil." It degrades rapidly into harmless compounds, so it won't affect future crops or leach into groundwater.
3. Can I spray this directly over my Cotton plants?
Absolutely not. It will severely damage or kill cotton. You must use a protective hood/shield to spray only the weeds between the rows.
4. What if it rains after spraying?
Demolit needs 6-8 hours to be fully absorbed. If it rains immediately after spraying, effectiveness will be reduced.
5. Why is the water volume so high?
Since it is a contact herbicide, it only kills what it touches. High water volume ensures every leaf is soaked for maximum kill.
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. $LD_{50}$ indicates moderate toxicity; handle with care and keep away from water bodies.
