Dhanuka Oxykill is a selective contact herbicide containing Oxyfluorfen 23.5% EC. It belongs to the diphenyl ether group and provides pre-emergence and targeted post-emergence activity against label-listed broadleaf weeds, grasses and sedges.
When applied as a pre-emergence treatment, Oxykill forms a herbicidal layer on the soil surface and acts on susceptible weeds as they emerge. During targeted post-emergence use, it damages young weed tissue contacted by the spray.
Oxykill is recommended for direct-sown rice, tea, onion and mentha at crop-specific doses. Selectivity depends on using the correct dose, application stage, spray method and water volume; incorrect application can injure the crop.
| Specification | Details |
|---|---|
| Product Name | Dhanuka Oxykill |
| Brand | Dhanuka Agritech Limited |
| Technical Name | Oxyfluorfen 23.5% EC |
| Active Ingredient | Oxyfluorfen 23.5% w/w |
| Formulation | EC – Emulsifiable Concentrate |
| Product Category | Selective herbicide |
| Chemical Group | Diphenyl ether |
| Mode of Action | Contact PPO-inhibiting herbicide |
| Application Type | Pre-emergence and targeted post-emergence, depending on the crop label |
| Recommended Crops | Direct-sown rice, tea, onion and mentha |
| Pack Sizes | 50 ml, 100 ml, 250 ml and 500 ml |
Oxyfluorfen inhibits protoporphyrinogen oxidase, commonly referred to as the PPO enzyme. This causes photodynamic compounds to accumulate in susceptible weed tissue.
In the presence of light, these compounds generate reactive oxygen species that damage cell membranes. The affected weed tissue develops rapid injury, desiccation and eventual death.
Sunlight is important for post-emergence activity. Since Oxykill acts mainly through contact, uniform application and correct placement are essential for satisfactory weed control.
| Crop | Target Weeds | Dose per Acre | Water per Acre |
|---|---|---|---|
| Direct-Sown Rice | Echinochloa species, Cyperus iria and Eclipta alba | 260–400 ml | 200 litres |
| Tea | Digitaria, Imperata, Paspalum and Borreria hispida | 260–400 ml | 200–300 litres |
| Onion | Chenopodium album and Amaranthus viridis | 170–340 ml | 200–300 litres |
| Mentha | Echinochloa colona, Cyperus species, Solanum nigrum, Amaranthus viridis, Sphenoclea species, Anagallis arvensis, Chenopodium album, Commelina benghalensis, Digitaria sanguinalis, Eclipta alba, Euphorbia species and Ludwigia parviflora | 362 ml | 200 litres |
Dose caution: Select the dose within the registered range according to the current Oxykill label, weed spectrum, soil condition and locally approved recommendation. Do not estimate the dose solely from pack size.
| Crop | Application Guidance |
|---|---|
| Direct-Sown Rice | Apply as a pre-emergence treatment according to the current label |
| Tea | Use only as a carefully directed treatment according to label instructions |
| Onion | Apply at the crop and weed stage specified on the current label |
| Mentha | Apply uniformly at the label-approved stage using 362 ml per acre |
Timing note: Except for direct-sown rice, which Dhanuka specifically identifies as a pre-emergence use, confirm the exact crop stage and application timing for tea, onion and mentha from the current pack leaflet.
Per-pump quantities depend on the selected crop dose and total water volume. First divide the total dose uniformly across the number of tanks required for one acre.
| Crop Recommendation | Approximate Concentration | Approximate Quantity for 15 L Water |
|---|---|---|
| 260 ml in 200 L | 1.3 ml/L | 19.5 ml |
| 400 ml in 200 L | 2 ml/L | 30 ml |
| 260 ml in 300 L | 0.87 ml/L | 13 ml |
| 400 ml in 300 L | 1.33 ml/L | 20 ml |
| 170 ml in 200 L | 0.85 ml/L | 12.75 ml |
| 340 ml in 200 L | 1.7 ml/L | 25.5 ml |
| 170 ml in 300 L | 0.57 ml/L | 8.5 ml |
| 340 ml in 300 L | 1.13 ml/L | 17 ml |
| 362 ml in 200 L | 1.81 ml/L | 27.15 ml |
Calculation warning: These are mathematical dilution examples, not independent recommendations. The full registered dose must be distributed uniformly over exactly one acre using the complete specified water volume.
Dhanuka’s website mentions weed control in landscapes, patios, driveways and similar residential areas. However, use in any non-crop area should be undertaken only when it is explicitly permitted by the current pack label and applicable local regulations.
Do not apply near drinking-water sources, edible garden plants, children’s play areas, animal enclosures or surfaces where runoff can enter drains or ponds.
Repeated use of the same herbicide mode of action can select resistant weed populations. Rotate Oxykill with registered herbicides having a different mode of action and combine chemical treatment with cultural and mechanical weed control.
Do not use a reduced dose on difficult weeds, and investigate patches that survive a correctly applied treatment instead of immediately repeating the same herbicide.
Mix Oxykill with another herbicide, pesticide or fertilizer only when the labels of all products permit the combination. Conduct a jar test before preparing an unfamiliar mixture and obtain crop-specific agricultural advice.
Oxykill contains Oxyfluorfen 23.5% EC.
It is a selective contact herbicide when used on registered crops at the correct dose, stage and application method.
It provides pre-emergence activity and also has targeted post-emergence activity where permitted by the crop label. Direct-sown rice is specifically listed for pre-emergence use.
Apply 260–400 ml per acre in 200 litres of water according to the current label.
The listed dose is 170–340 ml per acre in 200–300 litres of water.
Apply 260–400 ml per acre in 200–300 litres of water according to label guidance.
The listed recommendation is 362 ml per acre in 200 litres of water.
Oxykill is labelled against Cyperus iria in direct-sown rice and Cyperus species in mentha. Control of established perennial Cyperus rotundus may be incomplete because underground tubers can produce new shoots.
No. Potato and groundnut were removed from Dhanuka’s current Oxyfluorfen 23.5% EC label claim and should not be recommended.
No herbicide can guarantee zero injury under every condition. Crop safety depends on correct dose, crop stage, soil condition, spray calibration and avoidance of overlapping application.
Prepare a tank mixture only when both product labels permit it. Conduct a jar test and obtain crop-specific expert advice before mixing.
Disclaimer: The information provided is for general guidance only. Always adhere to the registered crops, weeds, dose, water volume, application timing, protective equipment and safety instructions stated on the current product label and accompanying leaflet.
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