Dhanuka Roxa Herbicide (Pyroxasulfone 85% WG)

Dhanuka Roxa Herbicide (Pyroxasulfone 85% WG)

Dhanuka Roxa is an agricultural herbicide listed by Maharani Seeds & Pesticides under the Dhanuka brand. The supplied product identification specifies Pyroxasulfone 85% WG, a soil-active herbicide formulation used for controlling susceptible weeds during germination and early growth.

Pyroxasulfone 85% WG is used in wheat weed-management programmes, particularly against Phalaris minor (little seed canary grass), also known as Gulli Danda. Its early-stage action helps reduce competition between the crop and emerging weeds for nutrients, moisture and growing space.

Product Specifications

Key Features and Benefits

• Early Weed Control: Pyroxasulfone helps suppress susceptible weeds during germination and early seedling development.
• Phalaris Minor Management: The 85% WG formulation is recommended in ICAR wheat advisories for managing resistant Phalaris minor.
• Residual Soil Activity: Provides weed suppression through its activity in the treated soil layer.
• Reduced Weed Competition: Early suppression helps protect the crop from competition for soil nutrients, water and space.
• Group 15 Mode of Action: Offers a different herbicide action mechanism that can be considered in planned weed-resistance management programmes.

How Does Pyroxasulfone Work?

Pyroxasulfone belongs to HRAC Group 15. It inhibits very-long-chain fatty acid synthesis, an essential process involved in normal weed seedling development.

Susceptible germinating weeds absorb the herbicide from the treated soil. Their growth becomes disrupted, preventing normal emergence or establishment.

Pyroxasulfone works primarily against emerging weeds and should not be considered a general-purpose treatment for established weeds.

Target Weed and Crop Information

ICAR-Indian Institute of Wheat and Barley Research recommends Pyroxasulfone 85% WG for the management of multiple-herbicide-resistant Phalaris minor in wheat.

This is a technical recommendation for the active ingredient and formulation. The permitted crops and target weeds for Dhanuka Roxa must be confirmed from the registered Roxa product label.

Dosage and Application Guidance

Important: The rate above is taken from ICAR guidance for Pyroxasulfone 85% WG in wheat. It is not independently verified as the registered dosage for Dhanuka Roxa.

Follow the product-specific label for water volume, spray equipment, application timing, soil conditions and irrigation instructions. Do not use the product on unapproved crops or combine it with other herbicides without appropriate label guidance.

Frequently Asked Questions

1. What is Dhanuka Roxa used for?

Dhanuka Roxa is marketed as an agricultural herbicide. The supplied product information identifies it with Pyroxasulfone 85% WG, which is used for early-stage weed management.

2. What is the technical composition of Roxa?

The supplied product name specifies Pyroxasulfone 85% WG. This composition should be confirmed against the original Dhanuka Roxa label.

3. Does Pyroxasulfone 85% WG control Gulli Danda?

Yes. ICAR wheat advisories recommend Pyroxasulfone 85% WG for managing Phalaris minor, commonly known as Gulli Danda or little seed canary grass.

4. What is the dosage per acre?

ICAR recommends 60 grams per acre of Pyroxasulfone 85% WG for specified wheat weed-management situations. Confirm the Roxa-specific dosage before application.

5. Can Roxa control fully grown weeds?

Pyroxasulfone mainly controls weeds during germination and early seedling development. It is not intended as a general knockdown herbicide for established weeds.

6. Is Roxa the same as PI Awkira?

PI Awkira is a Pyroxasulfone 85% WG herbicide. If the stated composition of Dhanuka Roxa is confirmed, both would share the same active ingredient and concentration. However, individual product registrations, approved crops and directions must be checked separately.

Note: Always follow the original registered product label for dosage, approved crops, application timing, crop safety and handling precautions. Incorrect herbicide application can result in crop injury or poor weed control.