Citadel 25 OD

Advanced Rice Protection: The Science of Penoxsulam

"Citadel 25 OD" represents a specialized solution for weed management in rice cultivation, formulated with penoxsulam. The use of an oil dispersion (OD) formulation is a critical technical feature: it prevents rapid drying of the droplets on the leaf surface, ensuring superior penetration into the weed's meristematic tissues.

Mechanism of Action and Selectivity

As a systemic herbicide, Citadel 25 OD moves through the xylem and phloem, inhibiting the acetolactate synthase (ALS) enzyme. This disruption halts the biosynthesis of vital amino acids, effectively stopping the growth of weeds, specifically Alisma plantago-aquatica (water plantain). The product maintains high selectivity through metabolic detoxification within the rice plant, ensuring the crop remains unaffected while the target weeds are eliminated.

Technical Specifications and Application

• Dosage Rate: 0.5–1.25 L/ha, adjusted according to the infestation level and weed growth stage.
• Application Timing: Post-emergence application.
• Manufacturing Standards: Produced by Dow AgroSciences (Italy) and Hangzhou Nutrichem (China), ensuring global quality standards.
• Safety and Regulatory: Classified under Hazard Class 3. The pre-harvest interval is 60 days, essential for proper crop rotation and harvesting planning.

The formulation of Citadel 25 OD is designed to reduce stress on the rice crop while maintaining high efficacy against target species. Its systemic action allows for reliable performance, making it a cornerstone for integrated weed management programs in rice fields.