Penoxsulam 21.7% SC

Penoxsulam 21.7% SC is a systemic herbicide formulated as a suspension concentrate (SC). It is primarily used for selective weed control in rice paddies and other aquatic environments. The active ingredient, penoxsulam, inhibits essential plant enzyme activity, leading to weed growth inhibition and eventual death. The SC formulation allows for easy mixing and application, ensuring uniform coverage on weed surfaces. It provides residual control, effectively targeting a wide range of aquatic and semi-aquatic weeds to protect rice crops.

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Description

Mode of Action of Penoxsulam 21.7% SC

Penoxsulam, a herbicide, acts through a mode of action that involves inhibiting the enzyme acetolactate synthase (ALS), also known as acetohydroxyacid synthase (AHAS), in susceptible plants. When applied, penoxsulam is absorbed by the leaves and stems of the target weeds. It translocates within the plant, moving throughout the vascular system. Once inside the plant, penoxsulam specifically targets and inhibits the ALS enzyme.

ALS is involved in the biosynthesis of essential branched-chain amino acids, such as valine, leucine, and isoleucine, which are crucial for protein synthesis. By inhibiting ALS, penoxsulam disrupts the production of these amino acids, resulting in the accumulation of toxic metabolites and the impairment of protein synthesis. The inhibition of ALS leads to a series of physiological disruptions within the weed, including the disruption of cell division, growth, and development. This ultimately results in growth inhibition and the eventual death of the target weeds.

Benefits of Penoxsulam 21.7% SC

  • Effective against a wide range of weeds
  • Systemic action
  • Provides long-lasting control
  • Safe for use on a variety of crops

Application Method

Foliar Spray

Target Crops, Weeds, and Dosage of Penoxsulam 21.7% SC

Crop(s)

Target Disease

Dosage/Acre (Gm)

Dilution in Water (Lit/Acre)

Rice

Echinochloa colona, Echinochloa crusgalli Cyperus difformis, Cyperus iria, Fimbristylis miliacea, Monochoria spp.,  Ludwigia spp., Ammania baccifera, Sphenoclea zeylanica

30-40

200