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Iodosulfuron-Methyl Sodium

Type: Herbicide

Mode of Action: Inhibiting the enzyme acetolactate synthase (ALS)

Common Product Names: Derigo & Autumn Super

What is it?

Iodosulfuron-Methyl Sodium is a post-emergent herbicide, meaning it is applied after the weeds have already emerged. It is particularly effective against a wide range of grass and broadleaf weeds. This active ingredient is known for its excellent selectivity, making it safe for use in cereal crops such as wheat, barley, and rye. It is also characterized by its ability to work at very low application rates, reducing the environmental impact compared to other herbicides.

How does it work?

When applied to crops, Iodosulfuron-Methyl Sodium is absorbed by the leaves of the weeds. It then translocates to the growing points of the plants, where it inhibits the acetolactate synthase enzyme. This inhibition disrupts the production of branched-chain amino acids, which are vital for plant growth. As a result, the weed's growth is halted, leading to its eventual death.

Benefits

  • Selectivity: Safe for use in cereal crops without harming them.
  • Low Application Rates: Requires lower amounts of the active ingredient, making it environmentally friendly.
  • Post-Emergent Application: Ideal for use after weeds have emerged, providing flexibility in weed management.
  • Rapid Results: Visible effects on weeds are often seen within days of application.
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