Pyrithiobac-sodium 10% EC is a highly selective, systemic, post-emergence herbicide primarily used in agriculture to control broadleaf weeds in cotton crops. It is formulated as an Emulsifiable Concentrate (EC), often applied early post-emergence to target weeds at the 2-4 leaf stage
Description and Mode of Action
Active Ingredient: Pyrithiobac-sodium (10% w/w).
Target Weeds: Highly effective against problematic broadleaf weeds (dicot weeds) such as Trianthema spp. (santti), Amaranthus spp., Chenopodium spp., Digera spp., Celosia argentia, and Ipomoea (morning glory).
Mode of Action: It acts as an Acetolactate Synthase (ALS) inhibitor. It is absorbed by the leaves and roots of the weeds, stopping the synthesis of essential amino acids and proteins, which leads to the cessation of weed growth and eventual death.
Selectivity: The herbicide is highly safe for cotton crops, as it selectively eliminates weeds without damaging the crop when used at recommended doses.
Key Agricultural Benefits
Superior Broadleaf Control: Offers effective control of a wide range of dicot weeds, reducing competition for nutrients, light, and water, which enables healthier, more robust cotton plants.
Early Post-Emergence Application: Acts quickly on actively growing weeds, providing faster results and long-lasting suppression.
Increased Crop Yield: By managing weeds effectively, particularly in the early stages, it helps improve overall cotton lint yield and quality.
Safe to Succeeding Crops: Research indicates it is safe for subsequent crops planted after the cotton harvest, as it does not leave detrimental long-term soil residues.
Cost-Effective & Labour Saving: Reduces the need for manual weeding (hand weeding), saving labor costs and time.
Systemic Activity & Soil Action: As a systemic herbicide, it is absorbed by foliage and roots. Its soil activity also helps control weeds germinating after application.
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