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Yellow Stem Borer (YSB) is one of the most destructive pests for rice farmers. Effective control begins with choosing the right insecticide at the right stage. Below are the 10 best insecticides you can use today. 10 Best Insecticide for Yellow Stem Borer 1. Coragen (Chlorantraniliprole) Coragen contains Chlorantraniliprole, a modern insecticide targeting Yellow Stem Borer. It affects muscle contraction in larvae, leading to paralysis and death. Its systemic action ensures deep plant protection. This product is widely recommended by agronomists across Asia. It provides long-lasting control with minimal environmental impact. Coragen is safe for beneficial insects when used as directed. Apply Coragen early when larvae are still young. It works through ingestion and contact for double impact. Farmers favor its residual activity and crop safety. 2. Rynaxypyr 20% SC Rynaxypyr 20% SC is known for its fast-acting formula. It belongs to the anthranilic diamide class of chemicals. It disables ryanodine receptors in the pests’ muscles. This insecticide is highly effective when applied during early larval stages. It offers protection for up to three weeks. The formulation is water-based and easy to apply. Farmers appreciate Rynaxypyr for its dual action. It works through both contact and ingestion. It’s also compatible with integrated pest management strategies. 3. Cartap Hydrochloride 4% G Cartap Hydrochloride is a granular insecticide applied directly to the soil. It’s absorbed by plant roots and moves systemically. It targets larvae hiding within plant stems. This insecticide offers quick paralysis and pest mortality. It is highly effective when used during the early crop stage. The granules make application easy and reduce drift. Cartap works through both contact and systemic action. It’s especially good for concealed pest stages. Farmers trust it for dependable results. 4. Fipronil 0.3% GR Fipronil is a powerful neurotoxic insecticide. It disrupts the nervous system of stem borers. This results in rapid pest knockdown and death. Fipronil granules are suitable for wetland paddy fields. Application during transplanting provides long-lasting control. It’s known for excellent residual effects. It works both on contact and via ingestion. The 0.3% granules allow even field distribution. It remains effective even under flooded conditions. 5. Triazophos 40% EC Triazophos is an organophosphate insecticide. It provides both contact and systemic action. It inhibits the pest’s nervous system functions. This insecticide is cost-effective and quick-acting. It’s used in various cropping systems across Asia. Ideal for rotation in pest management plans. Apply Triazophos at early infestation stages. It kills larvae hidden in stems efficiently. However, care must be taken due to its toxicity. 6. Buprofezin 25% SC Buprofezin is a chitin synthesis inhibitor. It prevents the larvae from molting. This results in gradual death over time. It is safe for natural enemies and pollinators. Buprofezin provides selective action on stem borers. It does not affect the rice plant’s growth. The product is water-soluble and easy to mix. Spray it during the vegetative stage. Its selective action helps maintain ecological balance. 7. Lambda-Cyhalothrin 5% EC Lambda-Cyhalothrin is a synthetic pyrethroid. It offers rapid knockdown action. It works through contact and ingestion. This insecticide is ideal for use during peak larval activity. It provides 7 to 10 days of residual effect. Farmers use it as part of rotation strategies. It’s effective against a broad spectrum of pests. Lambda is economical and widely available. Rainfastness ensures performance during wet spells. 8. Phosphamidon 85% SL Phosphamidon is a systemic insecticide. It rapidly enters the plant’s vascular system. It delivers immediate and thorough pest control. Application during the vegetative stage is most effective. It acts as both a contact and stomach poison. Fast absorption means quick results. Though highly effective, it must be handled with care. Protective equipment is recommended. Use it when pest pressure is high. 9. Monocrotophos 36% SL Monocrotophos is a strong organophosphate. It targets the central nervous system of pests. It is absorbed through foliage and roots. This insecticide is fast-acting and cost-effective. It’s often used in emergency pest outbreaks. Application timing is critical for results. While effective, it’s toxic to humans and animals. Follow all label instructions carefully. Use it as a last-resort measure. 10. Chlorpyrifos 20% EC Chlorpyrifos is a broad-spectrum organophosphate. It disrupts the pest’s enzyme activity. This leads to paralysis and death. It provides both contact and systemic action. It is widely used in paddy fields globally. Farmers value its reliability and fast control. Use Chlorpyrifos during early infestation. Avoid application during flowering. Monitor pest levels before use. Conclusion Yellow Stem Borer poses a major threat to rice farming. These ten insecticides offer powerful, effective, and reliable control. Each works best when applied at the correct crop stage. Always rotate chemical classes to prevent resistance. Consider using a combination of insecticides and cultural practices. Safety gear and proper dosage are a must. Choose the product that suits your field conditions and budget. Apply early, monitor results, and stay consistent. Your harvest will thank you.

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