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- Use: Synthetic pyrethroid insecticide used to control a broad spectrum of insect pests (moths, beetles, flies, aphids) on numerous crops like cotton, fruits, vegetables, and cereals. Valued for its rapid "knockdown" effect.
- Conclusion: Cypermethrin provides effective, relatively low-mammalian-toxicity control compared to older chemicals like organophosphates, but its high toxicity to beneficial insects (especially bees), aquatic life, and fish, combined with increasing pest resistance, necessitates careful application timing and integrated pest management (IPM) strategies.