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1-naphthaleneacetic acid (NAA)

 including its salts, ester and acetamide

General Information

  • Product Names:
  • Chemical Class: Naphthalene acetate; plant growth regulator
  • Uses: Used to prevent preharvest drop of fruits, thin fruit trees (pome, citrus), control sprouting of citrus, and delay flower induction on various fruiting and nut plants including apples, pears, avocados, olives, mango.  Also stimulates root growth and delay leaf drop on ornamentals.
  • Alternatives: Organic agriculture

Health and Environmental Effects

  • Cancer: Not documented
  • Endocrine Disruption: Not documented
  • Reproductive Effects: Not documented
  • Neurotoxicity: Not documented
  • Kidney/Liver Damage: Yes (8)
  • Sensitizer/ Irritant: Yes (8, 27)
  • Birth/Developmental Not documented
  • Detected in Groundwater: Not documented
  • Potential Leacher: Not documented
  • Toxic to Birds: Not documented
  • Toxic to Fish/Aquatic Organisms: Not documented
  • Toxic to Bees: Not documented

Additional Information