Neem Oil

Neem oil is a naturally occurring pesticide found in seeds from the neem tree. Neem oil is a mixture of components. Azadirachtin is the most active component for repelling and killing pests and can be extracted from neem oil. The portion left over is called clarified hydrophobic neem oil. Neem oil's many components work together to act as an insect repellent, feeding reducer, and Insect Growth Regulator (IGR). Products containing neem oil are applied to a wide variety of crops and ornamental plants for insect control.

Information about Neem Oil

• What is neem oil?
• What are some products that contain neem oil?
• How does neem oil work?
• How might I be exposed to neem oil
• What are some signs and symptoms from a brief exposure to neem oil?
• What happens to neem oil when it enter the body?
• Is neem oil likely to contribute to the development of cancer?
• Has anyone studied non-cancer effects from long-term exposure to neem oil?
• Are children more sensitive to neem oil than adults?
• What happens to neem oil in the environment?
• Can neem oil affect birds, fish, and other wildlife?

Neem Oil Fact Sheet (Web | PDF)

Neem Oil Infographic

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If you have questions about this, or any pesticide-related topic, please call NPIC at 800-858-7378 (8:00am - 12:00pm PST), or email at npic@ace.orst.edu.