Miscellaneous uses

Rosemary is a known antimicrobial agent. The powdered leaves are used as an effective natural flea and tick repellent. Rosemary oil possesses marked antibacterial, antifungal, and antiviral properties. Rosemary oil was found to be most active against meat-spoiling bacteria. A report on the use of rosemary to treat head lice found it to be ineffective.