Citronella is an effective deterrent to biting insects like mosquitoes and sand flies. Citronella essential oil when used as a spray-on repellent was 98% effective immediately after application. When applied to the skin at 3% concentration citronella was nontoxic and effective at ranges up to 98%. The active compounds in citronella oil for repelling mosquitoes are camphor, eucalyptol, eugenol, linalool, citronellal and citral.

Citronella is an effective deterrent to biting insects like mosquitoes and sand flies.  Citronella essential oil when used as a spray-on repellent was 98% effective immediately after application.  When applied to the skin at 3% concentration citronella was nontoxic and effective at ranges up to 98%.  The active compounds in citronella oil for repelling mosquitoes are camphor, eucalyptol, eugenol, linalool, citronellal and citral.
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