“Say Goodbye to Flies, Mosquitoes and Cockroaches by Boiling These Leaves” — Does it really work?
You may see viral posts recommending boiled bay leaves, neem leaves, eucalyptus leaves, mint, or other aromatic leaves as a natural insect repellent. Some plant compounds can repel insects under laboratory conditions, but there is not good evidence that simply boiling leaves will reliably eliminate flies, mosquitoes and cockroaches from a home. Studies of plant-derived chemicals show that some can have repellent effects, but laboratory results don’t necessarily translate into effective household pest control. (PubMed)
If you want to try a leaf-based method
You can use a cooled herbal infusion as a supplementary household measure, but don’t rely on it where mosquitoes could transmit disease. Avoid spraying unknown concentrated plant extracts on skin, around food, or near pets.
For mosquito protection, the CDC recommends proven repellents containing ingredients such as DEET, picaridin, IR3535, oil of lemon eucalyptus/PMD, or 2-undecanone, when used according to the label. (CDC)
What works better around the home?
- Remove standing water weekly, because mosquitoes breed in water-holding containers. (CDC)
- Repair window and door screens.
- Keep food sealed and clean crumbs and spills promptly.
- Don’t leave pet food or garbage exposed.
- For a persistent cockroach infestation, use an appropriate labeled insecticide or professional pest control rather than relying on boiled leaves.
Bottom line: Boiled leaves may smell unpleasant to some insects, but “say goodbye to all flies, mosquitoes and cockroaches” is an overclaim. Natural doesn’t automatically mean effective, and for mosquitoes in particular, reliable protection matters because they can transmit diseases. (CDC)
