Fungus gnats are tiny flies that infest greenhouses. Gardeners have insisted that Bounce fabric sheets tucked into their pockets repel the pesky gnats. Fact or urban legend?
Ray Cloyd checked it out in his lab and indeed their is a repellent effect. The laundry sheets contain linalool and beta-citronellol, chemicals known to have repellent properties.
Rather than trap the gnats on yellow sticky cards, gardeners have the option to Bounce them out of the greenhouse.
Jonathan Neal is a retired Associate Professor of Entomology at Purdue University and author of the textbook, Living With Insects (2010).
This blog is a forum to communicate about the intersection of insects with people and policy. This is a personal blog.
The opinions and materials posted here are those of the author and are in no way connected with those of my employer.
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