Researchers at the University of California, Riverside, have discovered that the chemical bistrifluron effectively kills drywood termites by disrupting their ability to molt. Published in the Journal of Economic Entomology, this method boasts a 95% success rate while being harmless to mammals, presenting a greener alternative to traditional fumigation.
Drywood termites, which infest wooden structures, rely on molting to grow. Bistrifluron prevents them from forming new exoskeletons, ultimately leading to their death. The study found that the chemical not only slows termite activity but also spreads within colonies, causing their collapse within two months. Unlike conventional fumigation, which is toxic and temporary, bistrifluron offers a targeted, long-lasting solution.
“Termites can’t avoid molting—it’s essential for their growth,” explained Dr. Dong-Hwan Choe, senior author of the study. “This chemical leaves them vulnerable without a protective exoskeleton.”
The research builds on earlier work by the Choe lab, which used pinene, a tree-scented lure, to enhance termite eradication. Combining pinene with insecticides increased mortality rates from 70% to over 95%.
With drywood termites expanding their range due to climate change, bistrifluron could become a key tool in pest control. The team is now refining the chemical’s application to make it practical for real-world use. This innovation promises to reduce environmental harm and protect homes more effectively.
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