Lewis County Herald - Serving Hohenwald, Lewis County Tennessee Since 1898

EarthTalk

 
Series: Earth Talk | Story 2

October 15, 2020



 

Dear EarthTalk:
Is DEET natural and is it safe to use topically as a mosquito repellent? And which formulations and concentrations are advised?
-- M. Frey,
Milwaukee, WI

DEET (short for “diethyltoluamide”) is a synthetic compound invented by the U.S. Army in 1946 that can be applied topically to repel mosquitos, ticks, fleas, chiggers, leeches and other biting insects. Unlike other repellents which actually deter bugs with smells they don’t like—or even kill them on contact—DEET just makes it harder for pests to smell us so they are more likely to leave us alone...



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