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pp.23-27
Various acaricidal agents have been used to reduce the dust mite population. On the point of keeping people away from mite allergens, however, repelling mites from the living space of human is more effective than just killing them, because the dead bodies of mites still act as allergen. To examine the potential of Artemisia in controling house dust mites, Artemisia extract was evaluated for its repellency to Dermatophagoides farinae and D. pteronyssinus. Repellency tests were performed using filter-paper circles cut in halves. The Artemisia extract was applied on each half at concentrations of 0, 0.1, 0.2, 0.4 and 0.8㎕/㎠. Proper repellent effects of Artemisia extract on house dust mites were observed at the concentrations of ＞0.4㎕/㎠. As a positive control, lavender essential oil was used at concentrations of 0, 0.0125, 0.025, 0.05 and 0.1㎕/㎠. Lavender oil showed proper repellent effects at concentrations of ＞0.05㎕/㎠. These results suggest that Artemisia extract has potential to control the house dust mites, and might be useful as a dust mite repellent.
