Exposure to house dust mites is closely connected with allergic diseases such as atopic dermatitis, allergic rhinitis, and asthma. House dust mites (Dermatophagoides farinae and D. pteronyssinus) act as allergens even after their death. Therefore, repelling the house dust mites is more effective method than killing them. Many chemical agents have been used in killing house dust mite. However, it is usually reported that these chemical agents (acaricides) exhibit adverse effects and toxicity toward animals and human. For these reasons, we carried out the experiments for measuring the repellent activity of Mate tea and Jasmine tea against house dust mites in this experiment. In order to determine the concentration having the most effective repellent effect of Mate and Jasmine tea, house dust mites (D. farinae and D. pteronyssinus) were exposed at different concentrations (0, 0.015625, 0.03125, 0.0625, 0.125, 0.25, 0.5 mg/40 μL) of Mate tea and Jasmine tea extracts, respectively, for different hours (0.5, 1, 2, 3 hours). The most effective repellent effect (%) against house dust mite in 0.25 mg/40 μL of Mate tea for 2 hours was 73.5%, Jasmine Petal tea in 0.0625 mg/40 μL for 1 hour was 84.1% and Pearl Jasmine tea in 0.125 mg/40 μL for 0.5 hour was 82.8%. These results suggest that Mate tea and Jasmine tea extracts have potential effect to repel the house dust mites (D. farinae and D. pteronyssinus)

Introduction
 Materials and Methods
  집먼지진드기
  실험물질의 준비
  실험물질의 추출, 여과 및 농축 방법
  실험물질의 희석
  실험방법(살진드기효과:acaricidal effect)
  실험방법(기피효과: repellent effect)
 Results
  마테차, 쟈스민꽃잎차, 진주쟈스민차의 살진드기효과(acaricidaleffect)
  마테차 (Mate tea)의 기피효과
  쟈스민꽃잎차 (Jasmine petal tea)의 기피효과
  진주쟈스민차 (Pearl Jasmine tea)의 기피효과
 Discussion
 References

• Sook Jae Lee(College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea)
• Cha Ho Jee(College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea) Corresponding author