The acaricidal activity of extracts of Gleditsia japonica var. koraiensis, Camellia sinensis, Cinnamomum cassia, Lantana camara and their mixtures against the tea red spider mite, Tetranychus kanzawai was evaluated. Treatments with mixtures 3 and 1 were effective against the adult females of T. kanzawai and yielded 82.0% and 77.3% adulticidal activities at 7 days after treatment, respectively. Treatment with mixture 2 revealed 68.0% adulticidal activity. Generally, the acaricidal activity of the single treatment of each plant extract was lower than the mixtures. The adult females of T. kanzawai treated with mixtures 3 and 1 produced only 24.0~29.6% as many eggs as control females did. The residue of the plant extracts tested had low adulticidal activity (16.7~31.3% at 7 days after treatment). All the plant extracts tested exhibited no remarkable toxic effect to the eggs of T. kanzawai. Treatments of mixtures 3 and 1 were effective against nymphs of T. kanzawai and led to emergence rates of 16.7 and 22.0%, respectively. These results suggest that mixtures 3 and 1 might be used for the control of T. kanzawai in tea fields.

Ⅰ. 서 론
 Ⅱ. 재료 및 방법
  1. 실험에 사용한 차응애와 사육조건
  2. 식물추출물
  3. 식물추출물들의 단독 처리와 혼합 처리에 대한 차응애 각 발육단계별 감수성 검정
 Ⅲ. 결과 및 고찰
 Ⅳ. 적 요
 References

• 강충수(순천대학교 식물의학과) | Kang Choong-Soo
• 국용인(순천대학교 한약자원개발학과) | Kuk Yong-In
• 김상수(순천대학교 식물의학과) | Kim Sang-Soo Corresponding author