Effect of COY(Cooking Oil and Yolk Mixture) on Control of Tetranychus urticae

난황유의 점박이응애(Tetranychus urticae) 방제효과

  • Park, Jong-Ho (Organic Farming Technology Division, National Institute of Agricultural Science & Technology, Rural Development Administration) ;
  • Ryu, Kyoung-Yul (Organic Farming Technology Division, National Institute of Agricultural Science & Technology, Rural Development Administration) ;
  • Lee, Byung-Mo (Organic Farming Technology Division, National Institute of Agricultural Science & Technology, Rural Development Administration) ;
  • Jee, Hyeong-Jin (Organic Farming Technology Division, National Institute of Agricultural Science & Technology, Rural Development Administration)
  • 박종호 (농촌진흥청 농업과학기술원 친환경농업과) ;
  • 류경열 (농촌진흥청 농업과학기술원 친환경농업과) ;
  • 이병모 (농촌진흥청 농업과학기술원 친환경농업과) ;
  • 지형진 (농촌진흥청 농업과학기술원 친환경농업과)
  • Published : 2008.09.30


This study was conducted to develop an organic control method of two spotted spider mite(Tetranychus urticae) by using cooking oil and yolk mixture(COY) through evaluating its acaricidal activity in laboratory and green house. In laboratory, there is no significant difference in acaricidal activity against T. urticae within the COY including soybean, canola(rape seed), sunflower and olive oil. The acaricidal activity against T. urticae. increased from 17.6% to 94.1% as the COY became concentrated between 0.1% to 1%. The COY acricidal activity was effected by the quantity of treatment according to application methods. The COY dealt with T. urticae eggs presented 95% of the ovicidal activity. In rose greenhouse damaged by T. urticae, the COY(0.3%) was sprayed three times and resulted in the high control value of mites between 69.0% to 89.6%.


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