The series compounds from natural products are an effective repellent and deterrent against various kinds of pests. In this study, we evaluated the spatial repellency of fifteen compounds from natural products on the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), in the laboratory and field by using two-choice and no-choice bioassays. In laboratory two-choice tests, six compounds displayed active spatial repellency against female adult mites at a 2mg dose. The repellency of each compound was also as effective as the 6-compound blend. Three of the six compounds showed the predominant repellent activity (over 90%) that lasted for at least 3 days in laboratory no-choice tests. In a field test, we found that the number of T. urticae was fewer in strawberry seeding treated lure with 2mg of these compounds than in strawberry seeding treated lure with solvent control. Given that the findings are efficacious, economical, and natural products, they can be used in the sustainable management of T. urticae in greenhouse.

• Ji Hye Oh(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Dong Hee Kim(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Ryeo Eun Kim(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Hyeon Gu Kim(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Eun Su Jang(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Sung Youn Jo(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Seo Yeon Park(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Da Hyeon Yu(Department of Plant Medicine, Gyeongsang National University, Jinju)
• Gwang Hyun Roh(Department of Plant Medicine, Gyeongsang National University, Jinju, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju)