To control western flower thrips (Frankliniella occidentalis), a significant pest of peppers, the control effects of eco-friendly agricultural materials were tested when treated alone and in combination. The control effects of yellow sticky roll traps installed on the stem, predatory natural enemy (Hypoaspis miles) inoculated on the stem, and plant extracts (50% custard apple seed oil + 10% cinnamon extract) sprayed on the foliage were 45.3%, 36.6%, and 50.2%, respectively, when treated individually. Meanwhile, when three eco-friendly agricultural materials were comprehensively applied, the control effect was maintained between 62.4% and 80.9% compared to untreated conditions during the pepper harvesting season. These methods can be utilized for the eco-friendly control of western flower thrips in pepper greenhouses.

• Young Su Lee(Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services)
• Hee-A Lee(Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services)
• So-Hee Kim(Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services)
• Jong Yoon Choi(Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services)
• Ju-Hyung Yoo(Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services)
• Hyun Ju Lee(Department of Environmental Agriculture Research, Gyeonggi-do Agricultural Research and Extension Services)