Biological control of Pseudococcus comstocki (Kuwana) with new indigenous natural enemy (Chrysoperla nipponensis (Okamoto)) was carried out on tropical plant (Trachycarpus fortunei (Hook)) from May to July in 2013. Control experiments were conducted at Tropical Plant Resources Research Center of Korea National Arboretum, Pocheon, Korea. Chrysoperla nipponensis was released once (20 larvae/m2) to control Pseudococcus comstocki on 11st May in 2013. We investigated the density of leaf-feeding P. comstocki at intervals of approximately 7 days after introducing their natural enemy, C. nipponensis. The densities of P. comstocki were suppressed 22.4% (after 4 weeks) and 8.2% (after 6 weeks) after introducing C. nipponensis.

• 함은혜((주)오상킨섹트 생물자원연구소) | Eun Hye Ham
• 이준석((주)오상킨섹트 생물자원연구소) | Jun Seok Lee
• 이봉우(국립수목원) | Bong Woo Lee
• 안태현(국립수목원) | Tae Hyun Ahn
• 진혜영(국립수목원) | Hye Young Jin
• 송정화(국립수목원) | Jeong Hwa Song
• 최영철(국립농업과학원 곤충산업과) | Young Chul Choi Corresponding Author