The current protocols of methyl bromide (MeBr) fumigation on imported nursery plants, which are seriously infested with quarantine mealy bugs and scales, could be reevaluated because there were no limited uses of loading ratio, packing types etc. Another emerging issues is that the workplace health issues on MeBr fumigation are related with poor ventilation etc as well as well-known phytotoxic damages on them. In previous report, we have evaluated the efficacies of ethyl formate (EF) and phosphine (PH3) on different types of mealybugs. Herein, the phytotoxic damages of EF and PH3 on Alocasia, Sansevieria, Cactaceae and Croton genera were evaluated in terms of chlorophyll contents, color changes etc. This study showed that EF and PH3 fumigation on imported plants could be applicable to replacement of MeBr with further confirmation trials.

• Tae Hyung Kwon(Division of Applied Life Science (BK21+ Program), Gyeongsang National University, Safefume Inc.)
• Byung-Ho Lee(Institute of Agriculture and Life Science, Gyeongsang National University, USDA-ARS, Pacific Basin Agricultural Research Center, Hilo, USA)
• Se-In Park(Institute of Agriculture and Life Science, Gyeongsang National University)
• Eun Ji Lee(Division of Applied Life Science (BK21+ Program), Gyeongsang National University)
• Chung Gyoo Park(Division of Applied Life Science (BK21+ Program), Gyeongsang National University, Institute of Agriculture and Life Science, Gyeongsang National University)