Methyl bromide (MB) has been banned by Montreal Protocol due to ozone depletion in developed countries since 2005 but uses for quarantine & pre-shipment (QPS) remains exemption due to no appropriate alternatives yet available. However, in 2010, the prohibition of QPS in European Union(EU) will be expected to phase out MB worldwide use. There is an inevitable need for MB alternatives technology. Also, other consumer's demand in QPS is that MB has damaging effect to the quality of highly valuable fresh products: some fruits, vegetables and mostly cut flowers. We evaluated 2% of phosphine(PH3) and 98% of CO2 mixtures as MB alternative in export cut flower fumigation. On sensitivity test, larvae of Aphis gossypii were most tolerant to PH3 fumigation in all stage of A. gossypii, Tetranychus urticae and Frankliniella occidentalis. The LC99 and LCT99 value of mixture gas for larvae of A. gossypii was 55 mg/L (24hr, 15℃) and 1,224 mgh/L(15℃), respectively. On confirmation trials scheduled in 28m3 container, all stages of A. gossypii, T. urticae, and F. occidentalis were completely controlled in 100g/㎥ of mixture gas for 24hrs at 8℃, and no damage was observed in roses, chrysanthemums, and lilies. The PH3 and CO2 mixture technology in cut flowers fumigation and their application will plays an practically important roles in further MB replacement strategy in Korea.

백삼의 저장해충 방제를 위하여 사용되고 있는 phosphine gas 훈증법의 대체방안 연구의 일환으로, 살충 및 살균 효과를 지닌 5 kGy의 감마선 조사와 훈증처리가 상업적 조건으로 포장된 백삼의 수분, 사포닌, 당, 아미노산 등의 함량에 미치는 영향을 처리 직후와 2/70% RH 조건에서 6개월 간 저장 후에 비교되었다. 백삼의 초기수분 함량은 8.44%로 살충처리에 따라 변화되지 않았으며, 6개월 간 저장 후에도 10% 수준이 유지되어 비