초록
실제 검역시 이용되고 있는 훈증방법($MB\;48g{\cdot}m^{-3}$)과 새로 개발한 혼합 훈증방법($MB/PH_3,\;7/3g{\cdot}m^{-3}$)이 해충에 대한 살충력과 절화장미와 백합의 절화수명 및 식물약해에 미치는 영향을 조사하였다. 수송직후 저농도의 혼합훈증처리($MB/PH_3,\;7/3g{\cdot}m^{-3}$)는 2일간 모의수송 후 훈증처리($MB\;48g{\cdot}m^{-3}\;20^{\circ}C$)보다 진딧물, 응애, 총채벌레에 대한 살충력이 높은 것으로 나타났다. 또한, 절화별 식물약해에서는 차이가 있었으나, 절화의 품질과 수명은 수송직후 전처리와 상관없이 $10^{\circ}C$에서 $7/3g{\cdot}m^{-3}$으로 2.5-3시간 훈증 처리하는 것이 가장 좋은 효과를 나타내었다. 2일간 모의수송후 $MB\;48g{\cdot}m^{-3}$ 처리는 살충력은 높았으나, 전처리유무와 상관없이 백합, 장미 모두에게 식물약해를 미치며 절화수명을 단축시키는 것으로 나타났다.
Effects of traditional fumigation (methyl bromide; MB) and combined fumigation (methyl bromide/phosphide; $MB/PH_3$) on the disinfestation, and phytotoxicity and longevity of cut flowers (lily and rose) were investigated. Combined fumigation with low concentrations of $7/3g/m^3\;(MB/PH_3$) at $10^{\circ}C$ immediately after transportation from harvested place was found to be much more effective in disinfestation of aphid, mite, and thrips than fumigation with $MB\;48g/m^3$ only at $20^{\circ}C$ after simulated transportation for 2 days. Quality and longevity of cut flowers measured after fumigation were better in flowers treated by combined fumigation ($7/3g/m^3,\;MB/PH_3$) at $10^{\circ}C$ for 2.5-3 hrs, irrespective of pretreatment with pulsing solution immediately after transporation, even though phytotoxicity varied with cut flowers fumigated. On the other hand, fumigation with $MB\;48g/m^3$ only at $20^{\circ}C$ after simulated transportation for 2 days showed tendency of enhanced insect disinfestation, but caused phytotoxicity to both lily and rose, regardless of pretreatment and moreover, reduced the longevity of the cut flowers.