Abstract
Macartney rose (Rosa bracteata) is an evergreen shrub that often creates a range management problem in southeastern Texas. A study was conducted to determine the potential of using remote sensing technology to distinguishMacartney rose on the Texas Coastal Prairie. Field reflectance measurements showed that Macartney rose had higher near-infrared reflectance than associated plant species and mixtures of species in February and March. Macartney rose had a bright red image tonal response on color-infrared aerial photographs obtained in late winter. Computer analysis of a color-infrared photographic transparency showed that Macartney rose populations could be quantified. An accuracy assessment performed on the classified image showed that both the user's accuracy and producer's accuracy for Macartney rose were 100%.
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