Using airborne digital imagery for detecting oak wilt disese

Using airborne digital imagery for detecting oak wilt disese

Color-infrared (CIR) digital imagery was evaluated as a remote sensing tool for detecting oak wilt disease in live oak (Quercus fusiformis). Aerial CIR digital imagery and CIR photography were obtained concurrently of a live oak forested area in south-central Texas affected by oak wilt. Dead, diseas...

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Veröffentlicht in:Plant disease 1999, Vol.83 (6), p.502-505
Hauptverfasser: Everitt, J.H, Escobar, D.E, Appel, D.N, Riggs, W.G, Davis, M.R
Format: Artikel
Sprache:eng
Schlagworte:
aerial photography
analysis
Ceratocystis fagacearum
detection
disease diagnosis
image analysis
morbidity
mortality
reflectance
remote sensing
wilts
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Zusammenfassung:Color-infrared (CIR) digital imagery was evaluated as a remote sensing tool for detecting oak wilt disease in live oak (Quercus fusiformis). Aerial CIR digital imagery and CIR photography were obtained concurrently of a live oak forested area in south-central Texas affected by oak wilt. Dead, diseased, and healthy live oak trees could generally be delineated as well in the digital imagery as in the CIR photography. Light reflectance measurements obtained in the field showed that dead, diseased, and healthy trees had different visible and near-infrared reflectance values.
ISSN:0191-2917
1943-7692