Using ground-based multispectral radiometry to detect stress in wheat caused by greenbug (Homoptera: Aphididae) infestation

摘要: Greenbug (Schizaphis graminum (Rondani)) outbreaks appear in the Great Plains almost every year and have had significant economic impacts on wheat sorghum yields. Early detection of greenbug infestation becomes a critical part integrated pest management (IPM) for production. We conducted pilot study to determine feasibility using remote sensing techniques detect stress caused by infestation. The purpose this was characterize greenbug-induced hand-held radiometer. Reflectance data derived vegetation indices from 16 bands radiometer were analyzed statistically (SAS PROC MIXED). Results show that it is possible band centered at 694nm 800 identified as most sensitive damage due Broad Landsat TM also showed potential detecting