Abstract
Fruit damage by stink bugs in orchards began to occur nationwide from the 1970's. Locally, in Wakayama Prefecture, persimmons and peaches have been hurt nearly every year. This study focuses on a GIS based analysis of stink bug damage as related to stink bug origin from cedar and cypress forests. First, the satellite data was delineated according to mountain slope angle and direction of slope to improve the accuracy of the land cover map. The land cover map was built from satellite data, from which the orchards and cedar and cypress forests and orchards areas were then taken. Next, the distance (from orchards to the cedar and cypress forest) and the area (the cedar and cypress forest that exists around orchards) were calculated via spatial analysis. Results displayed a high correlation between the damage data and cedar and cypress forest area. Moreover, maps forecasting damage levels could be extrapolated from the spatial analysis results.
