PROBLEM TO BE SOLVED: To accurately discriminate between a tree contracting a disease and a sound tree without the need of experience and skill.SOLUTION: A disease contraction diagnostic method includes a measurement step to measure the surface temperature of a leaf of Hevea brasiliensis, and a determination step to determine whether the Hevea brasiliensis contracts a disease on the basis of the measured temperature obtained in the measurement step.COPYRIGHT: (C)2014,JPO&INPIT【課題】経験や熟練を必要とすることなく、罹病木と健全木の区別を精度良く行う。【解決手段】罹病診断方法は、パラゴムノキの葉の表面温度を測定する測定工程と、前記測定工程によって得られた測定温度に基づいて、前記パラゴムノキが罹病しているか否かを判別する判別工程とを備える。【選択図】図1
