title: Remote detection of biological stresses in plants with infrared thermometry.
abstract: Green leaves of mature sugar beets infected with Pythium aphanidermatum and cotton infected with Phymatotrichum omnivorum had midday radiant leaf temperatures 3 degrees to 5 degrees warmer than adjacent plants with no sign of disease. The temperature difference persisted under varying conditions of soil moisture and could be used to detect biological stress imposed by these soilborne root-rotting fungi.
authors.forename: P J
authors.initials: PJ
authors.lastname: Pinter
authors.forename: M E
authors.initials: ME
authors.lastname: Stanghellini
authors.forename: R J
authors.initials: RJ
authors.lastname: Reginato
authors.forename: S B
authors.initials: SB
authors.lastname: Idso
authors.forename: A D
authors.initials: AD
authors.lastname: Jenkins
authors.forename: R D
authors.initials: RD
authors.lastname: Jackson