Excerpts from the report: This study was prompted by the suspicion of low-temperature injury in a commercial shipment of acorn squashes which developed a high percentage of alternaria rot. The numerous spots of alternaria rot on the squashes were so strikingly similar to those found on low-temperature-injured tomatoes that chilling injury was immediately suspected. The purposes of the present study were to determine the time-temperature relationship to chilling injury of acorn squashes; determine symptoms of chilling injury; relate the occurrence of Alternaria rot to chilling injury; identify the species of Alternaria responsible for the rot; and obtain information on the nature and pathogenicity of the Alternaria fungus.