Wounds, either natural or from human activities, are important infection courts for all members of the genus Ceratocystis, including C. fimbriata. Inoculum may reach an open wound by being blown in the wind in insect frass (Iton, 1960) or by being carried by insects that visit the wound. Nitidulid beetles that feed on fungi and plant sap may be important vectors (Moller and DeVay, 1968b). Cultivation practices such as pruning may also provide infection courts (Teviotdale and Harper,