Temperature Declines During Storms and Irrigation May Contribute to Fire Blight Infection of Pear Fruit

Fig. 3. Temperatures (red line) and wetting periods (yellow bar) as measured in Highland, New York, for four days during 2002 when rapid temperature declines may have contributed to infection of immature pear fruit by E. amylovora.



Image from Plant Health Progress article:
Temperature Declines During Storms and Irrigation May Contribute to Fire Blight Infection of Pear Fruit