Plant Disease Management Handbook

Winter injury of rose. Note the black and yellowed canes.

Winter injury on Eucalyptus tree. Note that the base of the tree protected by the surrounding vegetation is still alive.

The white, yellow, chlorotic leaves on the Mexican Orange (Choisya ternata) in the center of the picture are only on the exterior of the canopy and developed shortly after the snow fall event.

Maple with a weeping canker injury from freezing winter temperatures. Canker is shown in the upper portion of the picture with discolored, stained bark around and below.

The winter of 2013-2014 killed many Ceanothus in western Oregon. This plant almost died but still has some life at the base of the plant.

Marion blackberries are very susceptible to cold temperature damage. All above ground portions of this plant were killed but the crowns are still alive sending up new primocanes.

Winter injury on peach caused flower buds to wither up and drop off. Flower bud scar to the right of the pink buds and a dried flower bud below.

Flowering pear tree with winter injury to one side. Damage on the southwest side easily seen in the left image the summer after the injury occurred. Center image is the same tree 2 years later and again 4 years later on the right.