Wrapping the trunks of small trees in your yard (PDF) - University of ...

Greenwald 2013
gashed, and cut as other necrotic callused tissue forms. Trees which do not succumb to disease pressure from
these open wounds, survive for years to come in this damage state.
Utah State University Extension recommends wrapping trees in the fall with white tree wrap to prevent the
bark of the trees facing southwest from warming too much in the late winter; helping to keep the bark cool,
dormant, and free of cracks and dead damage tissue. When wrapping a young southern magnolia back home, I
tucked the corner of the warp securely under itself to hold it in place. Since our last frost is around April 15 th -
20 th , wait to remove the warp till after this date.
If the proper step is taken to limit winter cold injury to small trees, southwest injury and frost cracks can be
avoided. 12
1 http://extension.usu.edu/files/publications/factsheet/nr_ff_021pr.pdf
2 http://www.ext.colostate.edu/ptlk/2111.html