Problems that you can
help white pine overcome
Whether you find them already growing on your land or you plant them,
white pines benefit from forest management. White pines need to be planted
where they can avoid diseases and insects and be protected from deer browse
and plant competition. White pine seedlings can not be "stuck"
in the ground and forgotten.
White pine blister rust is a fungal disease that infects needles
but spreads into the branches and stem where it causes branch death, topkill,
stem cankers and can be fatal. It is an exotic disease, first found in
Minnesota in 1916. The major problem with this disease is that it kills
white pine seedlings and saplings in certain climates and topographies.
White-tailed deer like to feed on white pine seedlings and saplings
which stunts or kills them. Deer chew off twig tips, particularly the buds
on the growing tip (terminal leader).
White pine weevils are insects that cause the wilting and death
of the tree's leader (or terminal) in June or July. At least two years'
height growth can be lost in a single attack and the damage usually causes
forking of the stem. Repeated attacks cause the tree to become bushy and
Weeds, grasses and shrubs compete for light, water, nutrients
and space with the white pine seedlings. Seedlings can grow slowly, be
stunted or die from competition.