Spruce Dropping Needles.
May 18, Spruce and coniferous trees are susceptible to environmental, insect and disease problems that can cause the trees to discolor, lose needles and possibly die. Spruce in both urban and rural landscapes can be affected. Spruce trees can show brown needles starting from the lower limbs and progressing up the tree.
One common needle disease in Minnesota, Rhizosphaera needle cast, is caused by the fungus Rhizosphaera kalkhoffii. Blue spruce. May 23, There are several reasons why a spruce trees needles might turn brown and drop. Before action is taken on saving the tree, it is important to find out why the needles are dropping as this will determine the necessary course of action, if any.
The most common cause for needle drop is Estimated Reading Time: 3 mins. Jun 28, As a result, trees affected by needlecasts often have an outer “shell” of live needles on current shoots and dead needles on older shoots (Photo 3). The two most common needlecasts we find in spruce are caused by the fungal pathogens Rhizosphaera. Aug 15, Its hard to tell if more have lost needles. All the needle loss is only on the south side of the tree.
None of the north side limbs have lost needles. See attached pictures. I had a local tree company look at it. He suggested that it might have root rot and I will lose the tree. Another company said that the tree is just recovering from too much water and that the top would be dying if it were sick. Moisture loss from needles during winter can’t be replaced. Needles on branches above snow line turn brown from tip toward base and often on the south or southwest side of the crown.