My Black Hills Spruce trees are dying.
Three of my trees seem to be losing all their needles. These trees coincidentally are the ones loaded with cones. These trees have been established for many years and are 12 to 20 feet tall. Is there anything I can do? There seems to be no discoloration of the needles, they're just falling off.
Houston County Minnesota
Did all the needles drop or older needles or newer needles? Are just the needles affected or other parts of the tree?
There are a number of diseases and insects that can cause sudden needle drop. I suggest you look at these diagnostic sites: