Stress and Disease Affecting Midwest Spruce Trees By Larry Caplan, Extension Horticulture Educator, Vanderburgh County, IN For the Evansville Courier and Press, May 28, 2017 Norway spruce and blue ...

When planting new trees, consider planting Norway or white spruce, which are more resistant to Rhizosphaera. Other spruce, like Serbian, simply haven’t had widespread evaluation in the Midwest, so ...

The group of researchers evaluated the effects of projected climate changes on Norway spruce seedlings experimentally infected with a forest pathogen capable of killing also mature trees. In ...

Dealing with tree deformity and disease Q: Hi Gerald, our five-year-old Norway spruce trees in the backyard have deformed/brown curling leaders. We have seen white worms on them that could be weevils.

This disease is most severe on Norway and Colorado blue spruce species and is most common on trees more than 15 years old. Your tree is probably older than 15 years, based on its size when you ...

Fungal Disease Infects Blue Spruce Trees Across The Midwest. By Angelo Bautista Posted June 5, 2017. ... He recommends planting other types of trees such as Norway spruce, ...

FARGO -- A potentially devastating disease epidemic is attacking our region's most common evergreen trees. Colorado, Black Hills and Norway spruce have long been planted in yards and shelterbelts.

This disease causes needles on Colorado Blue Spruce to turn a purplish brown color before dropping from the branches prematurely. This greatly reduces the vigor and aesthetic quality of affected ...