Spruce trees should be full, green, and vibrant in your yard and landscaping. There are many problems that could lead to damage, including fungal diseases like rhizosphaera needle cast.
DNR Many homeowners in northern Minnesota are asking the questions: Are my spruce trees dying? Should I be spraying something on them to help?  Your spruce trees are not dying and ...
It stripped the needles from fir and spruce trees across most of northern Maine, killing 7 million acres of trees and costing the state’s forest economy hundreds of millions of dollars.
Dr Trujillo Moya and colleagues have continued to monitor Norway spruce trees in the mountains of Austria, allowing the team to select trees that seem to display a resistance to the disease.
A sniffer dog has been successfully trained to detect a tree disease as ... combat other pests and diseases such as Ips typographus, also known as the eight-toothed spruce bark beetle, fulfilling ...