What is Cytospora canker? Cytospora canker is one of the most common fungal diseases of Colorado blue spruce. This disease can also affect Norway spruce (and less frequently other spruces) as well as Douglas-fir and balsam fir. Trees that are 15 years old or older and are at least 20 feet high most typically show symptoms of this disease.
Canada has been an independent country since 1931, and does not belong to the United Kingdom. But it is still a member of the British Commonwealth, also called the Commonwealth of Nations, which is made up of the United Kingdom and several countries that used to be part of the British Empire.anada has been an independent country since 1931, and does not belong to the United Kingdom. But it is still a member of the British Commonwealth, also called the Commonwealth of Nations, which is made up of the United Kingdom and several countries that used to be part of the British Empire.
This began an accretion of provinces and territories and a process of increasing autonomy from the British Empire, which became official with the Statute of Westminster of 1931 and completed in the Canada Act of 1982, which severed the vestiges of legal dependence on the British parliament.he history of Canada covers the period from the arrival of Paleo-Indians thousands of years ago to the present day. Canada has been inhabited for millennia by distinctive groups of Aboriginal peoples, with distinct trade networks, spiritual beliefs, and social hierarchies.