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.
Canada dates its history as a country to the British North America Act, 1867, which came into effect on July 1, 1867. However, Canada was not established as fully independent, since the United Kingdom retained legislative control over Canada and full control over Canadian foreign policy.his was the first of the British North America Acts to be enacted by the Canadian Parliament (rather than by the British Parliament). That had been made possible under the provisions of the British North America (No. 2) Act, 1949.