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 is considered a sovereign nation and has been a sovereign nation since 1867, 1931, or at the latest, 1982. Even though Canada as Queen Elizabeth II as it's monarch, it is as Queen of Canada, and no longer as Queen of the UK. ------- The sovereignty of Canada has been debatable throughout it's history. The British North America Act of 1867 is the beginning of Canada as a nation, but not totally sovereign. The Statute of Westminster (1931) transferred several political powers from the UK parliament to the Canadian Parliament.