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.
As a consequence of various conflicts, the United Kingdom gained and lost North American territories until left, in the late 18th century, with what mostly comprises Canada today. Pursuant to the British North America Act, on July 1, 1867, three colonies joined to form the autonomous federal Dominion of Canada.anada's long and complex relationship with the United States has had a significant impact on its economy and culture. Canada is a developed country and one of the wealthiest in the world, with the tenth highest nominal per capita income globally, and the eighth highest ranking in the Human Development Index.