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Stop worrying about trees: Canada has 36 million acres more than we thought

OTTAWA — While environmentalists discourage farms from clearing their land, they should take heart in knowing that Canada has just discovered it has 36 million more acres of trees than we thought.

The Department of Natural Resources counted 858 million acres of trees. But when it recalculated tree cover, thanks in part to improved satellite imagery, the department found an additional 36 million acres. So, Canada has 894 million acres of trees.

Canada has the third-largest tree cover of all nations on earth. Only Russia and Brazil have more. Canada has 9 per cent of the world’s forests and about 90 per cent of Canada’s trees are on crown land.

In its annual report, Natural Resources Canada said less than 0.5 percent of timber lands have been lost to logging and farming. In 2019, Canadian agriculture de-forested 55,000 acres, the report said. “The forest area of Canada is relatively stable, with less than 0.5% deforested since 1990.”

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LALEXPERT: Sclerotinia cycle and prophylactic methods

Video: LALEXPERT: Sclerotinia cycle and prophylactic methods

White rot, also known as sclerotinia, is a common agricultural fungal disease caused by various virulent species of Sclerotinia. It initially affects the root system (mycelium) before spreading to the aerial parts through the dissemination of spores.

Sclerotinia is undoubtedly a disease of major economic importance, and very damaging in the event of a heavy attack.

All these attacks come from the primary inoculum stored in the soil: sclerotia. These forms of resistance can survive in the soil for over 10 years, maintaining constant contamination of susceptible host crops, causing symptoms on the crop and replenishing the soil inoculum with new sclerotia.