Bunuel wrote:
In a study published by the US Fish and Wildlife Service, researchers proposed a cause for the chestnut die-off: a fungus called Cryphonectria parasitica, which was introduced to the United States in the early 1900s,invading the tree’s bark, forms cankers as it spreads and lowering the pH of infected tissue to toxic levels, leads to the death of the tree within a short period.
A. invading the tree’s bark, forms cankers as it spreads and lowering the pH of infected tissue to toxic levels,
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