Botanists may have worked out why pine trees suddenly died across China in the 1970s

Chinese botanists say they may have an explanation for a mass die-off of plantation pine trees across the country that has baffled scientists for 50 years – it could be all in the genes.The Pinus armandii, or Mount Hua pine, is a species native to China, and can survive in harsh conditions such as mountain cliffs. The white pine is also a symbol of long life in Chinese culture – the Taoist God of Longevity is almost always seen in paintings with a Mount Hua pine in the background.But in the…

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