Irish potato famine mystery solved after 168 years Scientists…

Irish potato famine mystery solved after 168 years

Scientists believe they have finally identified the pathogen that caused the Irish potato famine. BBC News reports a research team led by The Sainsbury Laboratory in Norwich, England, used dried leaf cuttings — some of which are nearly 170 years old — to reconstruct the spread of the HERB-1 strain of Phytophthora infestans, a fungal disease that came to Ireland via Mexico in 1845. The disease destroyed potato crops and caused the deaths of a million people.

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