Historical Impact
Though the causal pathogen is distributed worldwide and can cause crop yield reductions, early blight has never caused wide spread famine or other sudden and major detrimental effects on humanity. The disease is not to be confused with late blight, which caused the Irish potato famine.
Read more about this topic: Alternaria Solani
Famous quotes containing the words historical and/or impact:
“By contrast with history, evolution is an unconscious process. Another, and perhaps a better way of putting it would be to say that evolution is a natural process, history a human one.... Insofar as we treat man as a part of nature—for instance in a biological survey of evolution—we are precisely not treating him as a historical being. As a historically developing being, he is set over against nature, both as a knower and as a doer.”
—Owen Barfield (b. 1898)
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—Ronald Reagan (b. 1911)