MICR 3220 Lecture 16: Lecture 16
15 Jan 2019
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Wednesday october 17 t h lecture 16. Potatoes (continued: the disease did not come across the atlantic because the potatoes would have rotted in the ship and were gone by the time they got to. Atlantic sea coast (nyc and philadelphia: eventually the disease spread across all of north america. In britain, after 1843/1844 some of these potatoes from the united states. Canada that were infected were brought over to europe. The major source were major ports in belgium (rotterdam). By october, the disease was limited by the period of time the potatoes were being grown. In 1845 weather conditions were favorable for late blight (it was a cool and wet year) plus there was a very high density of potatoes being grown here. Late blight is an exotic pathogen so there was no natural selection for late blight. Thus, these potatoes are exceptionally susceptible to late blight.
