[1] gives example how simple selection for better use in agriculture gives big problems a few years later when the plant mutates in wild into a nasty pest. Situation is especially sad in poor regions of Russia North where lack of money in local budgets allowed the plant to spread everywhere. Driving there is like watching illustration for "The Day of the Triffids" by John Wyndham [2].

[1] - https://en.m.wikipedia.org/wiki/Heracleum_sosnowskyi

[2] - https://en.m.wikipedia.org/wiki/The_Day_of_the_Triffids