In Lauderdale County, Formosans have been discovered in one structure and two reports of the termite have been associated with crossties. As far as I know, this infestation still exists. There is a good possibility that this species could occur anywhere in the state. If you know an account that has recently installed crossties, be especially wary. There is good evidence to indicate that these timbers have been involved in spreading this species around the southeast.
Farmers begin to grow crops in rows to facilitate weed control.
Potato late blight outbreak in Ireland, England and Belgium, leading to widespread famine. Grape phylloxera introduced into France early 1860's and about 1890 a massive program by the France government converted the French vineyard over to resistant rootstock from the United States. The first commercial spraying machine was developed. At this point, I am going to omit a number of the entries which the Univ. More than 504 insect species are known to be resistant to at least one formulation of insecticide and at least 17 species of insects are resistant to major classes of insecticides.