Distribution of SCN

Map of the distribution of SCN in Iowa

Known distribution of SCN in Iowa

Updated Map of Iowa with dates of SCN arrival

Date of discovery of SCN in each Iowa county.

.gif of the progression of SCN infestations through the years

Animation showing the spread of SCN from 1954-2014

Map of the US showing SCN infestations in 1957

Known SCN distribution in 1957

Map of the US showing SCN infestations in 1973

Known SCN distribution in 1973

Map of the US showing SCN infestations in 1980

Known SCN distribution in 1980

Map of the US showing SCN infestations in 1980

Known SCN distribution in 1990

Map of the US showing SCN infestations in 2001

Known SCN distribution in 2001

Map of the US showing SCN infestations in 2014

Known SCN distribution in 2014