What is a disease cycle? What makes wheat stem rust such a complicated, invincible disease? Tune in to this episode of Disease Dirt to find out.

Sources: https://www.apsnet.org/edcenter/intropp/lessons/fungi/Basidiomycetes/Pages/StemRust.aspx

http://www.apsnet.org/publications/apsnetfeatures/Pages/Barberry.aspx