1.   At the time, almost all common corn varieties were closely related, and virtually all were susceptible to the new parasite.

2.   From there, Casagrande expects the new parasites to spread throughout the infected area in about three years, allowing gardeners to enjoy lilies once again.

3.   The gametocytes then produce male and female gametes, and fertilization occurs, eventually producing new parasites that are passed on when the insect bites again.

4.   The clusters burst after a few days and the new parasites invade red blood cells and start another stage of the life cycle.