 This disease was discovered in New York dating back to 1884, and was recently found and studied in North Carolina.The disease cycle for "Septoria" "cannabis" is identical to that of "Septoria" "tritici"  or "Septoria" of tomato except for the production of a perithecium instead of a pseudothecium.Being that it is a polycyclic disease, it can asexually produce conidia in a pycnidium which continually inoculates new hosts throughout the growing season, as well as sexually produce ascospores in a perithecium which acts as an overwintering structure.