Septoria Leaf Spot of Field Hemp (PPFS-AG-H-01)

Septoria leaf spot is the most commonly reported leaf spot disease of field-grown hemp in Kentucky. This fungal leaf disease can rapidly spread throughout fields during periods of extensive rain or high humidity. Under extreme conditions, plants can lose 50% to 90% of leaves in the lower to mid-canopy. In some years, disease can be severe enough that processors reject shipments. No direct biomass or cannabinoid yield losses have been observed.

This new fact sheet presents information on symptoms, signs, cause, disease development, and management. 

Septoria Leaf Spot of Field Hemp (PPFS-AG-H-01) is available online.

For additional publications on plant diseases, visit the UK Plant Pathology Extension Publications webpage.


By Cheryl Kaiser, Plant Pathology Extension Support, and Nicole Gauthier, Plant Pathology Extension Specialist

Posted in Featured Pubs & Videos
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