Articles

Exacum Diseases

Name: Exacum Diseases
SKU: ART-3291

Informational table showing disease name, symptoms, pathogen/cause, and management of Exacum diseases.

Updated:

June 26, 2025

The small lavender flowers of Exacum

Disease	Symptoms	Pathogen/Cause	Management
Basal Stem Rot and Branch Blight	At high temperatures, wounded stems are killed quickly.	Nectria haematocca	Maintain moderate temperatures. Avoid wounding plants.
Botrytis Blight	Stems of established plants rot at the soil line. This may occur just as plants flower, killing the entire plant.	Botrytis cinerea	Heat and ventilate to maintain low humidity. Remove dead and dying tissue from the greenhouse. Apply a fungicide to protect plants.
Pythium Root Rot	Plants wilt, collapse, and die. Roots appear water-soaked, limp, and brown.	Pythium	Use pasteurized potting soil. Discard infected plants.