This article provides an overview of the conifer disease caused by Diplodia sapinea, a fungal pathogen responsible for shoot blight, cankers, and blue-stain in many pine species and other conifers. The pathogen typically infects weakened or stressed trees but can also affect healthy hosts under favorable conditions. Symptoms include browning of needles, dieback of shoots, resin exudation, and stem lesions. The text highlights the biology of the fungus, its infection pathways, environmental factors promoting outbreaks, and the associated impacts on forest health. Management focuses on reducing tree stress, removing infected material, and implementing preventive silvicultural practices.
Keywords: Diplodia sapinea, Conifer disease, Shoot blight, Fungal pathogen, Forest health
Note: The original text is in French
