Needle blight of pine (Pseudocercospora pini-densiflorae) is a fungal pathogen. It is a native of Asia and Africa.
M. gibsonii causes a serious needle blight of both exotic and native pines, particularly at the later nursery stage, and has become a major obstacle to production of pine seedlings.
For more information about this plant pest, see the CAPS data sheet and the CABI data sheet.