Stagonosporopsis cucurbitacearum Cucumis melo L. (Fr) Aveskkamp, Gruyter, Verkley & Crous, Stud Melón, Meló Didymellaceae, Pleosporales, Dothideomycetes Basionimo Sphaeria cucurbitacearum SYMPTOMS The disease is known as black stem rot or gummy canker, due to the mass of pseudothecia (sexually reproducing fruiting bodies) and pycnidia (asexually reproducing fruiting bodies) that develop in the lesions and […]
Leptosphaerulina trifolii
Leptosphaerulina trifolii Stenotaphrum secundatum (Rostr.) Petrak Grama, Gram Basionimo Sphaerulina trifolii SYMPTOMS The initial symptom of the disease is yellowing of the leaf tips, the affected area turns from yellow to brown and spreads into the leaf sheath. The blades become necrotic and wither, leading to the death of large areas of grass. Small […]
BLACK SPOT ON ROSE BUSHES
Diplocarpon rosae Rosa chinensis (Lib.) F.A. Wolf Rosal, Roser Drepanopezizaceae, Helotiales; Leotiomycetes Basionimo Asteroma rosae Lib. SINTOMAS D. rosae puede distinguirse de otras especies relacionadas por su especificidad en el huésped, el rosal al que está limitado. Black spot is a very important disease of roses. It starts on the surface of the leaves as […]
Urban Sardiniella
Urban Sardiniella Celtis australis Linaldeddu, Alves & Philips Almez, Lledoner Botryosphaeriaceae, Botryosphaeriales, Dothideomycetes SYMPTOMS Chlorosis of the leaves and leaf dwarfing are the first noticeable symptoms on the tree, followed by leaf drop showing a regressive death of the leaves young stems and adult branches. At first glance, the difference between the affected and healthy […]