Final diagnosis


Salad septoria (Septoria lactucae)

The lower leaves of this sucrine, a particularly sensitive lettuce, are dotted with angular, brown and necrotic spots. <b><i>Septoria lactucae</i></b> (septoria)
The lower leaves of this lettuce show several rather angular, brown and necrotic lesions. The leaf blade is also chlorotic. <b><i>Septoria lactucae</i></b> (septoria)
Several angular spots, delimited by the veins, light brown, are at the origin of the partial chlorosis of the lamina. <b><i>Septoria lactucae</i></b> (septoria)
Septora-lactucae5
A bouquet of spores is released at the level of the ostiole of a pycnidia of <b><i>Septoria lactucae</i></b> partly immersed in the leaf tissues (100 to 200 µm in diameter). (septoria)
Septoria-lactucae4