Final diagnosis


Pyrenochaeta lycopersici

Several leaves of this melon stalk began to wilt, turn yellow and wither. <b> <i> Pyrenochaeta lycopersici </i> </b> (corky roots)
This root port is more or less tortuous and superficially suberized. <i> <b> Pyrenochaeta lycopersici </b> </i> (corky roots)
These two roots are surrounded by dark brown corky sleeves, cracked lengthwise in places. <b> <i> Pyrenochaeta lycopersici </i> </b> (corky roots)
Aspect with a binocular magnifying glass of some pycnidia of <i> <b> Pyrenochaeta lycopersici </b> </i> formed on roots. (corky roots)
Pycnidus of <b> <i> Pyrenochaeta lycopersici </i> </b>: brown and globular, it has several brown and septate bristles. (corky roots)