Final diagnosis


Fumagine

During an outbreak of aphids, the significant development of sooty mold gradually causes the plant to die back.  Some leaves have turned yellow and dried out.  <b> Fumagine </b> (sooty mold)
A blackish mold more or less partially covers these melon leaves.  Numerous white moults, exuviae also dot the limbus.  <b> Fumagine </b> (sooty mold)
In addition to sooty mold, many exuviae are visible on the stem of this melon stalk.  <b> Fumagine </b> (sooty mold)
<b> Whiteflies </b> as well as <b> aphids </b> produce honeydew that is colonized by a dark green to blackish mold: <b> sooty mold </b>.