Final diagnosis


Cladosporium cucumerinum

Numerous more or less necrotic brown spots now cover the lamina which is somewhat deformed. <i> <b> Cladosporium cucumerinum </b> </i>
The wet and cold conditions favored the development of the spots. They are brown, sometimes rather extensive, and haloed a well marked yellow halo. <i> <b> Cladosporium cucumerinum </b> </i>
Irregular, brown and necrotic lesions on melon leaf. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Brown spots, small and necrotic on melon leaf. </b> <i> Cladosporium cucumerinum </i> </b>
Several spots of still limited size, brown, dot and somewhat distort the blade of this melon leaf. A discreet yellow halo sometimes surrounds them. <i> <b> Cladosporium cucumerinum </b> </i>
Grayish spots on melon leaf, brown on the periphery, sometimes angular, surrounded by a yellow halo. <b> <i> Cladosporium cucumerinum </i> </b>
The leaves of this twig show brown nerotic spots while the stem and petioles show some longitudinal canker lesions. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
A necrotic leaf, a few discrete necrotic spots on the other green leaves, longitudinal cankers on the stem and petioles reflect the beginnings of <i> <b> Cladosporium cucumerinum </b> </i> parasitism at the end of this branch of melon.
<i> <b> Cladosporium cucumerinum </b> </i> destroyed the end of this melon twig which also presents a canker, necrotic and longitudinal lesion, covered by a dark green to black mold. (cladosporiosis)
Brown nervous necrosis on melon leaf; an oily exudate can be observed on a young oily and elliptical chancre. <i> <b> Cladosporium cucumerinum </b> </i>
Small beige depressed canker, on a melon stem, in the shape of a "lip" covered with a dark green down in its central part. <i> <b> Cladosporium cucumerinum </b> </i>
<b> <i> Cladosporium cucumerinum </i> </b> is at the origin of these numerous longitudinal canker bursts on the stem and petiole of melon. A dense gray-green down covers the lesions.
Clado11
Small oily lip-shaped spots on young melon fruit. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Clado8
Large canker and corky lesions on young melon fruit. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Brown lip-shaped canker spots with a blacker center. <b> <i> Cladosporium cucumerinum </i> </b>
Depressed spots tend to heal on the periphery; their center is covered by a felting first gray then dark green to black. <i> <b> Cladosporium cucumerinum </b> </i>
More or less corky, elongated spots; the fruiting bodies of the fungus give the center of the spots a dark green to black color. <b> <i> Cladosporium cucumerinum </i> </b>
This young melon fruit is partially covered with canker spots, moist and more or less spore-forming which are responsible for its deformation. <i> <b> Cladosporium cucumerinum </b> </i>
These numerous rather circular spots, greyish and suberized, are sometimes covered by a blackish mold. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Several large corky and cracked spots locally alter this melon fruit. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Clado14
Many corky bursts, rather longitudinal, dot this melon. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Large lesion on superficially suberized fruit and covered in places by blackish mold. <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Water stress caused this melon to burst, affected by numerous corky and spore-forming lesions caused by <i> <b> Cladosporium cucumerinum </b> </i>. Secondary invaders took the opportunity to colonize this fruit.
This melon fruit shows both small spots of Cladosporia located on the left, and larger spots of anthracnose on the right. </b> <i> Cladosporium cucumerinum </i> </b>, <b> <i> Colletotrichum lagenarium </i> </b>
Arrangement of conidia on a conidiophore of <i> <b> Cladosporium cucumerinum </b> </i> (cladosporiosis)
Morphological diversity of <i> <b> Cladosporium cucumerinum </b> </i> spores. (cladospriosis)
The conidia of <i> <b> Cladosporium cucumerinum </b> </i> are oblong, spindle-shaped, aseptic, rarely 1 to 2-septate; they then measure 4.6-5.7 x 16.4-22.5 µm.
The short, dark, branched conidiophores carry the non-septate to bicloisate conidia. <i> <b> Cladosporium cucumerinum </b> </i>
On agar medium, the colonies produce abundant sporulation. <i> <b> Cladosporium cucumerinum </b> </i>