Final diagnosis


Squash mosaic virus (SqMV)

Patchy discolorations are already visible on the cotyledons of this melon seedling, reflecting contamination of the seed.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
The first leaf of this melon seedling shows a marked banding vein.  The lamina is also deformed, more cut at the periphery and blistered. <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
Melon seedling with discolored interveinal tissues of the first leaf;  this shows a marked vein banding.  This virose seedling comes from a contaminated seed.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
The young leaves of this plant show a peculiar discoloration of the blade, localized between the veins and called by the Anglo-Saxons vein banding.  <b> Squash mosaic virus </b> (Squash mosaic virus, SqMV)
Example of symptoms of vein banding on melon leaf.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
Example of symptoms of vein banding on melon leaf.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
An interveinal discoloration of the limbus gradually sets in, only narrow areas near the veins remain green and are the origin of the name "vein banding".  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
Several leaves of this melon stalk are narrower, lanceolate and somewhat mosaic.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
This lanceolate leaf has taken on the appearance of an oak leaf;  it also presents a rather marked mosaic.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
Very marked vein banding also affecting the secondary veins.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)
These 3 fruits affected by the <b> Squash mosaic virus </b> show a heterogeneous color, alternating light green and darker green areas: symptom called mosaic.  (<i> Squash mosaic virus </i>, SqMV)
Very marked green mosaic on melon fruit.  <b> Squash mosaic virus </b> (<i> Squash mosaic virus </i>, SqMV)