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)