Final diagnosis


Phytotoxicities

An untoward application of a herbicide on this vine is at the origin of the stunted, bushy aspect of its vegetation. <b> Phytotoxicity </b>
All the leaves of this twig remained small and more or less deformed. <b> Phytotoxicity </b>
The growth of this young branch is rather slowed down; its leaves are very distorted and blistered. <b> Phytotoxicity </b>
This vine leaf has 'indentations' around its periphery: Phytotoxicity
Leaf deformation linked to <b> Phytotoxicity </b> is expressed especially at the periphery of the leaf blade of this vine leaf. In places, the latter presents growths modifying its shape.
The veins of this vine leaf are much lighter and the edges of the leaf show deformations: <b> Phytotoxicity </b>
The development of this young leaf is particularly modified. It is narrower, abnormally cut and blistered. <b> Phytotoxicity </b>
On this leaf, the yellowing resulting from <b> Phytotoxicity </b> occurs occasionally at the level of its veins.
The flag symptom is characteristic of <i> <b> Erysiphe necator </b> </i>: the internodes are shortened and the leaves are curled up.
Several spots with yellow areas, rather located on the periphery of the blade, are clearly visible on this leaf. <b> Phytotoxicity </b>
The leaves show discolorations of light color around its periphery. We can observe a necrosis of the veins: <b> Phytotoxicity </b>
Many leaves are affected: photosynthesis no longer takes place, they are all more or less discolored. <b> Phytotoxicity </b>
A large strip of tissue around the periphery of this leaf turned white after gradually chlorinating. Note that the tissues located near a few main veins begin to necrosis. <b> Phytotoxicity </b>
Young vine leaves are deformed: <b> Phytotoxicity to copper </b>
Copper can be phytotoxic on vines under certain conditions. This was the case on this sheet which is now superficially burnt, deformed, and which has taken on a tan tint in the affected areas. <b> Copper phytotoxicity </b>
The yellowing portions of veins became necrotic, resulting in deformation of the blade during development. <b> Phytotoxicity </b>
Beige patches spread on the surface of the leaf: <b> phytotoxicity </b>