virus de la mosaïque de la luzerne

OBS: Symptômes. Taches jaunes sur le bord des feuilles [et] plages jaunâtres plus importantes sur vieilles feuilles.

OBS: [A plant virus] which has a broad host range, multiplies to high concentration, induces only mild symptoms [and is] not transmitted to invertebrates ...
OBS: AMV symptoms vary from light, and almost annoticeable, to severe, causing plants to die, due to the diversity of strains of the virus, the cultivar and environmental conditions... AMV causes an interveinal light green or yellow mottle on the leaves and a stunting of the plant.