Peanut Mottle Virus (PMoV) was isolated from Lentil cvs. Giza51. The infected indicator plants featured severe mosaic on Lentil cv. Giza51, mottling on cv.Giza9, mild mottle on cv. Giza 4, yellow mild mottling on cv.  Giza370. Seed transmission tests of PMoV confirmed of the virus transmission through Lentil seeds. Peanut Mottle Virus was detected in the testas, cotyledons and embryo dissected from seeds of each Lentil cultivates. Electron microscopy of PMoV showed virus particles aggregates and degenerated mitochondria in cytoplasm of lentil leaf cells infected with PMoV. Effect of environmental factors and populations of insects on virus infection.