Planting sugarcane white leaf away from the other convert cane 1 kilometers or more can stump has 3-4 stump by the white leaf disease of less than 1% even detect the disease in sugarcane planting.(< 5%) can 3-4 propagation model. The source of the plague (%) 100 sugarcane leaf disease, white only slightly (< 1.0%), but found the white leaf severe (100%) in the sugarcane cutting stems to grow, and in ratoon cane of the mother.