Initially, a single white or cream line parallel to the midrib occurs, which can be seen from either side of the blade. Later, several straight white to light green to yellow stripes develops parallel to the midrib develop extending along the entire leaf length, but rarely onto the upper portion of the leaf sheath. The stripe wide ranges from narrow pin stripe to as broad as the leaf. A mottled pattern of normal or light green dot, spot, streak or patch islands may develop on a white background, varying in size and shape. If there are many green islands, the leaves will look green. As the disease develops, the plant vigour decreases. Others symptoms are stunted stalks, absence of side shoots on the upper part of infected stalks and abnormal tillering