Adult male is green in colour, while female is green with a brown margin. Eggs are blue cigar shaped, laid under the glumes or into the middle of florets. Nymphs are slender green in colour.
Nymphs and adult suck the juice from within the grains when they are in the milky stage, grains shrink and turn black in colour and ill filled (or) chaffy and presence of large number of nymphs and adults are seen on the ear head.
Assassin bugs and lygaeid bugs prey on ear head bugs.