Adult and nymph jassids (Austroasca viridigrisea) suck plant sap and inject toxins. This results in fine dots or spots (stippling) that are white for vegetable jassids. Adults are 3 mm long and a slightly bluish-green. They have a broad rounded head and a tapering body with clear wings extending beyond the abdomen. Their eyes are widely separated and the antennae short. Nymphs are similar in shape but are smaller and are wingless. All summer pulses, including peanuts, and leafy vegetables, carrots, potatoes and tomatoes are susceptible to jassids.