Macrosiphum miscanthi
Description: Wheat aphid attacks wheat, barley, oats, etc., and is widely distributed in India. The aphid is a soft-bodied, lime-green colored insect with a darker green stripe on its back. The females being viviparous give birth to young nymphs which undergo a number of moults and become adults.
Nature of damage These plant lice suck sap from the ears and tender leaves, and the decrease yield of the crop. Like other aphids, the nymphs and adults suck the sap from plants particularly from their ears. The damage is particularly severe in years of cold and cloudy weather. They feed by inserting their needlelike mouthparts into the plant and sucking plant juices.