Wheat Aphid

Scientific name:Macrosiphum Miscanthi (Tak.)
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.
Control measures Spray 375 ml of Dimethoate 30EC or Oxydemeton methyl 25EC or Moncrotophos 36SL in 250 liters of water per ha. Control aphids at ear head stage at economic threshold levels of 5 aphids per ear head. The spray of imidacloprid @ 20 g a.i. per ha initially on border rows and if infestation is severe then in entire field will give good protection against the aphid.