Preliminary observations on graminaceous aphids (Homoptera: Aphididae) of the Peradeniya University Park

Abstract

Fourty two grass species, mostly weeds, found within about 70 heactares of the Peradeniya University Park, were examined for aphids.Eight species of aphids were recorded from 21 grass species in the study area. Two of the aphid species collected, Hysteroneura setariae (Thomas) and Rhopalosiphum Padi (L.) had not bee previously recorded from Sri Lanka.