Browsing by Author "Wijerathna, M.A.P."
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Item Aphids on vegetables(1994) Wijerathna, M.A.P.; Edirisinghe, J.P.Item A Check List of Aphids and their Host Plants from Sri Lanka(NSF:Colombo; 21p, 1999) Wijerathna, M.A.P.; Edirisinghe, J.P.Item New records of aphids from Sri Lanka(1993) Wijerathna, M.A.P.; Edirisinghe, J.P.Item Preliminary observations on graminaceous aphids (Homoptera: Aphididae) of the Peradeniya University Park(1995) Wijerathna, M.A.P.; Edirisinghe, J.P.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.