Rajendram, G.F.Devarajah, F.R.2010-07-062010-07-061990Journal of the National Science Council of Sri Lanka, 18(1):p.79-92https://dl.nsf.gov.lk/handle/1/6745Nilaparvata lugensCyrtorhinus lividipennisBiological controlAgricultureSuvey of some rice insect pests and their predators in three districts of Sri LankaArticle