Madurangi, S.A.P.; Samarasinghe, G.; Senanayake, S.G.J.N.; Hemachandra, R.V.; Ratnasekera, D.
(Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2008-10-23)
The Brown Plant Hopper (BPH), Nilaparvata lugens is one of the most serious rice
pests in Sri Lanka. About 5-10% of cultivated rice lands are affected due to BPH
damage. Due to several drawbacks associated with chemical ...