Tropical Agricultural Research

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Predatory Coccinellids (Coleoptera : Cocinellidae ) of vegetable insect pests : a survey in mid country of Sri Lanka
(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2007) Mayadunnage, S.; Wijayagunasekara, H.N.P.; Hemachandra, K.S.; Nugaliyadde, L.
Predatory insects of pest insects in a vegetable eco system of the mid country region of Sri Lanka
(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2008) Mayadunnage, S.; Wijayagunasekara, H.N.P.; Hemachandra, K.S.; Nugaliyadda, L.