R. H. S. Rajapakse

Potential of four vegetable oils and ten botanical powders for reducing infestation of cowpeas by Callosobruchus maculatus, C. chinesis and C. rhodesianus

R. H. S. Rajapakse · Journal of Stored Products Research · 1997 · 88 citations

Agriculture, Botany, Plant Sciences +11

Effects of spinosad on the heat tolerance and cold tolerance of Sitophilus oryzae L. (Coleoptera: Curculionidae) and Rhyzopertha dominica F. (Coleoptera: Bostrichidae)

L.K.W. Wijayaratne, R. H. S. Rajapakse · Journal of Stored Products Research · 2018 · 31 citations

Life Sciences, Entomology, Plant Sciences +15

The potential of plants and plant products in stored insect pest management

R. H. S. Rajapakse · Journal of Agricultural Sciences – Sri Lanka · 2006 · 30 citations · Full text

Life Sciences, Entomology, Plant Sciences +17

Effect of Host Age, Parasitoid Age and Temperature on Interspecific Competition Between Chelonus Insularis Cresson, Cotesia Marginiventris Cresson and Microplitis Manilae Ashmead

R. H. S. Rajapakse, Van Waddill, T. R. Ashley · International Journal of Tropical Insect Science · 1992 · 22 citations

Life Sciences, Biology, Zoology +17

Effect of five botanicals on oviposition, adult emergence and mortality of Callosobruchus maculatus Fabr. (Coleoptera: Bruchidae) infesting cowpea, Vigna unguiculata L. Walp.

R. H. S. Rajapakse, S. G. J. N. Senanayake, Disna Ratnasekera · Journal of Entomological Research · 1998 · 18 citations

Life Sciences, Botany, Plant Sciences +17