Browsing Science by Author "Amarasinghe, L.D."

An integrated approach to the management of rice root knot nematode, Meloidogyne graminicolain Sri Lanka

Amarasinghe, L.D. (Journal of Science of the University of Kelaniya, Sri Lanka, 2011)

This study was carried out to design tools for integrated management of root knot nematode, Meloidogyne graminicola, in rice in Sri Lanka. Rice varieties namely, At5, At353, Bg304, Bg305, Bg359, Bg450, Bg94-1, Bg379-2, ...

Arthropod diversity in four different ecosystems in the Mid Country Wet Zone of Sri Lanka

Weerathunga, W.A.M.T.; Athapaththu, A.M.G.K.; Amarasinghe, L.D. (Department of Zoology and Environmental Management, University of Kelaniya, Sri Lanka, 2017)

Arthropods contribute significantly to biodiversity of natural environments. The present study was done to determine the diversity of arthropods in four ecosystems with different vegetation. Vegetation surrounding an aquatic ...

Clonal susceptibility and population dynamics of Tea red spider mite, Oligonychus coffeae Nietner, (Acarina:Tetranichidae)

Thirugnanasuntharan, K.; Amarasinghe, L.D. (Proceedings of the 45th Annual sessions of the Sri Lanka Association for the Advancement of Science, 1989)

Clonal susceptibility and population dynamics of tea red spider mite, Oligonychus coffeae, Nietner (Acarina: Tetranychidae) under laboratory conditions

Thirugnanasuntharan, K.; Amarasinghe, L.D. (Sri Lanka Journal of Tea Science, 1990)

Comparative Effect of Parasitism of Ciliated Protists Associated with Selected Vector Mosquito Larvae in Selected Rice Field Habitats in Ganewatte, Kurunegala District, Sri Lanka

Wijesinghe, S.; Amarasinghe, L.D. (Institute of Biology Sri Lanka, 2021-09)

Mosquito breeding sites provide habitats for diversifying naturally occurring microbiota and favour different types of interactions including parasitism. This study was carried out to determine the natural occurrence of ...

Comparative study on larvicidal activity of green synthesized silver nanoparticles and Annona glabra (Annonaceae) aqueous extract to control Aedes aegypti and Aedes albopictus (Diptera: Culicidae)

Amarasinghe, L.D.; Wickramarachchi, P.A.S.R.; Aberathna, A.A.A.U.; Sithara, W.S.; De Silva, C.R. (Heliyon 6, 2020)

The present study reports mosquito larvicidal potential of green synthesized silver nanoparticles by using Annona glabra leaves (An-AgNPs). Synthesized An-AgNPs were characterized by Ultraviolet-Visible spectroscopy (UVVIS), ...

Contarinia maculipennis as an emerging threat to Dendrobium in Sri Lanka - A case study.

Dias, M.A.; Amarasinghe, L.D.; Jayalath, W.G.H.; Attanayake, R.N. (International Research Symposium on Pure and Applied Sciences, 2017 Faculty of Science, University of Kelaniya, Sri Lanka., 2017)

Blossom midge, Contarinia maculipennis which belongs to Order Diptera: Family Cecidomyiidae is considered as one of the major threat to ornamental and several crop plant species due to its wide host range. For the first ...

Dengue vector mosquito surveillance in Kelaniya University premises

Wadduwage; Amarasinghe, L.D. (Proceedings of the 1st Annual Research Symposium of the Rajarata University of Sri Lanka, 2010)

Density and diversity of mosquito larvae associated with rice field and marshland habitats in two climatically different areas in Sri Lanka

Amarasinghe, L.D.; Weerakkodi, W.G.I.S. (International Journal of Entomological Research, 2014)

Rice field and marshland habitats have significant influence on production of mosquito larval populations including vector mosquitoes and hence the disease transmission. Study revealed that mosquito larval density in rice ...

Diversity and abundance of vector mosquitoes in Wanawasala area of Kelaniya in Sri Lanka and some factors affecting their abundance and distribution

Dalpadado, C.P.R.D.; Amarasinghe, L.D. (Institute of Biology, Sri Lanka, 2012)

Diversity of midgut bacteria in larvae and females of Aedes aegypti and Aedes albopictus from Gampaha District, Sri Lanka

Ranasinghe, K.; Gunathilaka, N.; Amarasinghe, L.D.; Rodrigo, W.; Udayanga, L. (Parasites & Vectors volume 14, 2021)

Abstract Background: The midgut microbiota of mosquitoes maintain basal immune activity and immune priming. In recent years, scientists have focused on the use of microbial communities for vector control interventions. ...

The ecology of a montane grassland in Sri Lanka. VII. Biomass production

Amarasinghe, L.D.; Pemadasa, M.A. (Ceylon Journal of Science, Biological Sciences, 1983)

Biomass accumulation was studied monthly on 2 montane grasslands in Sri Lanka at 900 m and 560 m alt. from June 1976 to May 1977. The upper site was a dense sward dominated by Cymbopogon nardus (65.4%), Themeda tremula ...

Effect of cinnamon oils on the root-knot nematode Meloidogyne graminicola in rice seedlings and young rice plants

Amarasinghe, L.D.; Wijesinghe, W.K.A.G.A. (Institute of Biology, Sri Lanka, 2011)

Effect of rainfall and temperature on liver and rumen fluke infections of bovines in Sri Lanka

Amarasinghe, L.D.; Kumara, H.L.N.N. (International Journal of Biological and Chemical Sciences, 2007)

The effect of soil amendments and neem extract with and without NPK fertilization on the rice root-knot nematode, Meloidogyne graminicola in young rice plants

Kariyapperuma, K.A.D.P.S.; Amarasinghe, L.D. (Sri Lanka Association for the Advancement of Science, 2005)

Efficacy of entomopathogenic nematodes to control up-country live wood termite Postelectrotermes militaris

Amarasinghe, L.D.; Hominick, W.M. (Sri Lanka Journal of Tea Science, 1993)

Efficacy of essential oils from bark and leaf of Cinnamomum zeylanicum on root knot nematode, Meloidogyne graminicola in rice seedlings and young rice plants

Amarasinghe, L.D.; Wijesinghe, W.K.A.G.A.; Jayawardhane, B.K. (Journal of Science of the University of Kelaniya, Sri Lanka, 2011)

The present study was conducted to evaluate the efficacy of essential oils from leaf and bark of cinnamon, Cinnamomum zeylanicum in controlling Meloidogyne graminicola and their effects on rice seedlings and young rice ...

Entomopathogenic nematodes (Rhabditida: Heterorhabditidae and Steinernematidae) in Sri Lanka as bio-control agents

Amarasinghe, L.D.; Hominick, W.M. (Sri Lanka Journal of Tea Science, 1993)

Entomopathogenic nematodes from the coastal belt of Sri Lanka and their efficacy in controlling termites

Amarasinghe, L.D. (Pest Technology, 2008)

Evaluation of the effects of composted broiler litter enriched with Trichoderma viride in management of Meloidogyne incognita (Kofoid and White) in spinach (Spinacea oleracea)

Amarasinghe, L.D.; Madurusinghe, T.N. (South Asian Journal of Experimental Biology, 2012)

Browsing Science by Author "Amarasinghe, L.D."

Browsing Science by Author "Amarasinghe, L.D."

Search Digital Repository

Browse

All of DSpace

This Community

My Account