Browsing Chemistry by Issue Date

Repellant Activity of Alpinia calcarata Volatiles for Periplanata americana (American Cockroaches)

Paranagama, P.A.; Ekanayake, E.M.K.S. (Asian Symposium on Medicinal Plants, Species and Other Natural Products, 2000)

Effect of azadirachtin on midgut enzymes of cockroaches (Periplanata americana)

Paranagama, P.A.; Kodikara, K.A.B.C.H.; Nishantha, H.M.I.; Mubarak, A.M. (Sri Lanka Assiciation for the Advancement of Science (SLAAS), 2000)

Dilution wave and negative-order crystallization kinetics of chain molecules

Ungar, G.; Mandal, P.K.; Higgs, P.G.; de Silva, D.S.M.; Boda, E.; Chen, C.M. (Physical Review Letters, 2000)

We show that the crystal growth rate of a very long-chain n-alkane C198H398 from solution can decrease with increasing supersaturation and follow strongly negative order kinetics. The experimental behavior can be well ...

Insecticidal and repellent activity of volatile constituents of neem leaf (Azadirachta indica) against Callosobruchus maculatus(L.) inhabiting stored cowpea

Paranagama, P.A.; Adhikari, A.A.C.K.; Abeywickrama, K.P.; Bandara, K.A.N.P. (Sri Lanka Association for the Advancement of Science, 2001)

Bioactivity of the essential oil of Cymbopogon citratus (Lemongrass) on Sitophllus oryzae(L) (Coleoptera : Curcuolionidae) [Rice Weewil]

Paranagama, P.A.; Jayaratne, K.H.T.; Nugeliyadde, L.; Abeywickrama, K.P. (Sri Lanka Association for the Advancement of Science (SLAAS), 2001)

Bioactivity of the essential oil of lemongrass, (Cymbopogon citratus) against rice weevil-Sitophilus oryzae(L.) and grain moth-Sitorroga cerealella (Olivier)

Jayaratne, K.H.T.; Paranagama, P.A.; Nugeliyadde, L.; Abeywickrama, K.P. (Annual Research Symposium, Faculty of Graduate Studies, University of Kelaniya, 2001)

Effect of volatile constituents of Curry leaf, Murraya koenigii on cowpea seed bruchid, Callosobruchu smaculatus (F.) in stored cowpea

Adhikari, A.A.C.K.; Paranagama, P.A.; Bandara, K.A.N.P.; Abeywickrama, K.P. (University of Kelaniya, 2001)

Toxicity and repellency of essential oils from four medicinal plants against stored rice weevil Sitophilus oryzae

Paranagama, P.A.; Jayaratne, K.H.T.; Nugeliyadde, L.; Abeywickrama, K.P. (Sustaining the Natural Resource Based in Rice Cropping Systems, 2002)

Toxic effect of Volatiles from five plants on Sitotroga cerealella (Oliver) (Lepidoptera: Gelechiidae) in stored paddy

Paranagama, P.A.; Jayaratne, K.H.T.; Nugaliyadde, L.; Abeywickrama, K.P. (Sri Lanka Association for the Advancement of Science, 2002)

Assessment of the levels of three selected heavy metals in black tiger shrimp, Penaeus monodon cultured in the North western province of Sri Lanka

Senadheera, S.P.S.D.; Pathiratne, K.A.S. (Sri Lanka Association for Fisheries and Aquatic Resources, 2002)

Effect of the essential oil of Cymbopogon nardus on Aspergillus flavus Link isolated from Sri Lankan paddy and rice

Paranagama, P.A.; Abeysekera, K.H.T.; Nugeliyadde, L.; Abeywickrama, K.P. (University of Kelaniya, 2002)

Analysis of Volatile Oil inthe Leaves of Murraya koenigii

Paranagama, P.A.; Wimalasena, S.; Jayatilake, G.S.; Jayawardena, A.L.; Senanayake, U.M.; Mubarak, A.M. (Trop. Med. Plants, 2002)

Behavioural Studies of Cowpea Seed Bruchid, Callosobruchus maculatus (F.) Against Volatile Leaf Extracts of Lemongrass, Neem and Curry Leaf

Adhikari, A.A.C.K.; Paranagama, P.A.; Abeywickrama, K.P.; Bandara, K.A.N.P. (Tropical Agricultural Research, 2002)

Electroantennograme and behavioral responses of male and female Callosobruchus maculatus (F.) to essential oil of lemongrass Cymbopogon citratus (Stapf)

Paranagama, P.A.; Adhikari, A.A.C.K.; Abeywickrama, K.P.; Bandara, K.A.N.P. (Annual Research Symposium, 2002)

Bioactivity of leaf volatiles of Azadirachta indica A. and Murraya koenigii (spreng) against Sitophilus orysae (L.) (Coleoptera: Curculionidae)

Paranagama, P.A.; Abeysekera, K.H.T.; Nugeliyadde, L.; Abeywickrama, K.P. (Tropical Agricultural Research and Extension, 2002)

Inhibition of Aspergillus flavus Link and Anatoxin Formation by Essential Oils of Cinnamomum zeylanicum (L.) and Cymbopogon nardus Rendle

Jayaratne, K.H.T.; Paranagama, P.A.; Abeywickrama, K.P.; Nugaliyadde, L. (Tropical Agricultural Research, 2002)

K.H.T. Jayaratne, P.A. Paranagama, K.P. Abeywickrama1 and L. Nugaliyadde2

The efficacy of methanol extracts of leaves of lemongrass- Cymbopogon citratus (DC) Stapf and Curry leaf – Murraya koinigii Spreng on Callosobruchus maculatus

Paranagama, P.A.; Adhikari, A.A.C.K.; Abeywickrama, K.P.; Bandara, K.A.N.P. (Proceedings of Sri Lanka Association of Advancement of Science, 2002)

Toxicity and repellant activity of Cymbopogon citratus (D.C.) Stapf. and Murraya koenigii Sprang. against Collosobruchus maculatus (F.) (Coleoptera; Bruchidae)

Paranagama, P.A.; Adhikari, A.A.C.K.; Abeywickrama, K.P.; Bandara, K.A.N.P. (Tropical Agriculture Research and Extension, 2002)

Fungicidal activity of essential oils of Cinnamomum zeylanicum (L.) and Syzygium aromaticum (L.) Merr et LM Perry against crown rot and anthracnose pathogens isolated from banana

Ranasinghe, L.; Jayawardena, B.; Abeywickrama, K. (Blackwell Science Ltd., 2002)

Aims: To develop a post-harvest treatment system against post-harvest fungal pathogens of banana using natural products. Methods and Results:Colletotrichum musae was isolated and identified as the causative agent responsible ...

Bioactivity of leaf volatiles of Azadirachta indica A. Juss. and Murraya koenigii Spreng. against Sitophilus oryzae L.(Coleoptera: Curculionidae)

Paranagama, P.A.; Abeysekera, K.H.T.; Nugaliyadde, L.; Abeywickrama, K. (National Science Foundation of Sri Lanka., 2002)

Repellent activity, fumigant and contact toxicities of leaf volatiles of Azadirachta indica A. Juss. and Murraya koengii Spreng. were evaluated against Sitophilus oryzae L. In the dual choice repellency test with A indica ...

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