• J Sulochana Chetty

      Articles written in Proceedings – Animal Sciences

    • Influence of food plants on the food utilization and chemical composition ofHenosepilachna septima (Coleoptera: coccinellidae)

      G Ganga J Sulochana Chetty R Senthamil Selvi T Manoharan

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      Influence of three food plants,viz Memordica charantia, Luffa acutangula, andTrichosanthus anguina on the food utilization and chemical composition ofHenosepilachna septima has been studied. The rate of conversion and conversion efficiencies were higher inT. anguina fed beetles. The rate of conversion was positively correlated with the protein content of the food plants. The organic constituents ofH. septima specially protein and lipid increased when fed on the different food plants. Greater increase of all the organic constituents occurred when the insect was fed on the nutrient richT. anguina than when fed on other food plants.

    • Effect ofAzadirachta indica andPongamia glabra leaf extracts on food utilization and modulation of efficiency of digestive enzymes inEuproctis fraterna (Lepidoptera: Lymantridae)

      S Sridhar J Sulochana Chetty

      More Details Abstract Fulltext PDF

      The effect of application ofAzadirachta indica andPongamia glabra leaf extracts on food consumption and utilization in fifth instar larvae ofEuproctis fraterna, a serious lepidopterous pest on castor,Ricinus communis, is assessed. Reduction in food consumption byEuproctis fraterna feeding on castor leaves treated with extract ofAzadirachta indica was 11% higher than that recorded for castor leaves treated withPongamia glabra. Consumption, assimilation, production and their rates showed a negative correlation with the concentration of the extracts used.

      The effect of administration of these two leaf extracts on efficiency of the digestive enzymes invertase, amylase and protease ofEuproctis fraterna was also assessed. A reduction in activity of these enzymes with the administration of increasing concentration of extracts was also observed.

      Leaf extracts of neem andPongamia appear to be most efficaceous in controllingEuproctis fraterna especially when they are administrated along with castor leaves in the fifth instar providing a suitable alternative to synthetic pesticides.

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