• Age-correlated tissue preferences ofHeliothis armigera (Hubner) andSpodoptera litura (F) with special reference to phenolic substances

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    • Keywords


      Spodoptera litura ; Heliothis armigera ; age-correlated tissue preferences; non-nutritional phenolic substances

    • Abstract


      Age correlated tissue preferences ofHeliothis armigera (Hubner) andSpodoptera litura (F) were investigated onGossypium hirsutum, Abelmoschus esculentus, Ricinus communis and Cajanus cajan. The food utilization and reproductive potential of these two noctuids are correlated with the host plant nutritional and non-nutritional phenolic substances, separated and characterised through thin-layer chromatography and UV spectra. The non-nutritional phenolic substances such as phloroglucinol, resorcinol, protocatechuic acid, gallic acid, pyrogallol and vanillic acid tend to vary within the host plant parts as well as in different host plant species. Keywords.Spodoptera litura; Heliothis armigera; age-correlated tissue preferences; nonnutritional phenolic substances.

    • Author Affiliations


      R S Annadurai1 S Murugesan1 R Senrayan1

      1. Entomology Research Institute, Loyola College, Madras - 600 034, India
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