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    • Keywords


      Biometrical analysis; Heliothis armigera

    • Abstract


      Measuring the width of the head capsule ofHeliothis armigera Hbn. at different stages of development larvae fall into five well defined group each characteristic of an instar, when reared on alfalfa (Medicago sativa) leaves and sorghum earhead (sorghum vulgare) at a constant temperature of 26 ± 1°C. Przibram’s rule cannot be applied to increase in the linear dimensions of larva in its successive stages. However, variations in the value of the linear progression factor show that Przibrarm’s progression principle is of doubtful significance in the case of this pest.

    • Author Affiliations


      G G Bilapate1 V M Pawar1 A K Raodeo1

      1. Marathwada Agricultural University, Parbhani - 431 402
    • Dates


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