• Field life-tables and key mortality factors ofAchaea janata Linn on castor

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      https://www.ias.ac.in/article/fulltext/anml/098/05/0331-0339

    • Keywords

       

      Field life-tables; key mortality factors; Achaea janata L.

    • Abstract

       

      Field life-tables and key mortality factors of castor semilooperAchaea janata L. were studied on castor for the year 1985–86 and 1986–87. There were 4 regular overlapping generations during both the years. The parasitization ofAchaea janata larvae in early instars (I–III instar) by parasiteMicroplitis maculipennis (Sziepligetis) was 1·34, 4·41, 22·02 and 43·70% in first, second, third and fourth generation respectively during 1985–86. Similarly, the parasitization by same parasite was 44·12, 61·46 and 65·55% during second, third and fourth generation respectively in the year 1986–87. Key mortality factors and separate budget for each generations were prepared.

    • Author Affiliations

       

      B B Gaikwad1 G G Bilapate2

      1. Department of Entomology, Marathwada Agricultural University, Parbhani - 431 402, India
      2. Oilseeds Research Station, Latur - 413 512, India
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