Proceedings: Animal Sciences

, Volume 98, Issue 5, pp 331–339 | Cite as

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

  • B B Gaikwad
  • G G Bilapate


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.


Field life-tables key mortality factors Achaea janata L. 


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Copyright information

© Indian Academy of Sciences 1989

Authors and Affiliations

  • B B Gaikwad
    • 1
  • G G Bilapate
    • 2
  1. 1.Department of EntomologyMarathwada Agricultural UniversityParbhaniIndia
  2. 2.Oilseeds Research StationLaturIndia

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