Life table studies and intrinsic rate of increase ofAgathis Unicolorata (Shenefelt) (Hymenoptera: Braconidae)

  • R D Chundurwar


In the laboratory studies,Agathis unicolorata (Shenefelt) larval parasite oviposits in the body cavity of the host larvaeP. operculella where parasite larva develops. The mature larva emerges from the host killing it in the process and spins a cocoon. The longevity of ovipositing females averaged 10 days (maximum 14). The mated parasite had on average ovipositional period of 8·5 days (maximum 12) and produced an average of 107·7 adult progeny of the both sexes. The sex-ratio male: female of their progeny averaged 2·1:1. The rate of multiplication (R 0) was 34·56 times in mean generation time (T) 24·602. The intrinsic rate of increase (r m ) ofA. unicolorata population under laboratory conditions was 0·144 per female per day.


Agathis unicolorata life table studies fecundity 


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Copyright information

© Indian Academy of Sciences 1973

Authors and Affiliations

  • R D Chundurwar
    • 1
    • 2
  1. 1.Sorghum Research StationMarathwada Agricultural UniversityParbhani
  2. 2.Commonwealth Institute of Biological ControlBangalore

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