Fertility Life Tables of <i>Plastanoxus westwoodi</i> (Kieffer) (Hymenoptera: Bethylidae) on <i>Cryptolestes pusillus</i> (Schon.) (Coleoptera: Cucujidae)

  • MM Rahman Institute of Biological Sciences, Rajshahi University, Rajshahi-6205, Bangladesh
  • W Islam Department of Zoology, Mollah Azad Memorial College, Naogaon.
  • KN Ahmed BCSIR Laboratories, Dhaka, Bangladesh
Keywords: Plastanoxus westwoodi, Cryptolestes pusillus, Oviposition, Life table, Biological control

Abstract

Plastanoxus westwoodi is an efficient ectoparasitoid of larvae and pupae of the red flat grain beetle Cryptolestes pusillus. Fertility life tables and effects of host instar on life table parameters of P. westwoodi on C. pusillus were studied in the laboratory. Generally adult females lived for 13-16 days. Oviposition commenced on the 1st day of adult emergence and continued till death or 1-2 days before the death of a parasitoid. The intrinsic rate of natural increase (rm) was found to be 0.2291 per female per day. The net reproductive rate (R0) was 64.07; the innate capacity for increase (rc) was 0.2096. The finite rate of increase (λ) was calculated as 1.4735 per female per day, while corrected generation time (T) was computed as 18.16 days.

Key words: Plastanoxus westwoodi, Cryptolestes pusillus, Oviposition, Life table, Biological control  

DOI:10.3329/jbs.v16i0.3737   

J. bio-sci. 16: 25-28, 2008   

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Rahman, M., Islam, W., & Ahmed, K. (1). Fertility Life Tables of <i>Plastanoxus westwoodi</i> (Kieffer) (Hymenoptera: Bethylidae) on <i>Cryptolestes pusillus</i&gt; (Schon.) (Coleoptera: Cucujidae). Journal of Bio-Science, 16, 25-28. https://doi.org/10.3329/jbs.v16i0.3737
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