P. J. Edward George ¹, R. Seenivasagan ², G. Karuppasamy ²

Affiliations
1 Entomology Research Unit, St.Xavier's College, Palayankottai 627 002, Tamil Nadu, IN
2 Entomology Research Institute, Loyola College, Chennai 600 034, Tamil Nadu, IN

Abstract

The life table studies on Sycancus collaris Fabricius (Heteroptera: Reduviidae) under laboratory conditions revealed that the net reproductive rate (R₀) of the species was 30.46 female eggs/female. The true intrinsic rate of natural increase (r_m) was 0.066. The population multiplied 1.59 times every week and the time taken for the doubling of predator was 10.56 days. The total nymphal duration was 49.3±1.95 days. The life span of females was more (45.17±1.83 days) than males (31.83±2.48 days).

Keywords

Development, Intrinsic Rate of Increase, Life Table, Netreproductive Rate, Spodoptera litura, Sycanus collaris.

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