Journal of Biological Control

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Biology and Life Table Studies of Apanteles cypris Nixon (Hymenoptera: Braconidae), a Larval Parasitoid of Cnaphalocrocis medinalis (Guenee)


Affiliations
1 Department of Entomology, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar 751 003, India
 

The egg-larval and pupal periods of Apanteles cypris Nixon (Hymenoptera: Braconidae), a larval parasitoid of Cnaphalocrocis medina lis (Guenee) were 0.90±0.72 and 3.70±0.73 days, respectively. Longevity of male and female were 4.1±0.71 and 3.95±0.82 days, respectively. Male:female ratio was 1: 1.8. Life table data of the parasitoid indicated that the ovipositing females lived for maximum six days and they increased their population at the rate of 30.97 per generation (Ro) with mean generation time(Tc) of 14.01 days. The intrinsic rate of natural increase (rm) was 0.249 and the finite rate of increase (λ) was 1.282 females/female/day.

Keywords

Apanteles cypris, Biology, Life Table, Intrinsic Rate of Increase, Cnaphalocrocis medinalis.
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  • Biology and Life Table Studies of Apanteles cypris Nixon (Hymenoptera: Braconidae), a Larval Parasitoid of Cnaphalocrocis medinalis (Guenee)

Abstract Views: 216  |  PDF Views: 105

Authors

B. K. Mishra
Department of Entomology, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar 751 003, India
B. Senapati
Department of Entomology, College of Agriculture, Orissa University of Agriculture and Technology, Bhubaneswar 751 003, India

Abstract


The egg-larval and pupal periods of Apanteles cypris Nixon (Hymenoptera: Braconidae), a larval parasitoid of Cnaphalocrocis medina lis (Guenee) were 0.90±0.72 and 3.70±0.73 days, respectively. Longevity of male and female were 4.1±0.71 and 3.95±0.82 days, respectively. Male:female ratio was 1: 1.8. Life table data of the parasitoid indicated that the ovipositing females lived for maximum six days and they increased their population at the rate of 30.97 per generation (Ro) with mean generation time(Tc) of 14.01 days. The intrinsic rate of natural increase (rm) was 0.249 and the finite rate of increase (λ) was 1.282 females/female/day.

Keywords


Apanteles cypris, Biology, Life Table, Intrinsic Rate of Increase, Cnaphalocrocis medinalis.