Proceedings: Animal Sciences

, Volume 96, Issue 3, pp 195–206 | Cite as

Nutritional value of malvaceous seeds and related life-table analysis in terms of feeding and reproductive indices in the dusky cotton bug,Oxycarenus laetus Kirby (Hemiptera: Lygaeidae)



Seed host diversity and subsequent impact of the nutritive value of different malvaceous host plant seeds determined the life-history consequences and the seed-use pattern of the dusky cotton bug,Oxycarenus laetus Kirby. Significant differences were observed in the feeding, food utilization and reproductive success of the bugs depending upon the type of seed food utilized as well as its biochemical profile particularly proteins, nitrogen, carbohydrates, phenols and lipids. Analysis of the different life-table statistics such as developmental time, maturation time, net reproductive rate (R o ), and the intrinsic rate of increase (r m ) revealed seeds of crop plants to be better utilized when compared to malvaceous weed hosts.


Nutritional value of seeds life-table analysis feeding and reproductive indices dusky cotton bug Oxycarenus laetus 


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Copyright information

© Indian Academy of Sciences 1987

Authors and Affiliations

  • K Raman
    • 1
  1. 1.Entomology Research InstituteLoyola CollegeMadrasIndia

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