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International Journal of Tropical Insect Science

, Volume 4, Issue 4, pp 319–325 | Cite as

The Rearing and Biology of the Mahogany Shoot Borer Hypsipyla Robusta Moore (Lepidoptera: Pyralidae) on an Artificial Medium

  • S. K. N. Atuahene
  • D. Souto
Article

Abstract

—Three consecutive generations of Hypsipyla robusta Moore (Lepidoptera: Pyralidae) were reared on the McMorran-Grisdale Diet (MGD) medium. Mortality rates among the older larvae were consistently low (less than 1.0%) but high (up to 50%) in the first instar stage which was due primarily to escapism and non-feeding. Developmental period from egg to adult was not adversely affected by the artificial diet and ranged between 29 and 41 days. However, a comparison of numbers of larval instars and pupal sizes indicated that the nutritional quality of the MGD and natural food sources differed appreciably. A longterm study to evaluate the usefulness of the MGD for planned mass rearing programmes of H robusta is recommended.

Key Words

Hypsipyla robusta Moore artificial medium rearing procedure fertility and egg deposition larval instars parasitism mortality 

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Copyright information

© ICIPE 1983

Authors and Affiliations

  • S. K. N. Atuahene
    • 1
  • D. Souto
    • 1
  1. 1.Forest Products Research Institute, UniversityKumasiGhana

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