Journal of Applied Entomology (2005) 129, 217-220

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Omkar, G. Mishra, S. Srivastava, A.K. Gupta and S.K. Singh (2005)
Reproductive performance of four aphidophagous ladybirds on cowpea aphid, Aphis craccivora Koch
Journal of Applied Entomology 129 (4), 217-220
Abstract: This study investigated prey consumption, egg production, percent progeny loss, reproductive, pre- and post-reproductive periods, reproductive time ratio, reproductive rate and bioconversion efficiency of four aphidophagous ladybirds, viz. Cheilomenes sexmaculata (Fabricius), Coccinella septempunctata Linnaeus, Coccinella transversalis Fabricius and Propylea dissecta (Mulsant) on Dolichos lablab Linnaeus infested with cowpea aphid, Aphis craccivora Koch. C. sexmaculata had the highest bioconversion efficiency, reproductive rate and reproductive time ratio followed in rank order by P. dissecta, C. transversalis and C. septempunctata. This study indicates that C. sexmaculata has a narrow ecological relationship with A. craccivora. The increased allocation of resources to reproduction as indicated through a high reproductive time ratio and high bioconversion efficiency of C. sexmaculata and P. dissecta suggest that they may be better adapted to compete for this prey with larger species like C. transversalis and C. septempunctata.
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Link to article at publishers website
Database assignments for author(s): Omkar

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Aphis craccivora Hyacinth bean (Lablab purpureus) India
Coccinella septempunctata (predator) Aphis craccivora Hyacinth bean (Lablab purpureus) India
Propylea dissecta (predator) Aphis craccivora Hyacinth bean (Lablab purpureus) India
Coccinella transversalis (predator) Aphis craccivora Hyacinth bean (Lablab purpureus) India
Cheilomenes sexmaculata (predator) Aphis craccivora Hyacinth bean (Lablab purpureus) India