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Predatory Potential of Coccinella septempunctata L. against Four Aphid Species

Predatory Potential of Coccinella septempunctata L. against Four Aphid Species

Muhammad Arshad1*, Hafiz Azhar Ali Khan2*, Faisal Hafeez3, Ravaid Sherazi1 and Naeem Iqbal4

1Department of Entomology, University of Agriculture, Faisalabad, Pakistan
2Institute of Agricultural Sciences, University of the Punjab, Lahore, Pakistan
3Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan
4Department of Plant Protection, Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan, Pakistan

ABSTRACT

The relationship between a coccinellid beetle (Coccinella septempunctata L.) and four different aphid species (spinach aphid, Aphis fabae Scopoli; coriander aphid, Hyadaphis coriandri (Das); cabbage aphid, Brevicoryne brassicae L.;pea aphid, Acyrthosiphon pisum Harris) was evaluated in the laboratory in no choice and free choice feeding assays. In the no choice feeding assay, the stages of beetle (adults, 3rd and 4th instar) consumed more aphids than early stages (1st and 2nd instar). In the free choice feeding assay, the consumption of pea aphid (77.647) was statistically high followed by spinach (66.276), coriander (66.14) and cabbage (61.48) aphids. Manly’s preference index suggest that pea aphid was the most preferred (by all stages of C. septempunctata) aphid species followed by coriander, and the cabbage aphid was the least preferred species. The results of the present study revealed predatory potential of C. septempunctata against different aphid species under the laboratory conditions. The results could be helpful in designing biological management strategies for aphids.
 

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Pakistan Journal of Zoology (Associated Journals)

December

Vol. 49, Iss. 5, Pages 1937-2341

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