Vulnerability of different life stages of Bactrocera zonata (Tephritidae: Diptera) against entomogenous fungi. | [Pakistan Journal of Zoology • 2015]

Author(s):

1. Hafiza Tahira Gul: Laboratory of Insect Microbiology and Biotechnology, Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan

2. Shoaib Freed: Laboratory of Insect Microbiology and Biotechnology, Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan

3. Muhammad Akmal: Laboratory of Insect Microbiology and Biotechnology, Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan

4. Muhammad Naeem Malik: Laboratory of Insect Microbiology and Biotechnology, Department of Entomology, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan, Pakistan

Abstract:

The pathogenecity of three entomopathogenic fungi, Beauveria bassiana, Metarhizium anisopliae and Isaria fumosorosea was tested against different life stages of Bactrocera zonata under laboratory conditions using five different ways viz., contact bioassay, oral bioassay, inoculation of immatures and pupae and soil application for pupae. The results showed higher adult mortality in contact bioassay for all the fungi tested as compared to the other methods of application. The pathogenecity of B. bassiana was upto 20% in oral bioassay and 30-40% for I. fumosorosea and M. anisopliae, respectively. I. fumosorosea significantly affected the adult emergence, while 50-70% adult emergence was recorded in immatures inoculated with B. bassiana and M. anisopliae. Symptoms of dark, shrinked pupae, deformed adults and incomplete adult emergence from the pupae were also observed after immature treatments with insect pathogenic fungi.

Page(s): 307-317

DOI: DOI not available

Published: Journal: Pakistan Journal of Zoology, Volume: 47, Issue: 2, Year: 2015

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