Biocontrol potential of some entomopathogenic fungi against the Cotton Aphid, Aphis gossypii Glover (Hemiptera: Aphididae)

Authors : Derya BAKİ, Fedai ERLER

Pages : 44-53

Doi:10.31019/tbmd.1204217

View : 46 | Download : 36

Publication Date : 2023-07-25

Article Type : Research Paper

Abstract :In this study, the effectiveness of entomopathogenic fungal insert ignore into journalissuearticles values(EPF); species isolated from soil and infected aphid samples taken from different districts of Antalya between 2018-2020 was investigated against the cotton aphid, Aphis gossypii. For this purpose, 19 entomopathogenic fungal isolates were tested against the nymphs and adults of A. gossypii in 9 cm diameter Petri dishes at a concentration of 1x107 spores/mL. Among the fungal species tested, Beauveria bassiana was the most pathogenic species. In pathogenicity tests, 10 days after incubation, B. bassiana caused 63.3%-100%, Cunninghamella echinulata 43.3%, Clonostachys rosea 40-70%, Isaria farinosa 43.3%-63.3%, and Purpureocillium lilacinum 73.3%-83.3% mortality of A. gossypii adults. The TaAl-1 isolate of Trichoderma atroviride used in biological control caused a mortality of 33.3%, and the ThAk-1 isolate of T. harzianum caused 50.0% mortality. Of the 3 commercial fungal preparations tested at doses of 250 mL/1lt water for comparison with indigenous fungal isolates, Nibortem insert ignore into journalissuearticles values(a.i.: Verticillium lecanii); caused 70% and 56.7% mortalities in nymphs and adults, respectively, 10 days after treatment, while Nostalgist insert ignore into journalissuearticles values(a.i.: B. bassiana); and Priority insert ignore into journalissuearticles values(a.i.: Paecilomyces fumosoroseus); caused 56.7% and 50% nymphal mortality, and 53.3% and 56.7% adult mortality, respectively.
Keywords : Aphis gossypii, Beauveria bassiana, Pamuk yaprakbiti, Entomopatojenik fungus, Mikrobiyal mücadele

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