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biocontrol of the brown-banded cockroach, supella longipalpa f. (blattaria: blattellidae), with entomopathogenic fungus, metharhizium anisopliae
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نویسنده
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sharififard mona ,mossadegh mohammad saeed ,vazirianzadeh babak ,latifi seyed mahmood
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منبع
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journal of arthropod-borne diseases - 2016 - دوره : 10 - شماره : 3 - صفحه:337 -348
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چکیده
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background: considering to the high distribution of cockroaches as urban pests, the efficacy of different formulations of metarhizium anisopliae strain iran 437c were assessed against the brown-banded cockroach, supella longipalpa f. under laboratory and field conditions.
methods: metarhizium anisopliae isolates were screened with immersing adults of the brown-banded cockroachs in aqueous suspension of 108 conidia ml-1 followed by surface or bait treated with different doses of the most virulent isolate against the nymphs. then formulations of conidia oil-in-water were examined versus cockroach nymphs using different plant oils and paraffin. then they were evaluated and compared with aqueous suspension and control group. on a large-scale, the sunflower oil-in-water formulation of conidia was sprayed at houses using a hand sprayer.
results: metarhizium anisopliae iran 437c was the most virulent isolate against the brown-banded cockroach, causing 100% mortality in adults at seven days post-exposure. inoculated bait with this isolate was not enough pathogenic against the cockroach even at two weeks after treatment. treated surface with conidia as aqueous suspension or oil-in- water formulation was more effective than the bait formulation against the cockroach caused 39.4–97.2% mortality compared with 2.5% mortality in control group after two days. spraying the conidia formulated with sunflower oil was an effective formulation causing 76.1% reduction in the cockroach density on the third day post treatment in the houses.
conclusion: the oil-in-water formulation of m. anisopliae iran 437c could be recommended as a promising alternative for cockroach control.
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کلیدواژه
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supella longipalpa ,metarhizium anisopliae ,entomopathogenic fungus ,biocontrol
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آدرس
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ahvaz jundishapur university of medical sciences, ایران, shahid chamran university of ahvaz, ایران, ahvaz jundishapur university of medical sciences, ایران, department of statics and epidemiology, school of public health, ahvaz jundishapur university of medical science, ahvaz, iran, Iran, Islamic Republic of
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پست الکترونیکی
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babakvazir@yahoo.co.uk
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Authors
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