ANTI-FEEDING EFFECTS OF SUBLETHAL CONCENTRATIONS OF FUNGUSBEAUVERIA BASSIANABALSAMO, BEAUVERIA BRONGNIARTII SACCARDO AND METARHIZIUM ANISOPLIAEMETSCH ON THE DATE'S HORN BEETLE LARVAE ORYCTES ELEGANS PRELL

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LATIFIAN M.; RAD B.

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Journal: JOURNAL OF ENTOMOLOGICAL RESEARCH Year:2014 | Volume:6 | Issue:1 (21) Page(s): 53-65

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Title

ANTI-FEEDING EFFECTS OF SUBLETHAL CONCENTRATIONS OF FUNGUSBEAUVERIA BASSIANABALSAMO, BEAUVERIA BRONGNIARTII SACCARDO AND METARHIZIUM ANISOPLIAEMETSCH ON THE DATE'S HORN BEETLE LARVAE ORYCTES ELEGANS PRELL

Author(s)

LATIFIAN M. | RAD B. | Issue Writer Certificate

Keywords

ANTI-NUTRITIONAL EFFECTSQ2

ENTOMOPATHOGENIC FUNGIQ2

ORYCTES ELEGANSQ2

Abstract

The effects of sub-lethal doses of the fungi, B.bassiana, B.brongniartii and M. anisopliae on feeding ability of the larvae of the date horned beetle and the indices of digestion, absorption and excretion of this pest were studied in laboratory condition. First, the sub-lethal doses of 50 and 90% of reducing power ability (EC50 and EC90) was calculated and then the physiological feeding indices including Relative Consumption Rate (RCR), Efficiency of Conversion of Ingested food (ECI, Efficiency of Digested food (ECD), Approximate Digestibility (AD) were estimated. The results showed that the isolates of all three pathogenic fungi had a significant different high ability to reduce the feeding efficiency of the date- pest larvae. The highest and lowest abilities belonged to M. anisopliae and B. bassiana with the EC50 of 4.27×104 and 7.95×104 spores/ml, respectively.There was a significant difference between physiological feeding indices of the pest larvae when they were exposed to applied doses of spores. In all three pathogenic fungi species, increasing doses of spore decreased the values of MRG, ECI, ECD and AD, but increased the value of PCR.The highest of the regression lines of the indices on log scale of doses was recorded in M. anisopliaeand then the two other species, B. brongniartii and B. bassiana.

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APA: Copy

LATIFIAN, M., & RAD, B.. (2014). ANTI-FEEDING EFFECTS OF SUBLETHAL CONCENTRATIONS OF FUNGUSBEAUVERIA BASSIANABALSAMO, BEAUVERIA BRONGNIARTII SACCARDO AND METARHIZIUM ANISOPLIAEMETSCH ON THE DATE'S HORN BEETLE LARVAE ORYCTES ELEGANS PRELL. JOURNAL OF ENTOMOLOGICAL RESEARCH, 6(1 (21)), 53-65. SID. https://sid.ir/paper/201113/en

Vancouver: Copy

LATIFIAN M., RAD B.. ANTI-FEEDING EFFECTS OF SUBLETHAL CONCENTRATIONS OF FUNGUSBEAUVERIA BASSIANABALSAMO, BEAUVERIA BRONGNIARTII SACCARDO AND METARHIZIUM ANISOPLIAEMETSCH ON THE DATE'S HORN BEETLE LARVAE ORYCTES ELEGANS PRELL. JOURNAL OF ENTOMOLOGICAL RESEARCH[Internet]. 2014;6(1 (21)):53-65. Available from: https://sid.ir/paper/201113/en

IEEE: Copy

M. LATIFIAN, and B. RAD, “ANTI-FEEDING EFFECTS OF SUBLETHAL CONCENTRATIONS OF FUNGUSBEAUVERIA BASSIANABALSAMO, BEAUVERIA BRONGNIARTII SACCARDO AND METARHIZIUM ANISOPLIAEMETSCH ON THE DATE'S HORN BEETLE LARVAE ORYCTES ELEGANS PRELL,” JOURNAL OF ENTOMOLOGICAL RESEARCH, vol. 6, no. 1 (21), pp. 53–65, 2014, [Online]. Available: https://sid.ir/paper/201113/en

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