Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata
Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food ma...
Ausführliche Beschreibung
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| Autor*in: |
Srikanth, J. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: BioControl - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1956, 69(2023), 1 vom: 21. Dez., Seite 53-64 |
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| Übergeordnetes Werk: |
volume:69 ; year:2023 ; number:1 ; day:21 ; month:12 ; pages:53-64 |
| Links: |
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| DOI / URN: |
10.1007/s10526-023-10220-7 |
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| Katalog-ID: |
SPR054794986 |
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| 520 | |a Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. | ||
| 650 | 4 | |a Sugarcane |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a White grub |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Coleoptera |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Scarabaeidae |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Scarabid strain |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Bioassay |7 (dpeaa)DE-He213 | |
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| 700 | 1 | |a Sankaranarayanan, C. |4 aut | |
| 700 | 1 | |a Suresha, G. S. |4 aut | |
| 700 | 1 | |a Appunu, C. |4 aut | |
| 700 | 1 | |a Nirmala, R. |4 aut | |
| 700 | 1 | |a Om Prakash, M. |4 aut | |
| 700 | 1 | |a Athira, K. M. |4 aut | |
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10.1007/s10526-023-10220-7 doi (DE-627)SPR054794986 (SPR)s10526-023-10220-7-e DE-627 ger DE-627 rakwb eng Srikanth, J. verfasserin aut Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. Sugarcane (dpeaa)DE-He213 White grub (dpeaa)DE-He213 Coleoptera (dpeaa)DE-He213 Scarabaeidae (dpeaa)DE-He213 Scarabid strain (dpeaa)DE-He213 Bioassay (dpeaa)DE-He213 Singaravelu, B. (orcid)0000-0001-7661-092X aut Crickmore, N. aut Mahesh, P. aut Sankaranarayanan, C. aut Suresha, G. S. aut Appunu, C. aut Nirmala, R. aut Om Prakash, M. aut Athira, K. M. aut Enthalten in BioControl Dordrecht [u.a.] : Springer Science + Business Media B.V, 1956 69(2023), 1 vom: 21. Dez., Seite 53-64 (DE-627)320524396 (DE-600)2014979-7 1573-8248 nnns volume:69 year:2023 number:1 day:21 month:12 pages:53-64 https://dx.doi.org/10.1007/s10526-023-10220-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 69 2023 1 21 12 53-64 |
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10.1007/s10526-023-10220-7 doi (DE-627)SPR054794986 (SPR)s10526-023-10220-7-e DE-627 ger DE-627 rakwb eng Srikanth, J. verfasserin aut Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. Sugarcane (dpeaa)DE-He213 White grub (dpeaa)DE-He213 Coleoptera (dpeaa)DE-He213 Scarabaeidae (dpeaa)DE-He213 Scarabid strain (dpeaa)DE-He213 Bioassay (dpeaa)DE-He213 Singaravelu, B. (orcid)0000-0001-7661-092X aut Crickmore, N. aut Mahesh, P. aut Sankaranarayanan, C. aut Suresha, G. S. aut Appunu, C. aut Nirmala, R. aut Om Prakash, M. aut Athira, K. M. aut Enthalten in BioControl Dordrecht [u.a.] : Springer Science + Business Media B.V, 1956 69(2023), 1 vom: 21. Dez., Seite 53-64 (DE-627)320524396 (DE-600)2014979-7 1573-8248 nnns volume:69 year:2023 number:1 day:21 month:12 pages:53-64 https://dx.doi.org/10.1007/s10526-023-10220-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 69 2023 1 21 12 53-64 |
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10.1007/s10526-023-10220-7 doi (DE-627)SPR054794986 (SPR)s10526-023-10220-7-e DE-627 ger DE-627 rakwb eng Srikanth, J. verfasserin aut Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. Sugarcane (dpeaa)DE-He213 White grub (dpeaa)DE-He213 Coleoptera (dpeaa)DE-He213 Scarabaeidae (dpeaa)DE-He213 Scarabid strain (dpeaa)DE-He213 Bioassay (dpeaa)DE-He213 Singaravelu, B. (orcid)0000-0001-7661-092X aut Crickmore, N. aut Mahesh, P. aut Sankaranarayanan, C. aut Suresha, G. S. aut Appunu, C. aut Nirmala, R. aut Om Prakash, M. aut Athira, K. M. aut Enthalten in BioControl Dordrecht [u.a.] : Springer Science + Business Media B.V, 1956 69(2023), 1 vom: 21. Dez., Seite 53-64 (DE-627)320524396 (DE-600)2014979-7 1573-8248 nnns volume:69 year:2023 number:1 day:21 month:12 pages:53-64 https://dx.doi.org/10.1007/s10526-023-10220-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 69 2023 1 21 12 53-64 |
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10.1007/s10526-023-10220-7 doi (DE-627)SPR054794986 (SPR)s10526-023-10220-7-e DE-627 ger DE-627 rakwb eng Srikanth, J. verfasserin aut Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. Sugarcane (dpeaa)DE-He213 White grub (dpeaa)DE-He213 Coleoptera (dpeaa)DE-He213 Scarabaeidae (dpeaa)DE-He213 Scarabid strain (dpeaa)DE-He213 Bioassay (dpeaa)DE-He213 Singaravelu, B. (orcid)0000-0001-7661-092X aut Crickmore, N. aut Mahesh, P. aut Sankaranarayanan, C. aut Suresha, G. S. aut Appunu, C. aut Nirmala, R. aut Om Prakash, M. aut Athira, K. M. aut Enthalten in BioControl Dordrecht [u.a.] : Springer Science + Business Media B.V, 1956 69(2023), 1 vom: 21. Dez., Seite 53-64 (DE-627)320524396 (DE-600)2014979-7 1573-8248 nnns volume:69 year:2023 number:1 day:21 month:12 pages:53-64 https://dx.doi.org/10.1007/s10526-023-10220-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 69 2023 1 21 12 53-64 |
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10.1007/s10526-023-10220-7 doi (DE-627)SPR054794986 (SPR)s10526-023-10220-7-e DE-627 ger DE-627 rakwb eng Srikanth, J. verfasserin aut Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. Sugarcane (dpeaa)DE-He213 White grub (dpeaa)DE-He213 Coleoptera (dpeaa)DE-He213 Scarabaeidae (dpeaa)DE-He213 Scarabid strain (dpeaa)DE-He213 Bioassay (dpeaa)DE-He213 Singaravelu, B. (orcid)0000-0001-7661-092X aut Crickmore, N. aut Mahesh, P. aut Sankaranarayanan, C. aut Suresha, G. S. aut Appunu, C. aut Nirmala, R. aut Om Prakash, M. aut Athira, K. M. aut Enthalten in BioControl Dordrecht [u.a.] : Springer Science + Business Media B.V, 1956 69(2023), 1 vom: 21. Dez., Seite 53-64 (DE-627)320524396 (DE-600)2014979-7 1573-8248 nnns volume:69 year:2023 number:1 day:21 month:12 pages:53-64 https://dx.doi.org/10.1007/s10526-023-10220-7 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 69 2023 1 21 12 53-64 |
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Enthalten in BioControl 69(2023), 1 vom: 21. Dez., Seite 53-64 volume:69 year:2023 number:1 day:21 month:12 pages:53-64 |
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Enthalten in BioControl 69(2023), 1 vom: 21. Dez., Seite 53-64 volume:69 year:2023 number:1 day:21 month:12 pages:53-64 |
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Srikanth, J. @@aut@@ Singaravelu, B. @@aut@@ Crickmore, N. @@aut@@ Mahesh, P. @@aut@@ Sankaranarayanan, C. @@aut@@ Suresha, G. S. @@aut@@ Appunu, C. @@aut@@ Nirmala, R. @@aut@@ Om Prakash, M. @@aut@@ Athira, K. M. @@aut@@ |
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Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. 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Srikanth, J. |
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Srikanth, J. misc Sugarcane misc White grub misc Coleoptera misc Scarabaeidae misc Scarabid strain misc Bioassay Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata |
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Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata Sugarcane (dpeaa)DE-He213 White grub (dpeaa)DE-He213 Coleoptera (dpeaa)DE-He213 Scarabaeidae (dpeaa)DE-He213 Scarabid strain (dpeaa)DE-He213 Bioassay (dpeaa)DE-He213 |
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Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata |
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Srikanth, J. Singaravelu, B. Crickmore, N. Mahesh, P. Sankaranarayanan, C. Suresha, G. S. Appunu, C. Nirmala, R. Om Prakash, M. Athira, K. M. |
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laboratory evaluation of a scarabid-specific isolate of bacillus thuringiensis against white grub holotrichia serrata |
| title_auth |
Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata |
| abstract |
Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstractGer |
Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstract_unstemmed |
Abstract A scarabid-specific isolate (Bt 62) of Bacillus thuringiensis Berliner was bioassayed against different instars of the white grub Holotrichia serrata F. (Coleoptera: Scarabaeidae). Carrot disc contamination method was followed since preliminary tests established carrot as a suitable food material vis-à-vis potato, sugarcane root and farmyard manure for first instar grubs. In two replicated bioassays with first instar grubs, 10 mm diam. carrot discs dispensed on one side with six doses, i.e, 1, 3, 6, 9, 12 and 15 μg of toxin per disc were fed to individual grubs and their mortality was recorded at 24 h intervals. In tests with second and third instar grubs, carrot discs of 30 mm diam. were similarly contaminated with 25, 50, 75, 100, 125, 150 and 175 μg of toxin per disc and fed to grubs. Percentage carrot disc area consumed was assessed visually to represent feeding rates and infer on feeding inhibition. In the two replicated trials against first instar, grubs suffered mortality one day after treatment (DAT) and mortality levels increased with days of exposure. Mean mortality rates at different doses were significantly higher than that in control and they increased with time reaching a peak on third DAT. In tests with second and third instar grubs, feeding inhibition manifested on first DAT but inhibition rates decreased at a decreasing rate as feeding progressed. Mean feeding rates at different doses were significantly lower than that in control and they peaked on fourth to fifth DAT. The results of the laboratory tests and the prospects of Bt 62 in white grub control are discussed. © The Author(s), under exclusive licence to International Organization for Biological Control (IOBC) 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| title_short |
Laboratory evaluation of a scarabid-specific isolate of Bacillus thuringiensis against white grub Holotrichia serrata |
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https://dx.doi.org/10.1007/s10526-023-10220-7 |
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Singaravelu, B. Crickmore, N. Mahesh, P. Sankaranarayanan, C. Suresha, G. S. Appunu, C. Nirmala, R. Om Prakash, M. Athira, K. M. |
| author2Str |
Singaravelu, B. Crickmore, N. Mahesh, P. Sankaranarayanan, C. Suresha, G. S. Appunu, C. Nirmala, R. Om Prakash, M. Athira, K. M. |
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10.1007/s10526-023-10220-7 |
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2024-07-04T03:02:51.820Z |
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| score |
7.4022093 |