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| Registros recuperados : 5 | |
| 1. |  | MEDEROS, A.; KELTON, D.; PEREGRINE, A.S.; VANLEEUWEN, J.; FERNÁNDEZ, S.; LEBOEUF, A.; MENZIES, P.; MARTIN, R. Evaluation of the utility of subjective clinical parameters for estimating fecal egg counts and packed cell volume in Canadian sheep flocks. Veterinary Parasitology, 2014, v.205, p. 568?574. Article history: Received 12 February 2014 / Received in revised form 8 August 2014 / Accepted 30 August 2014.| Biblioteca(s): INIA Las Brujas; INIA Tacuarembó. |
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| 2. | | MEDEROS, A.; FERNÁNDEZ, S.; VanLEEUWEN, J.; PEREGRINE, A.S.; KELTON, D.; MENZIES, P.; LeBOEUF, A.; MARTIN, R. Prevalence and distribution of gastrointestinal nematodes on 32 organic and conventional commercial sheep farms in Ontario and Quebec, Canada (2006-2008). Veterinary Parasitology, 2010, v. 170, no.3-4, p. 244-252. Article history: Received 5 August 2009 / Received in revised form 28 December 2009 / Accepted 11 February 2010.| Biblioteca(s): INIA Las Brujas. |
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| 3. | | FALZON, L.C.; O´NEILL, T.J.; MENZIES, P.I.; PEREGRINE, A.S.; JONES-BITTON, A.; VANLEEUWEN, J.; MEDEROS, A. A systematic review and meta-analysis of factors associated with anthelmintic resistance in sheep. Preventive Veterinary Medicine, 2014, v. 117, p. 388-402. Article history: Received 5 March 2014; Received in revised form 27 May 2014; Accepted 3 July 2014.| Biblioteca(s): INIA Tacuarembó. |
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| 4. | | MEDEROS, A.; WADDELL, L.; SÁNCHEZ, J.; KELTON, D.; PEREGRINE, A.S.; MENZIES, P.; VANLEEUWEN, J.; RAJIC, A. A systematic review meta analysis of primary research investigating the effect of selected alternative treatments on gastrointestinal nematodes in sheep under field conditions. Preventive Veterinary Medicine, 2012, v. 104, p. 1-14 104 1-14 Article history: Received 18 August 2011 //Received in revised form 27 October 2011 // Accepted 30 October 2011.| Biblioteca(s): INIA Tacuarembó. |
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| 5. | | GUTHRIE, A.D.; LEARMOUNT, J.; VANLEEUWEN, J.; PEREGRINE, A.S.; KELTON, D.; MENZIES, P.I.; FERNÁNDEZ, S.; MARTIN, R.C.; MEDEROS, A.; TAYLOR, M.A. Evaluation of a British computer model to simulate gastrointestinal nematodes in sheep on Canadian farms. Veterinary Parasitology, 2010, Volume 174, Issue 1-2, Pages 92-1052. doi: https://doi.org/10.1016/j.vetpar.2010.08.002 Article history: Received 12 January 2010; Revised 21 July 2010; Accepted 2 August 2010; Available online 11 August 2010.| Biblioteca(s): INIA Las Brujas. |
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| Registros recuperados : 5 | |
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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
19/11/2015 |
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Actualizado : |
19/11/2015 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
MONDINO, P.; CASANOVA, L.; CELIO, A.; BENTANCUR, O.; LEONI, C.; ALANIZ, S. |
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Afiliación : |
PEDRO MONDINO, Universidad de la República (UdelaR)/ Facultad de Agronomía; LETICIA CASANOVA, Universidad de la República (UdelaR)/ Facultad de Agronomía; ANTONELLA CELIO, Universidad de la República (UdelaR)/ Facultad de Agronomía; OSCAR BENTANCUR, Universidad de la República (UdelaR)/ Facultad de Agronomía; CAROLINA LEONI VELAZCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SANDRA ALANIZ, Universidad de la República (UdelaR)/ Facultad de Agronomía. |
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Título : |
Sensitivity of Venturia inaequalis to Trifloxystrobin and Difenoconazole in Uruguay. |
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Fecha de publicación : |
2015 |
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Fuente / Imprenta : |
Journal of Phytopathology, 2015, v.163, p.1-10. |
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DOI : |
10.1111/jph.12274 |
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Idioma : |
Inglés |
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Notas : |
Original article. Received: December 26, 2013; accepted: April 4, 2014. |
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Contenido : |
ABSTRACT.
The sensitivity of Venturia inaequalis to trifloxystrobin and difenoconazole was studied in Uruguay. Populations of V. inaequalis were collected from apple orchards with different histories of trifloxystrobin use. Sensitivity of populations to trifloxystrobin was analysed using a method for testing spore germination published by FRAC, using a discriminatory concentration of 2.0 mg a.i./l. Resistance to trifloxystrobin was widespread in the region of commercial apple production with resistance detected in all orchards examined, the incidences ranging from 3% to 95%. The highest frequencies were found in orchards with the most intensive use of Quinone outside inhibitors (QoI) fungicides. Sensitivities of isolates of V. inaequalis to difenoconazole were assessed at five concentrations using a mycelial growth assay on isolates (33 isolates per orchard) from one non-commercial (baseline orchard) and two commercial orchards having differing histories of difenoconazole use. Populations in both commercial orchards exhibited reduced sensitivities to difenoconazole compared to the baseline orchard. Resistance factor (RF) values of 6.6 and 11.74 were measured in the orchards with moderate (up to 4 sprays per season) and
intensive use (more than 5 sprays per season) of difenoconazole, respectively. A single-assessment concentration (SAC) was identified for assessing difenoconazole sensitivity of V. inaequalis isolates by fitting linear regressions between log10 EC50 and relative growth (RG) of the isolates at each fungicide concentration testing, and comparing the goodness-of-fit of the regression lines. Comparable results were obtained based on EC50 values and RG values at a SAC of 0.05 mg of active ingredient per litre (a.i. per l). Populations from both commercial orchards differed from the baseline population, in that isolates with RG ≥70 were present at substantial levels in the former but absent from the latter. MenosABSTRACT.
The sensitivity of Venturia inaequalis to trifloxystrobin and difenoconazole was studied in Uruguay. Populations of V. inaequalis were collected from apple orchards with different histories of trifloxystrobin use. Sensitivity of populations to trifloxystrobin was analysed using a method for testing spore germination published by FRAC, using a discriminatory concentration of 2.0 mg a.i./l. Resistance to trifloxystrobin was widespread in the region of commercial apple production with resistance detected in all orchards examined, the incidences ranging from 3% to 95%. The highest frequencies were found in orchards with the most intensive use of Quinone outside inhibitors (QoI) fungicides. Sensitivities of isolates of V. inaequalis to difenoconazole were assessed at five concentrations using a mycelial growth assay on isolates (33 isolates per orchard) from one non-commercial (baseline orchard) and two commercial orchards having differing histories of difenoconazole use. Populations in both commercial orchards exhibited reduced sensitivities to difenoconazole compared to the baseline orchard. Resistance factor (RF) values of 6.6 and 11.74 were measured in the orchards with moderate (up to 4 sprays per season) and
intensive use (more than 5 sprays per season) of difenoconazole, respectively. A single-assessment concentration (SAC) was identified for assessing difenoconazole sensitivity of V. inaequalis isolates by fitting linear regressions between log10 EC50 and relat... Presentar Todo |
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Palabras claves : |
APPLE SCAB; DMIs; FUNGICIDE RESISTANCE; RESISTENCIA A LOS FUNGICIDAS; SARNA DEL MANZANO; SINGLE-ASSESSMENT CONCENTRATION. |
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Thesagro : |
ENFERMEDADES DE LAS PLANTAS; MANZANO; SARNA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02876nga a2200313 a 4500
001 1053947
005 2015-11-19
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1111/jph.12274$2DOI
100 1 $aMONDINO, P.
245 $aSensitivity of Venturia inaequalis to Trifloxystrobin and Difenoconazole in Uruguay.
260 $c2015
500 $aOriginal article. Received: December 26, 2013; accepted: April 4, 2014.
520 $aABSTRACT. The sensitivity of Venturia inaequalis to trifloxystrobin and difenoconazole was studied in Uruguay. Populations of V. inaequalis were collected from apple orchards with different histories of trifloxystrobin use. Sensitivity of populations to trifloxystrobin was analysed using a method for testing spore germination published by FRAC, using a discriminatory concentration of 2.0 mg a.i./l. Resistance to trifloxystrobin was widespread in the region of commercial apple production with resistance detected in all orchards examined, the incidences ranging from 3% to 95%. The highest frequencies were found in orchards with the most intensive use of Quinone outside inhibitors (QoI) fungicides. Sensitivities of isolates of V. inaequalis to difenoconazole were assessed at five concentrations using a mycelial growth assay on isolates (33 isolates per orchard) from one non-commercial (baseline orchard) and two commercial orchards having differing histories of difenoconazole use. Populations in both commercial orchards exhibited reduced sensitivities to difenoconazole compared to the baseline orchard. Resistance factor (RF) values of 6.6 and 11.74 were measured in the orchards with moderate (up to 4 sprays per season) and intensive use (more than 5 sprays per season) of difenoconazole, respectively. A single-assessment concentration (SAC) was identified for assessing difenoconazole sensitivity of V. inaequalis isolates by fitting linear regressions between log10 EC50 and relative growth (RG) of the isolates at each fungicide concentration testing, and comparing the goodness-of-fit of the regression lines. Comparable results were obtained based on EC50 values and RG values at a SAC of 0.05 mg of active ingredient per litre (a.i. per l). Populations from both commercial orchards differed from the baseline population, in that isolates with RG ≥70 were present at substantial levels in the former but absent from the latter.
650 $aENFERMEDADES DE LAS PLANTAS
650 $aMANZANO
650 $aSARNA
653 $aAPPLE SCAB
653 $aDMIs
653 $aFUNGICIDE RESISTANCE
653 $aRESISTENCIA A LOS FUNGICIDAS
653 $aSARNA DEL MANZANO
653 $aSINGLE-ASSESSMENT CONCENTRATION
700 1 $aCASANOVA, L.
700 1 $aCELIO, A.
700 1 $aBENTANCUR, O.
700 1 $aLEONI, C.
700 1 $aALANIZ, S.
773 $tJournal of Phytopathology, 2015$gv.163, p.1-10.
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