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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
25/11/2022 |
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Actualizado : |
25/11/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
COLLARES, M.; VILLALBA, J. |
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Afiliación : |
MATHÍAS COLLARES, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay; JUANA VILLALBA, Facultad de Agronomía, Universidad de la República, Montevideo, Uruguay. |
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Título : |
Effect of Avena strigosa straw and rainfall on sulfentrazone and flumioxazin control effectiveness of Amaranthus spp. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
International Journal of Pest Management, 2022, vol. 68, issue 4: "Uruguayan Society of Phytopathology (SUFIT): Plant protection for a sustainable agriculture", p.423-428. doi: https://doi.org/10.1080/09670874.2022.2123570 |
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ISSN : |
1366-5863 (online) |
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DOI : |
10.1080/09670874.2022.2123570 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 26 May 2022, Accepted 25 August 2022, Published online: 11 November 2022. |
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Contenido : |
ABSTRACT.- Cover crops constitute an interesting option for cultural weed control. Expansion of herbicide resistant weeds in Uruguay, has been associated with an increase use of pre-emergent herbicides for their control. Crops residues could decrease their effectiveness. The objective of these work was to evaluate the effect of Avena strigosa straw and moment and amount of rain, in Amaranthus spp. control effectiveness by flumioxazin and sulfentrazone. Two experiments were carried out for each herbicide in pots, in a greenhouse. The design was in randomized complete blocks, with five repetitions and factorial arrangement of treatments. In experiments I, factors were: I) amount of A. strigosa straw (0 and 6 t ha-1); and II) amount of rainfall (20 and 80 mm), for each herbicide. In experiments II, factors were: I) amount of A. strigosa straw (0 and 6 t ha-1); II) amount of rainfall (20, 60 mm); and III) Days between application and rainfall occurrence (1, 7 and 14). Weed emergencies were quantified at days 8, 22 and 39 after rainfall (DAR). Results were independently analyzed using a model with gaussian distribution. Sulfentrazone effectiveness in Amaranthus spp. control was not affected by studied factors. In the case of flumioxazin, straw effect was consistently detected. Amounts of 6 t ha-1 of oat straw reduced Amaranthus spp. control effectiveness of the herbicide. © 2022 Informa UK Limited, trading as Taylor & Francis Group |
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Palabras claves : |
Cover crops; Flumioxazin; Rainfall; Straw; Sulfentrazone. |
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Asunto categoría : |
H01 Protección de plantas - Aspectos generales |
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Marc : |
LEADER 02400naa a2200229 a 4500
001 1063788
005 2022-11-25
008 2022 bl uuuu u00u1 u #d
022 $a1366-5863 (online)
024 7 $a10.1080/09670874.2022.2123570$2DOI
100 1 $aCOLLARES, M.
245 $aEffect of Avena strigosa straw and rainfall on sulfentrazone and flumioxazin control effectiveness of Amaranthus spp.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 26 May 2022, Accepted 25 August 2022, Published online: 11 November 2022.
520 $aABSTRACT.- Cover crops constitute an interesting option for cultural weed control. Expansion of herbicide resistant weeds in Uruguay, has been associated with an increase use of pre-emergent herbicides for their control. Crops residues could decrease their effectiveness. The objective of these work was to evaluate the effect of Avena strigosa straw and moment and amount of rain, in Amaranthus spp. control effectiveness by flumioxazin and sulfentrazone. Two experiments were carried out for each herbicide in pots, in a greenhouse. The design was in randomized complete blocks, with five repetitions and factorial arrangement of treatments. In experiments I, factors were: I) amount of A. strigosa straw (0 and 6 t ha-1); and II) amount of rainfall (20 and 80 mm), for each herbicide. In experiments II, factors were: I) amount of A. strigosa straw (0 and 6 t ha-1); II) amount of rainfall (20, 60 mm); and III) Days between application and rainfall occurrence (1, 7 and 14). Weed emergencies were quantified at days 8, 22 and 39 after rainfall (DAR). Results were independently analyzed using a model with gaussian distribution. Sulfentrazone effectiveness in Amaranthus spp. control was not affected by studied factors. In the case of flumioxazin, straw effect was consistently detected. Amounts of 6 t ha-1 of oat straw reduced Amaranthus spp. control effectiveness of the herbicide. © 2022 Informa UK Limited, trading as Taylor & Francis Group
653 $aCover crops
653 $aFlumioxazin
653 $aRainfall
653 $aStraw
653 $aSulfentrazone
700 1 $aVILLALBA, J.
773 $tInternational Journal of Pest Management, 2022, vol. 68, issue 4: "Uruguayan Society of Phytopathology (SUFIT): Plant protection for a sustainable agriculture", p.423-428. doi: https://doi.org/10.1080/09670874.2022.2123570
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
20/03/2024 |
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Actualizado : |
20/03/2024 |
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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 : |
GIANNITTI, F.; MACHADO, M.; SILVEIRA, C.S.; CIBILS-STEWART, X.; BARAIBAR, N.; QUEIROZ-MACHADO, C.R.R.; POPPENGA, R.H.; MENCHACA, A.; UZAL, F.A.; GARCÍA, J.A.; MATTO, C.; DUTRA, F.; RUPRECHTER, G.; CAFFARENA, D.; SARAVIA, A. |
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Afiliación : |
FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MIZAEL MACHADO DA COSTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CAROLINE DA SILVA SILVEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NICOLÁS BARAIBAR PEDERSEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CINTIA R. R. QUEIROZ-MACHADO, Centro Universitario Regional Noroeste, Universidad de la República, Tacuarembó, Uruguay; ROBERT H. POPPENGA, School of Veterinary Medicine, University of California, Davis, Davis CA, United States; JOSE ALEJO MENCHACA BARBEITO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FRANCISCO A. UZAL, School of Veterinary Medicine, University of California, Davis, San Bernardino, CA, United States; JUAN A. GARCÍA, Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible, Balcarce, Argentina; CAROLINA MATTO, División Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Paysandú, Uruguay; FERNANDO DUTRA, División Laboratorios Veterinarios, Ministerio de Ganadería, Agricultura y Pesca, Treinta y Tres, Uruguay; GRETEL RUPRECHTER, Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay; RUBEN DARÍO CAFFARENA LEDESMA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Facultad de Veterinaria, Universidad de la República, Montevideo, Uruguay; ANDERSON SARAVIA DE MELO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Experimental oral administration of pollen beetle (Astylus atromaculatus) to cattle results in an acute lethal gastrointestinal disease. |
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Complemento del título : |
Research article. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Veterinary Pathology. 2024. https://doi.org/10.1177/03009858241231557 -- [In Press] |
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ISSN : |
0300-9858 |
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DOI : |
10.1177/03009858241231557 |
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Idioma : |
Inglés |
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Notas : |
Article history: First published online March 4, 2024. -- Correspondence: Federico Giannitti, Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Estación Experimental La Estanzuela, Ruta 50 km 11, Semillero 70006, Colonia, Uruguay.
Email: fgiannitti@inia.org.uy -- Funding: This work was funded by grant P__27 from the "Instituto Nacional de Investigación Agropecuaria" (INIA), Uruguay. -- |
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Contenido : |
ABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might contain a gastrointestinal toxin or pathogen, extensive toxicological testing failed to identify a causative toxin. Other pathomechanisms such as direct physical damage caused by insect fragments on the alimentary tract seem plausible, although further studies are needed to elucidate the pathogenesis of A. atromaculatus-associated disease. © The Author(s) 2024. MenosABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might c... Presentar Todo |
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Palabras claves : |
Alimentary tract; Astylus atromaculatus; Bovine; Enteritis; Experimental disease; Insects; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA; Rumenitis; South America. |
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Asunto categoría : |
L01 Ganadería |
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Marc : |
LEADER 03582naa a2200433 a 4500
001 1064506
005 2024-03-20
008 2024 bl uuuu u00u1 u #d
022 $a0300-9858
024 7 $a10.1177/03009858241231557$2DOI
100 1 $aGIANNITTI, F.
245 $aExperimental oral administration of pollen beetle (Astylus atromaculatus) to cattle results in an acute lethal gastrointestinal disease.$h[electronic resource]
260 $c2024
500 $aArticle history: First published online March 4, 2024. -- Correspondence: Federico Giannitti, Plataforma de Investigación en Salud Animal, Instituto Nacional de Investigación Agropecuaria, Estación Experimental La Estanzuela, Ruta 50 km 11, Semillero 70006, Colonia, Uruguay. Email: fgiannitti@inia.org.uy -- Funding: This work was funded by grant P__27 from the "Instituto Nacional de Investigación Agropecuaria" (INIA), Uruguay. --
520 $aABSTRACT.- In the summer of 2023, ingestion of Astylus atromaculatus (pollen beetle) was linked to spontaneous fatal disease in grazing cattle and sheep in Argentina and Uruguay. While the disease was experimentally reproduced in sheep and guinea pigs in the 1970's, no experimental reproductions have been attempted in cattle, and controversy exists as to whether this insect is indeed noxious to cattle and at which dose. Here, we demonstrate that A. atromaculatus causes acute fatal disease in Hereford calves at single oral dosages of 2.5, 4.5, 10.0, and 15.0 g of insect/kg body weight. Death or severe disease necessitating euthanasia occurred at 38 to 48 hours postinoculation regardless of the dose, suggesting that the single fatal dosage is likely <2.5 g/kg body weight (this dose representing approximately 850 mL of intact beetles in a 100 kg calf). Clinically, the disease was characterized by acute anorexia, prolonged recumbency, reluctance to move, listlessness/apathy, depression, ruminal hypomotility and tympany, hypothermia, bruxism with frothing at the mouth, and mucoid diarrhea progressing to death. Hematologic and biochemical alterations included hemoconcentration, stress/acute inflammatory leukogram, negative energy balance, and ketosis. The pathological hallmark of this experimental disease is acute necrotizing omaso-reticulo-rumenitis, fibrinohemorrhagic enteritis, and exfoliative colitis with intralesional chitinous insect fragments. While A. atromaculatus might contain a gastrointestinal toxin or pathogen, extensive toxicological testing failed to identify a causative toxin. Other pathomechanisms such as direct physical damage caused by insect fragments on the alimentary tract seem plausible, although further studies are needed to elucidate the pathogenesis of A. atromaculatus-associated disease. © The Author(s) 2024.
653 $aAlimentary tract
653 $aAstylus atromaculatus
653 $aBovine
653 $aEnteritis
653 $aExperimental disease
653 $aInsects
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA
653 $aRumenitis
653 $aSouth America
700 1 $aMACHADO, M.
700 1 $aSILVEIRA, C.S.
700 1 $aCIBILS-STEWART, X.
700 1 $aBARAIBAR, N.
700 1 $aQUEIROZ-MACHADO, C.R.R.
700 1 $aPOPPENGA, R.H.
700 1 $aMENCHACA, A.
700 1 $aUZAL, F.A.
700 1 $aGARCÍA, J.A.
700 1 $aMATTO, C.
700 1 $aDUTRA, F.
700 1 $aRUPRECHTER, G.
700 1 $aCAFFARENA, D.
700 1 $aSARAVIA, A.
773 $tVeterinary Pathology. 2024. https://doi.org/10.1177/03009858241231557 -- [In Press]
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