The Experts below are selected from a list of 210 Experts worldwide ranked by ideXlab platform
Rubens Belfort - One of the best experts on this subject based on the ideXlab platform.
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Antihelminthic drugs in diffuse unilateral subacute neuroretinitis.
American journal of ophthalmology, 1998Co-Authors: Antonio Marcelo Barbante Casella, Michel Eid Farah, Rubens BelfortAbstract:To evaluate the efficacy of ivermectin and thiabendazole in confirmed cases of diffuse unilateral subacute neuroretinitis. Two patients with diffuse unilateral subacute neuroretinitis were treated with anthelminthic drugs. The first patient was treated with ivermectin and the second, with thiabendazole. The worms were still mobile after treatment with ivermectin or thiabendazole. With the application of photocoagulation, the organisms were destroyed, and the patients' vision improved. In these two patients, ivermectin and thiabendazole were not effective in treating confirmed diffuse unilateral subacute neuroretinitis.
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antihelminthic drugs in diffuse unilateral subacute neuroretinitis
American Journal of Ophthalmology, 1998Co-Authors: Antonio Marcelo Barbante Casella, Michel Eid Farah, Rubens BelfortAbstract:Purpose: To evaluate the efficacy of ivermectin and thiabendazole in confirmed cases of diffuse unilateral subacute neuroretinitis. Method: Two patients with diffuse unilateral subacute neuroretinitis were treated with anthelminthic drugs. The first patient was treated with ivermectin and the second, with thiabendazole. Results: The worms were still mobile after treatment with ivermectin or thiabendazole. With the application of photocoagulation, the organisms were destroyed, and the patients' vision improved. Conclusion: In these two patients, ivermectin and thiabendazole were not effective in treating confirmed diffuse unilateral subacute neuroretinitis.
Antonio Marcelo Barbante Casella - One of the best experts on this subject based on the ideXlab platform.
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Antihelminthic drugs in diffuse unilateral subacute neuroretinitis.
American journal of ophthalmology, 1998Co-Authors: Antonio Marcelo Barbante Casella, Michel Eid Farah, Rubens BelfortAbstract:To evaluate the efficacy of ivermectin and thiabendazole in confirmed cases of diffuse unilateral subacute neuroretinitis. Two patients with diffuse unilateral subacute neuroretinitis were treated with anthelminthic drugs. The first patient was treated with ivermectin and the second, with thiabendazole. The worms were still mobile after treatment with ivermectin or thiabendazole. With the application of photocoagulation, the organisms were destroyed, and the patients' vision improved. In these two patients, ivermectin and thiabendazole were not effective in treating confirmed diffuse unilateral subacute neuroretinitis.
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antihelminthic drugs in diffuse unilateral subacute neuroretinitis
American Journal of Ophthalmology, 1998Co-Authors: Antonio Marcelo Barbante Casella, Michel Eid Farah, Rubens BelfortAbstract:Purpose: To evaluate the efficacy of ivermectin and thiabendazole in confirmed cases of diffuse unilateral subacute neuroretinitis. Method: Two patients with diffuse unilateral subacute neuroretinitis were treated with anthelminthic drugs. The first patient was treated with ivermectin and the second, with thiabendazole. Results: The worms were still mobile after treatment with ivermectin or thiabendazole. With the application of photocoagulation, the organisms were destroyed, and the patients' vision improved. Conclusion: In these two patients, ivermectin and thiabendazole were not effective in treating confirmed diffuse unilateral subacute neuroretinitis.
Bettiol Wagner - One of the best experts on this subject based on the ideXlab platform.
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Effect of the alternative products for control of green mold (Penicillium digitatum) in post-harvest citrus fruit
Sociedade Brasileira de Fruticultura, 2002Co-Authors: Franco, Daniel Andrade De Siqueira, Bettiol WagnerAbstract:O objetivo do trabalho foi verificar a ocorrência de sinergismo entre misturas de produtos alternativos aos fungicidas, para o controle do bolor verde (Penicillium digitatum) em pós-colheita de citros. Foram testados dez produtos individualmente e trinta e cinco combinações destes produtos dois a dois, em comparação com Tiabendazole e testemunha, com e sem inoculação. Os produtos testados não apresentaram efeito de sinergismo, exceto a mistura carbonato de Na + ácido bórico. Carbonato de Na e ácido bórico controlaram a doença em 78 e 87%, respectivamente, e, utilizando a mistura, o controle foi de 93%. Destacaram-se, ainda no controle da doença, o bicarbonato de Na, metabissulfito de Na e as misturas de bicarbonato de sódio + ácido bórico, carbonato de Na + carbonato de K, carbonato de Na + sorbato de K, bicarbonato de Na + carbonato de Na, controlando 92; 77; 81; 77; 75 e 71%, respectivamente. O Tiabendazole utilizado como padrão controlou totalmente a doença.The objective of this work was verify the ocurrence of synergism of mixtures for alternative products to the fungicides for the control of the green mold (Penicillium digitatum) in post-harvest citrus fruits. The efficiency of ten products, tested individually, and thirty five combinations among them, in pairs, were compared to thiabendazole and control, with and without inoculation. The products didn't present a synergism effect, except the mixture sodium carbonate + boric acid, that had a disease control of 93%. The products, sodium carbonate and boric acid controled 78 and 87%, respectively. The sodium bicarbonate, sodium methabisulphite and the mixtures of sodium bicarbonate + boric acid, sodium carbonate + potassium carbonate, sodium carbonate + potassium sorbate, sodium bicarbonate + sodium carbonate had a disease control of 92%, 77%, 81%, 77%, 75% and 71%, respectively. The fungicide treatment with thiabendazole used by standard had a whole disease control
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Efeito de produtos alternativos para o controle do bolor verde (Penicillium digitatum) em pós-colheita de citros
Sociedade Brasileira de Fruticultura, 2002Co-Authors: Franco, Daniel Andrade De Siqueira, Bettiol WagnerAbstract:O objetivo do trabalho foi verificar a ocorrência de sinergismo entre misturas de produtos alternativos aos fungicidas, para o controle do bolor verde (Penicillium digitatum) em pós-colheita de citros. Foram testados dez produtos individualmente e trinta e cinco combinações destes produtos dois a dois, em comparação com Tiabendazole e testemunha, com e sem inoculação. Os produtos testados não apresentaram efeito de sinergismo, exceto a mistura carbonato de Na + ácido bórico. Carbonato de Na e ácido bórico controlaram a doença em 78 e 87%, respectivamente, e, utilizando a mistura, o controle foi de 93%. Destacaram-se, ainda no controle da doença, o bicarbonato de Na, metabissulfito de Na e as misturas de bicarbonato de sódio + ácido bórico, carbonato de Na + carbonato de K, carbonato de Na + sorbato de K, bicarbonato de Na + carbonato de Na, controlando 92; 77; 81; 77; 75 e 71%, respectivamente. O Tiabendazole utilizado como padrão controlou totalmente a doença.The objective of this work was verify the ocurrence of synergism of mixtures for alternative products to the fungicides for the control of the green mold (Penicillium digitatum) in post-harvest citrus fruits. The efficiency of ten products, tested individually, and thirty five combinations among them, in pairs, were compared to thiabendazole and control, with and without inoculation. The products didn't present a synergism effect, except the mixture sodium carbonate + boric acid, that had a disease control of 93%. The products, sodium carbonate and boric acid controled 78 and 87%, respectively. The sodium bicarbonate, sodium methabisulphite and the mixtures of sodium bicarbonate + boric acid, sodium carbonate + potassium carbonate, sodium carbonate + potassium sorbate, sodium bicarbonate + sodium carbonate had a disease control of 92%, 77%, 81%, 77%, 75% and 71%, respectively. The fungicide treatment with thiabendazole used by standard had a whole disease control.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq
Pascholati, Sérgio Florentino - One of the best experts on this subject based on the ideXlab platform.
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Quitosana e fungicidas no controle pós-colheita de Guignardia citricarpa e na qualidade de laranjas 'Pêra Rio'
Grupo Paulista de Fitopatologia, 2011Co-Authors: Rappussi, Maria Cristina Canale, Benato, Eliane Aparecida, Cia Patrícia, Pascholati, Sérgio FlorentinoAbstract:Citrus fruits are affected by the black spot disease caused by the fungus Guignardia citricarpa. Chitosan can be used as covering for fruits and may delay the ripening process and inhibit the growth of some fungi. Thus, the control of citrus black spot using chitosan and the fungicides thiabendazole and imazalil was assessed in addition to the physicochemical quality of 'Pêra Rio' oranges. The oranges were immersed into chitosan, thiabendazole or imazalil, and in chitosan mixed with both fungicides. The fruits were then stored at 25 °C, 80% RH, for 7 days and, after this storage period, subjected to physicochemical analyses. Chitosan in association with the fungicides reduced black spot in 'Pêra Rio' oranges and delayed the change in the orange skin colour from green to yellow during the postharvest storage. Total soluble solids, titratable acidity, pH, ascorbic acid content and ratio were not influenced by the treatments. Thus, chitosan applied with the fungicides thiabendazole and imazalil showed potential to control the development of black spot lesions on 'Pêra Rio' oranges during the postharvest period.Os frutos cítricos são afetados pela pinta preta dos citros, causada pelo fungo Guignardia citricarpa. A quitosana pode ser utilizada como revestimento de frutos, sendo capaz de atrasar o processo de maturação e inibir o crescimento de fungos. Dessa maneira, o controle da pinta preta utilizando quitosana e os fungicidas Tiabendazole e imazalil foi avaliado, assim como a qualidade físico-química de laranjas 'Pêra Rio'. Frutos de laranja foram imersos em quitosana, Tiabendazole ou imazalil, e em quitosana em mistura com ambos os fungicidas. Os frutos foram armazenados a 25°C, 80% UR, por 7 dias e após o período de armazenamento foram submetidos a análises fisico-químicas. Quitosana em associação com os fungicidas reduziu o aparecimento da pinta preta em laranjas 'Pêra Rio' e atrasou a alteração de verde para amarelo da cor da casca das laranjas durante o armazenamento pós-colheita. Os sólidos solúveis totais, a acidez titulável, o pH, o ácido ascórbico e o ratio não sofreram influência dos tratamentos. Deste modo, a quitosana em aplicação com os fungicidas tiabendazol e imazalil aumentou o potencial de controle da pinta preta em laranjas 'Pêra Rio' em pós-colheita, mantendo a qualidade dos frutos cítricos
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Quitosana e fungicidas no controle pós-colheita de Guignardia citricarpa e na qualidade de laranjas 'Pêra Rio'
Grupo Paulista de Fitopatologia, 2011Co-Authors: Rappussi, Maria Cristina Canale, Benato, Eliane Aparecida, Cia Patrícia, Pascholati, Sérgio FlorentinoAbstract:Citrus fruits are affected by the black spot disease caused by the fungus Guignardia citricarpa. Chitosan can be used as covering for fruits and may delay the ripening process and inhibit the growth of some fungi. Thus, the control of citrus black spot using chitosan and the fungicides thiabendazole and imazalil was assessed in addition to the physicochemical quality of 'Pêra Rio' oranges. The oranges were immersed into chitosan, thiabendazole or imazalil, and in chitosan mixed with both fungicides. The fruits were then stored at 25 °C, 80% RH, for 7 days and, after this storage period, subjected to physicochemical analyses. Chitosan in association with the fungicides reduced black spot in 'Pêra Rio' oranges and delayed the change in the orange skin colour from green to yellow during the postharvest storage. Total soluble solids, titratable acidity, pH, ascorbic acid content and ratio were not influenced by the treatments. Thus, chitosan applied with the fungicides thiabendazole and imazalil showed potential to control the development of black spot lesions on 'Pêra Rio' oranges during the postharvest period.Os frutos cítricos são afetados pela pinta preta dos citros, causada pelo fungo Guignardia citricarpa. A quitosana pode ser utilizada como revestimento de frutos, sendo capaz de atrasar o processo de maturação e inibir o crescimento de fungos. Dessa maneira, o controle da pinta preta utilizando quitosana e os fungicidas Tiabendazole e imazalil foi avaliado, assim como a qualidade físico-química de laranjas 'Pêra Rio'. Frutos de laranja foram imersos em quitosana, Tiabendazole ou imazalil, e em quitosana em mistura com ambos os fungicidas. Os frutos foram armazenados a 25°C, 80% UR, por 7 dias e após o período de armazenamento foram submetidos a análises fisico-químicas. Quitosana em associação com os fungicidas reduziu o aparecimento da pinta preta em laranjas 'Pêra Rio' e atrasou a alteração de verde para amarelo da cor da casca das laranjas durante o armazenamento pós-colheita. Os sólidos solúveis totais, a acidez titulável, o pH, o ácido ascórbico e o ratio não sofreram influência dos tratamentos. Deste modo, a quitosana em aplicação com os fungicidas tiabendazol e imazalil aumentou o potencial de controle da pinta preta em laranjas 'Pêra Rio' em pós-colheita, mantendo a qualidade dos frutos cítricos.Fundação de Apoio à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq
Lolas Caneo, Mauricio Informante) - One of the best experts on this subject based on the ideXlab platform.
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Sensibilidad a fungicidas de aislados de Botrytis cinerea obtenidos desde frutos de manzana con pudrición calicinal durante cosecha en la región del Maule
Universidad de Talca (Chile). Escuela de Agronomía., 2019Co-Authors: Faúndez Aravena, Constanza Javiera, Díaz Ulloa, Gonzalo Guía), Lolas Caneo, Mauricio Informante)Abstract:38 p.El manzano (Malus x domestica) es una especie frutal de gran importancia para Chile, por ser el principal país exportador del hemisferio sur. Los principales destinos de las manzanas chilenas son Estados Unidos y Europa, lo cual aporta de manera importante al desarrollo económico del país. Actualmente hay una superficie de 37.297 ha plantadas de manzanos, concentrada entre las regiones del Maule y O´Higgins con un 60 y 20% de la superficie, respectivamente. Sin embargo, hay problemas de carácter fungoso que producen una disminución en la producción y en la calidad de frutos, entre estas se destaca por su importancia la pudrición calicinal causada por Botrytis cinerea. Es por esta razón, que el objetivo del presente estudio fue evaluar la sensibilidad in vitro del crecimiento micelial de aislados de B. cinerea obtenidos desde frutos con pudrición calicinal en cosecha a los ingredientes activos fenhexamida (grupo hidroxianilida), fludioxonil (grupo fenilpirroles), metil-tiofanato (grupo bencimidazoles), piraclostrobin (grupo inhibidor de la quinona externa, QoI), pirimetanil (grupo anilinopirimidinas, tebuconazol (grupo inhibidor de la desmetilasa, DMI), tiabendazol (grupo bencimidazoles) y sulfato de cobre (grupo inorgánico) a las dosis recomendadas por los fabricantes. Los resultados obtenidos indican que todos los aislados de B. cinerea fueron sensibles a los fungicidas fenhexamida, fludioxonil, metil-tiofanato, piraclostrobin, pirimetanil, tebuconazole, tiabendazol y sulfato de cobre. Independiente de los aislados, los fungicidas de mayor efectividad fueron metil-tiofanato y tiabendazol (grupo bencimidazoles), pirimetanil (grupo anilinopirimidina) y tebuconazole (grupo DMI). Sin embargo, un 80% de los aislados mostraron muy baja sensibilidad al fungicida inorgánico sulfato de cobre./ABSTRACT:Chile is the lead country responsible for the export of apple fruits (Malus x domestica) in the southern hemisphere, with a cultivated area of 37,297 ha. The Maule Region is the region responsible for the largest production of the Chilean apple industry, where more than 60% of Chilean commercial apples are cultivated. However, the production of fresh apples is affected by several problems. One being where several fungi cause fruit rots which can produce considerable losses of fruits during harvest or postharvest. Therefore, the fungus Botrytis cinerea associated with calyx-end rot of apples has been recently reported to be responsible for the outbreaks in the Maule Region, Chile. For this reason, the objective of the present study was to evaluate the in vitro sensitivity of mycelial growth of Botrytis cinerea isolates obtained from fruits with calyx-end rot. The active ingredients evaluated were fenhexamid (Hydroxyanilide group), fludioxonil (phenylpyrrole group), thiophanate-methyl (benzimidazoles group), pyraclostrobin (external quinone inhibitor group, QoI), pyrimethanil (anilinopyrimidines group), tebuconazole (demethylation inhibitors group, DMI), thiabendazole (benzimidazoles group) and copper sulfate (inorganic group) at the doses recommended by the manufacturer. The results obtained indicate that all B. cinerea isolates were sensitive to the fungicides fenhexamid, fludioxonil, thiophanate-methyl, pyraclostrobin, pyrimethanil, tebuconazole and thiabendazole at the commercial doses. Of all the isolates, the most effective fungicides were the fungicide thiophanate-methyl and thiabendazole (benzimidazole group), pyrimethanil (anilino-pyrimidines group) and tebuconazole (DMI group). Several isolates of B. cinerea (80%) showed very low sensitivity to the inorganic fungicide copper sulfat
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Sensibilidad de aislados de Botrytis cinerea obtenidos desde frutos de manzanos almacenados en frío a fungicidas comerciales
Universidad de Talca (Chile). Escuela de Agronomía., 2019Co-Authors: Rodríguez Ramírez, Gabriela Andrea, Díaz Ulloa, Gonzalo Guía), Lolas Caneo, Mauricio Informante)Abstract:37 p.En los últimos años, Chile se ha posicionado como el primer exportador de manzanas (Malus x domestica) en el hemisferio sur, destacándose como uno de los principales productores a nivel mundial. La Región del Maule posee cerca de un 60% de la superficie plantada nacional y es la región que ostenta la mayor producción de este cultivo. Sin embargo, se han detectado problemas asociados a hongos fitopatógenos, que pueden causar daños en la estructura, follaje y/o frutos. Las pudriciones de frutos provocan pérdidas para las productoras frutícolas del país, afectando la calidad y condición de la fruta. Entre los patógenos fungosos que han causado problemas en manzanas en la Región del Maule, se destaca Botrytis cinerea. Este patógeno fungoso es conocido por generar resistencia a fungicidas cuando es expuesto reiteradas veces a moléculas de acción sitio específico en sucesivas temporadas. Por lo tanto, el objetivo del presente estudio fue determinar la sensibilidad de diferentes fungicidas comerciales en aislados de B. cinerea asociados a pudrición calicinal en forma in vitro evaluando la dosis comercial recomendada por los fabricantes. Los resultados obtenidos indican que todos los aislados de B. cinerea fueron sensibles a los fungicidas fenhexamida, fludioxonil, metil-tiofanato, piraclostrobin, pirimetanil, tiabendazol, tebuconazole y sulfato de cobre. Independiente de los aislados, los fungicidas de mayor efectividad fueron pirimetanil y tebuconazole. Algunos aislados de B. cinerea mostraron baja sensibilidad o nulo control con los fungicidas del grupo de los bencimidazoles (metil-tiofanato y tiabendazol) cuando se evaluó la dosis comercial. También gran parte de los aislados de B. cinerea (80%) mostraron una baja sensibilidad al fungicida inorgánico sulfato de cobre./ ABSTRACT: Currently, Chile has positioned as the leading exporter of fresh apples (Malus x domestica) in the Southern Hemisphere, standing out as one of the world's leading producers. The Maule Region has about 60% of the national planted area and is the region that has the highest production of this crop. However, problems associated with phytopathogenic fungi have been detected, causing damage to the structure, foliage and / or fruits. The apple rots cause losses for the producers, affecting the quality and condition of the fruit during storage. Among the fungal pathogens that have caused problems in apples in the Maule Region, Botrytis cinerea is a stands out. This fungal pathogen is known to generate resistance to fungicides when they are exposed repeatedly to molecules of specific site action in successive seasons. Therefore, the objective of the present study was to determine the sensitivity in vitro of different commercial fungicides in B. cinerea isolates associated with calyx-end rot, evaluating the commercial dose recommended by the manufacturers. The results obtained indicate that all B. cinerea isolates were sensitive to the fungicides fenhexamide, fludioxonil, methylthiophanate, pyraclostrobin, pyrimethanil, tebuconazole, thiabendazole y copper sulfate. Independent of the isolates, the most effective fungicides were pyrimethanil and tebuconazole. Some isolates of B. cinerea showed low sensitivity or no control with the fungicides of the group of benzimidazoles (methylthiophanate and thiabendazole) when the commercial dose was evaluated. Also, several isolates of B. cinerea (80%) showed very low sensitivity to the inorganic fungicide copper sulfat
