Consulta: subjectFacets:"Fungicide resistance"
Registros recuperados: 11
Data/hora: 13/06/2024 23:31:11

ÓLEO ESSENCIAL DE Mentha spicata REDUZ O CRESCIMENTO INICIAL DE Corynespora cassiicola in vitro
Provedor de dados: 196
Autores: Silva, Abimael Gomes; Souza, Ana Caroline de; Lopes, Beatriz Garcia; Silva, Eliamara Marques da; Vieira, Gustavo Haralampidou da Costa.
O uso de fungicidas sintéticos é uma das estratégias de manejo de doenças mais utilizadas na agricultura, porém, busca-se manejos que sejam mais sustentáveis. Dessa forma, objetivou-se avaliar o potencial de óleos essenciais de Cedrela fissilis e Mentha spicata no controle, in vitro, do crescimento micelial do patógeno Corynespora cassiicola. O trabalho foi desenvolvido no Laboratório de Fitossanidade da Universidade Estadual do Mato Grosso do Sul (UEMS), Unidade Universitária de Cassilândia-MS. Os óleos essenciais, Cedro (Cedrela fissilis) e Hortelã (Mentha spicata) foram adquiridos comercialmente. O delineamento experimental utilizado foi inteiramente casualizado, em esquema fatorial 2 categorias de óleos essenciais (hortelã e cedro) x 5 concentrações...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phytopathology; Fungicide resistance; Alternative control; Fitopatologia; Resistência a fungicidas; Controle alternativo.
Ano: 2021
URL: http://periodicosonline.uems.br/index.php/agrineo/article/view/6375

RESISTÊNCIA nas lavouras de soja: já parou para pensar no tamanho desse problema?
Provedor de dados: 14
Informação é a chave para a tomada de decisão! Plantas daninhas resistentes a herbicidas. Ferrugem da soja resistentes a fungicidas. Resistência de pragas a inseticidas.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Doença de planta; Praga de planta; Erva daninha; Resistência a produtos químicos; Soybeans; Pesticide resistance; Plant pests; Plant diseases and disorders; Fungicide resistance; Herbicide resistance; Insecticide resistance.
Ano: 2012
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/915961

Mating type, mefenoxam sensitivity, and pathotype diversity in Phytophthora infestans isolates from tomato in Brazil
Provedor de dados: 86
Autores: Miranda,Bruno Eduardo Cardozo de; Suassuna,Nelson Dias; Reis,Ailton.
The objective of this work was to characterize 79 Phytophthora infestans isolates collected in tomato (Solanum lycopersicum) fields, as to mating type, mefenoxam sensitivity, and pathotype composition. The isolates were sampled in 2006 and 2007 in seven Brazilian states as well as in the Distrito Federal. They were characterised as to mating type (n=79), sensitivity to fungicide mefenoxam (n=79), and virulence to three major resistance genes Ph-1, Ph-2, and Ph-3/Ph-4 (n=62). All isolates were of the mating type A1. Resistant isolates were detected in all sampled states, and its average frequency was superior to 50%. No difference was detected in pathotype diversity, neither between subpopulations collected in 2006 and 2007 nor between isolates grouped as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Solanum lycopersicum; Disease management; Fungicide resistance; Late blight; Pathogen variability.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000700006

Epidemiology and strategies for chemical management of powdery mildew in mango
Provedor de dados: 86
Autores: Pérez-Rodríguez,Amado; Monteón-Ojeda,Abraham; Mora-Aguilera,José Antonio; Hernández-Castro,Elías.
Abstract: The objective of this work was to evaluate phytosanitary strategies for the chemical control of powdery mildew (Oidium mangiferae) in mango, based on the alternation of active ingredients with different modes and sites of action, and to determine the environmental and epidemiological conditions that favor the development of the disease. The experiment was conducted in Guerrero, México, in commercial orchards, within a program for the development of fungicide spraying strategies. Epidemic curves were used on temporal analyses of the disease for: incidence; area under disease progression curve (AUDPC); severity; and conidial seasonality and its relationships with meteorological parameters. The disease was better controlled with the application of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mangifera indica; Oidium mangiferae; Epidemics; Fungicide resistance; Integrated pest management; Multisite fungicides.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900715

การต้านทานสารเคมี propiconazole ของเชื้อรา Bipolaris oryzae สาเหตุโรคใบจุดสีน้ำตาลในพื้นที่เขตภาคกลาง
Provedor de dados: 106
Autores: Sith Jaisong; Rasamee Dhitikiattipong; Witchuda Rattanakarn; Wanporn Khemmuk; Kanuengnij Srivilai.
Tipo: PhysicalObject
Palavras-chave: Bipolaris oryzae; Fungicide resistance; Rice brown spot; Propiconazole; Rice; Bipolaris oryzae; การต้านทานสารเคมี; โรคใบจุดสีน้ำตาล; Propiconazole.
Ano: 2012
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5436

ความไวต่อสารเคมี Propiconazole ของเชื้อรา Bipolaris oryzae สาเหตุโรคใบจุดสีน้ำตาลในพื้นที่นาภาคกลาง
Provedor de dados: 106
Autores: Sith Jaisong; Rasamee Dthikiattipong; Witchuda Rattanakarn; Wanporn Kemmuk; Kanungnid Sriwilai.
Fungicides are important tool for managing diseases in many crops. For example, managing Brown spot of rice relies on the application of fungicides. The heavy use of fungicides has triggered to the development of isolates of Bipolaris oryzae (Helminthosporium oryzae) resistant to fungicides. This survey, the farmers randomly were interviewed about fungicide application, showed that most of farmers (76%) used triazole fungicide. 18, 16, 8 and 8 % used dithiocarbamat, triazolobenzo strobirulin and benzimidazole repectively. In vitro fungicide sensitivity assays using poison media technique expressed propiconazole and haxaconazole at concentration 10 ppm inhibit completely mycelium growth. This study was undertaked for evaluating the prevalence of fungicide...
Tipo: PhysicalObject
Palavras-chave: Bipolaris oryzae; Helminthosporium oryzae; Fungicide resistance; Brown spot; Propiconazole; Triazole; Rice; เชื้อรา; ความต้านทานสารเคมีกำจัดเชื้อรา; โรคใบจุดสีน้ำตาล; โพรพิโคนาโซล; ประสิทธิภาพการควบคุมโรค.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5710

ความไวต่อสารป้องกันกำจัดเชื้อรา propiconazole ของ Bipolaris oryzae สาเหตุโรคใบจุดสีน้ำตาลของข้าว ในพื้นที่นาภาคกลาง
Provedor de dados: 106
Autores: Sith Jaisong; Rasamee Dhitikiattipong; Witchuda Rattanakarn; Wanporn Khemmuk; Kanuengnij Srivilai.
Fungicides are important tool for managing diseases in many crops. For example, managing brown spot of rice relies on the application of fungicides. The heavy use of fungicides has triggered to the development of isolates of Bipolaris oryzae (Helminthosporium oryzae) resistant to fungicides. This survey, the farmers were randomly interviewed about fungicide application, showed that most of farmers (76%) used triazole fungicide. 18, 16, 8 and 8 % used dithiocarbamat, triazolobenzo strobirulin and benzimidazole respectively. In vitro fungicide sensitivity assays using poison media technique expressed propiconazole and haxaconazole at concentration 10 ppm inhibit completely mycelium growth. This study was undertaked for evaluating the prevalence of fungicide...
Tipo: PhysicalObject
Palavras-chave: Bipolaris oryzae; Fungicide resistance; Rice brown spot disease; Propiconazole; Rice disease; ข้าว; โรคใบจุดสีน้ำตาลของข้าว; โพรพิโคนาโซล; โรคข้าว; ความต้านทานสารป้องกันกำจัดเชื้อรา.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5525

Resistência de fungos a fungicidas.
Provedor de dados: 119
Autores: GHINI, R.; KIMATI, H.
O uso contínuo de fungicidas na agricultura pode resultar na seleção de fungos fitopatogênicos resistentes, que não são controlados pelo produto. Tal problema pode gerar graves conseqüências, como aumento de custos, resíduos em alimentos e contaminações: ambientais. Os diversos segmentos da sociedade envolvidos no controle químico de doenças de plantas devem estar conscientes do problema da resistência, suas causas e soluções. Este livro aborda temas básicos como os conceitos envolvidos, os grupos de fungicidas e seus mecanismos de ação, os mecanismos e a genética da resistência, além de fatores de risco e estratégias anti-resistência. A obra foi elaborada de forma a ser utilizada por profissionais envolvidos no controle químico de doenças de plantas, como...
Tipo: Livros
Palavras-chave: Adaptabilidade; Resistencia cruzada; Grupos fungicidas; Grupo quimico.; Fungo; Fungicida; Resistência a pesticida; Doença de planta; Hospedeiro; Patógeno; Patogenicidade; Risco.; Fungicide resistance; Cross resistance.
Ano: 2000
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/13231

Baseline sensitivity of Brazilian Mycosphaerella fijiensis isolates to protectant and systemic fungicides.
Provedor de dados: 119
Autores: GOMES, L. I. S.; BIBIANO, L. B. J.; SILVA, G. F. da; HANADA, R. E.; MIZUBUTI, E. S. G.
Black Sigatoka caused by Mycosphaerella fijiensis is a foliar disease that affects banana plants and large amounts of fungicides are required to prevent crop losses. Intensive applications of single-site fungicides can select for fungicide-resistant isolates. The objective of this study was to assess the sensitivity of 60 isolates of M. fijiensis to commonly used fungicides.
Tipo: Separatas
Palavras-chave: Black leaf streak disease; Sigatoka-negra; Protectant fungicides; Strobilurin.; Mycosphaerella Fijiensis.; Fungicide resistance; Tebuconazole; Thiophanate-methyl.
Ano: 2014
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1007698

Resistance of Botrytis cinerea from strawberry (Fragaria x ananassa Duch.) to fungicides in Michoacan Mexico
Provedor de dados: 115
Autores: Álvarez-Medina,Adán; Silva-Rojas,Hilda V.; Leyva-Mir,Santos G.; Marbán-Mendoza,Nahum; Rebollar-Alviter,Ángel.
Abstract Gray mold caused by Botrytis cinerea Pers. is one of the most important diseases of strawberry (Fragaria x ananassa Duch.), and fungicide resistance is a concern. The objective of this research was to evaluate the sensitivity of B. cinerea isolates to the fungicides iprodione and thiophanate-methyl in two strawberry-producing areas in Mexico. Sixty-two B. cinerea isolates collected from strawberry fruits from Maravatio Valley (MV) and Zamora-Jacona Valley (ZJ) in Michoacan, Mexico, were used to determine the sensitivity distribution based on mycelium growth (MG) and conidial germination (CG). Each monosporic isolate was grown in 4 plates containing media amended with 0, 0.1, 0.5, 1, 10, 50 and 100 µg mL-1 of iprodione and 0, 0.1, 10, 100, 1000 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fungicide resistance; Benzimidazole; Dicarboximides.
Ano: 2017
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000700783

Mechanisms and significance of fungicide resistance
Provedor de dados: 58
Autores: Deising,Holger B.; Reimann,Sven; Pascholati,Sérgio F.
In this review article, we show that occurrence of fungicide resistance is one of the most important issues in modern agriculture. Fungicide resistance may be due to mutations of genes encoding fungicide targets (qualitative fungicide resistance) or to different mechanisms that are induced by sub-lethal fungicide stress. These mechanisms result in different and varying levels of resistance (quantitative fungicide resistance). We discuss whether or not extensive use of fungicides in agricultural environments is related to the occurrence of fungicide resistance in clinical environments. Furthermore, we provide recommendations of how development of fungicide resistant pathogen populations may be prevented or delayed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus black spot disease; Disease management; Fungicide resistance; Efflux transporters; Wheat tan spot disease.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000200017