Relationship between IC50determined in vitro/in vivoand the fungicide rate used in the Field

Published data containing fungicide concentrations that control 50% (IC50) of a given fungus were analyzed. In the analysis we considered: (i) the IC50 determined in vitroand in vivofor a given fungicide and for a specific fungus; (ii) the concentration (g/ha) of active ingredient for the fungicide...

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Veröffentlicht in:Summa phytopathologica 2015-03, Vol.41 (1), p.49-53
Hauptverfasser: Reis, Erlei Melo, Zanatta, Mateus, Carmona, Marcelo, Menten, José Otávio Machado
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description Published data containing fungicide concentrations that control 50% (IC50) of a given fungus were analyzed. In the analysis we considered: (i) the IC50 determined in vitroand in vivofor a given fungicide and for a specific fungus; (ii) the concentration (g/ha) of active ingredient for the fungicide indicated to control a specific disease in the field; (iii) water volume of 120/L used in the spray; (iv) the fungicide a.i. concentration (mg/L) in 120 L volume; (v) and the ratio of the concentration used in the field with that determined in the laboratory. The analysis were performed by using IC50 data for DMIs, QoIs, a carbamate and a benzimidazol against the following fungi Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearum, Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhiziand Corynespora cassiicola. The fungicide concentrations sprayed in the field were 33.9 (D. siccansand trifloxystrobin) to 500,000.0 (E. turcicumand iprodione) times higher than that determined in the laboratory. It was concluded that the IC50 was not related to the concentration used in the field and therefore should be used to compare the power among fungicides and to monitor the fungal sensitivity shift towards fungicides Analisou-se trabalhos publicados contendo valores da concentração de um fungicida que controla 50% (CI50) um dado fungo. Na análise considerou-se: (i) a CI50 determinada in vitroe in vivopara um dado fungicida e para um fungo específico; (ii) a concentração (g/ha) de ingrediente ativo do fungicida indicada para o controle da doença alvo no campo; (iii) volume de água de 120/L usado na pulverização; (iv) a concentração (mg/L) de i.a. dos fungicidas nesse volume (120 L/ha); (v) e determinou-se a relação da concentração usada no campo com a determinada no laboratório. As análises foram feitas com dados da CI50de fungicidas IDMs, IQes, um carbamato e um benzimidazol e com os seguintes fungos: Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearume Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhizie Corynespora cassiicola. A concentração do fungicida na calda pulverizada no campo variou de 33,9 (D. siccanse trifloxistrobina) a 500.000,0 (E. turcicume iprodiona) vezes superior a determinada em laboratório. Concluiu-se que a CI50 não teve relação com a concentração usada no campo e por isso deve ser usada na comparação da potência entre fungicidas e no monitoramento da sensibilidade de
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In the analysis we considered: (i) the IC50 determined in vitroand in vivofor a given fungicide and for a specific fungus; (ii) the concentration (g/ha) of active ingredient for the fungicide indicated to control a specific disease in the field; (iii) water volume of 120/L used in the spray; (iv) the fungicide a.i. concentration (mg/L) in 120 L volume; (v) and the ratio of the concentration used in the field with that determined in the laboratory. The analysis were performed by using IC50 data for DMIs, QoIs, a carbamate and a benzimidazol against the following fungi Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearum, Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhiziand Corynespora cassiicola. The fungicide concentrations sprayed in the field were 33.9 (D. siccansand trifloxystrobin) to 500,000.0 (E. turcicumand iprodione) times higher than that determined in the laboratory. It was concluded that the IC50 was not related to the concentration used in the field and therefore should be used to compare the power among fungicides and to monitor the fungal sensitivity shift towards fungicides Analisou-se trabalhos publicados contendo valores da concentração de um fungicida que controla 50% (CI50) um dado fungo. Na análise considerou-se: (i) a CI50 determinada in vitroe in vivopara um dado fungicida e para um fungo específico; (ii) a concentração (g/ha) de ingrediente ativo do fungicida indicada para o controle da doença alvo no campo; (iii) volume de água de 120/L usado na pulverização; (iv) a concentração (mg/L) de i.a. dos fungicidas nesse volume (120 L/ha); (v) e determinou-se a relação da concentração usada no campo com a determinada no laboratório. As análises foram feitas com dados da CI50de fungicidas IDMs, IQes, um carbamato e um benzimidazol e com os seguintes fungos: Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearume Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhizie Corynespora cassiicola. A concentração do fungicida na calda pulverizada no campo variou de 33,9 (D. siccanse trifloxistrobina) a 500.000,0 (E. turcicume iprodiona) vezes superior a determinada em laboratório. 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In the analysis we considered: (i) the IC50 determined in vitroand in vivofor a given fungicide and for a specific fungus; (ii) the concentration (g/ha) of active ingredient for the fungicide indicated to control a specific disease in the field; (iii) water volume of 120/L used in the spray; (iv) the fungicide a.i. concentration (mg/L) in 120 L volume; (v) and the ratio of the concentration used in the field with that determined in the laboratory. The analysis were performed by using IC50 data for DMIs, QoIs, a carbamate and a benzimidazol against the following fungi Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearum, Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhiziand Corynespora cassiicola. The fungicide concentrations sprayed in the field were 33.9 (D. siccansand trifloxystrobin) to 500,000.0 (E. turcicumand iprodione) times higher than that determined in the laboratory. It was concluded that the IC50 was not related to the concentration used in the field and therefore should be used to compare the power among fungicides and to monitor the fungal sensitivity shift towards fungicides Analisou-se trabalhos publicados contendo valores da concentração de um fungicida que controla 50% (CI50) um dado fungo. Na análise considerou-se: (i) a CI50 determinada in vitroe in vivopara um dado fungicida e para um fungo específico; (ii) a concentração (g/ha) de ingrediente ativo do fungicida indicada para o controle da doença alvo no campo; (iii) volume de água de 120/L usado na pulverização; (iv) a concentração (mg/L) de i.a. dos fungicidas nesse volume (120 L/ha); (v) e determinou-se a relação da concentração usada no campo com a determinada no laboratório. As análises foram feitas com dados da CI50de fungicidas IDMs, IQes, um carbamato e um benzimidazol e com os seguintes fungos: Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearume Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhizie Corynespora cassiicola. A concentração do fungicida na calda pulverizada no campo variou de 33,9 (D. siccanse trifloxistrobina) a 500.000,0 (E. turcicume iprodiona) vezes superior a determinada em laboratório. 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In the analysis we considered: (i) the IC50 determined in vitroand in vivofor a given fungicide and for a specific fungus; (ii) the concentration (g/ha) of active ingredient for the fungicide indicated to control a specific disease in the field; (iii) water volume of 120/L used in the spray; (iv) the fungicide a.i. concentration (mg/L) in 120 L volume; (v) and the ratio of the concentration used in the field with that determined in the laboratory. The analysis were performed by using IC50 data for DMIs, QoIs, a carbamate and a benzimidazol against the following fungi Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearum, Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhiziand Corynespora cassiicola. The fungicide concentrations sprayed in the field were 33.9 (D. siccansand trifloxystrobin) to 500,000.0 (E. turcicumand iprodione) times higher than that determined in the laboratory. It was concluded that the IC50 was not related to the concentration used in the field and therefore should be used to compare the power among fungicides and to monitor the fungal sensitivity shift towards fungicides Analisou-se trabalhos publicados contendo valores da concentração de um fungicida que controla 50% (CI50) um dado fungo. Na análise considerou-se: (i) a CI50 determinada in vitroe in vivopara um dado fungicida e para um fungo específico; (ii) a concentração (g/ha) de ingrediente ativo do fungicida indicada para o controle da doença alvo no campo; (iii) volume de água de 120/L usado na pulverização; (iv) a concentração (mg/L) de i.a. dos fungicidas nesse volume (120 L/ha); (v) e determinou-se a relação da concentração usada no campo com a determinada no laboratório. As análises foram feitas com dados da CI50de fungicidas IDMs, IQes, um carbamato e um benzimidazol e com os seguintes fungos: Bipolaris sorokiniana, Drechslera tritici-repentis, D. siccans, Fusarium graminearume Puccinia triticina, Exserohilum turcicum, Phakopsora pachyrhizie Corynespora cassiicola. A concentração do fungicida na calda pulverizada no campo variou de 33,9 (D. siccanse trifloxistrobina) a 500.000,0 (E. turcicume iprodiona) vezes superior a determinada em laboratório. Concluiu-se que a CI50 não teve relação com a concentração usada no campo e por isso deve ser usada na comparação da potência entre fungicidas e no monitoramento da sensibilidade de fungos.</abstract><doi>10.1590/0100-5405/1997</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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title Relationship between IC50determined in vitro/in vivoand the fungicide rate used in the Field
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