Publicação: Protectives and systemic fungicides in the Corynespora cassiicola control in greenhouse conditions
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2018-07-01
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Univ Estadual Mato Grosso Sul
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Resumo
The soybean target spot is gaining notoriety in Brazil, with few studies aimed at identifying efficient chemical controls. The objective was to evaluate the effect of protective fungicides, systemic and protective associated with systemic in control of soybean target spot in the greenhouse. The experiment was conducted in a completely randomized design, with seven replications, using soybean plants of the M6410 IPRO variety. The fungicide copper oxychloride, was previously applied to plants in V4 stage and the Trifloxystrobin + Prothioconazole fungicide, Azoxystrobin + Cyproconazole and fluxapyroxad + pyraclostrobin alone and in combination were applied after the inoculation of conidia. The evaluations were performed weekly, based on a scale of disease severity notes. The severity data were used to calculate the area under the disease progress curve (AUDPC). All treatments were efficient in reducing the severity of the soybean target spot at the end of the evaluations. The copper + SC + Azoxystrobin + Ciproconazole treatment was the most suppressing the development of the disease throughout the experiment, showing that the association of protective and systemic fungicides can be used as a viable practice to control this disease.
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Português
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Revista De Agricultura Neotropical. Dourados: Univ Estadual Mato Grosso Sul, v. 5, n. 3, p. 65-69, 2018.
