Evaluation of fungicides to control Asperisporium caricae in papaya crop/Avaliacao de fungicidas no controle de Asperisporium caricae na cultura do mamoeiro

• Published in: Revista Brasileira de fruticultura Vol. 33; no. S1; p. 399
• Main Authors: Barreto, Livia Felicio, Savan, Paulo Alberto Legori, De Lima, Lonjore Leocadio, Lodo, Bruno Nascimento
• Format: Journal Article
• Language: Spanish
• Published: Sociedade Brasileira de Fruticultura 01.10.2011
• Subjects: Analysis; Fungicides; Mycoses; Smallpox
• ISSN: 0100-2945

Among the fungal diseases as smallpox (Asperisporium caricae) is the most important diseases of papaya. Objectives of this article were to evaluate the efficacy of fungicides to control smallpox papaya. The experiment was conducted in a commercial area in the municipality of Taquarintiga--SP in RBD with five treatments and four replications. The treatments were Tebuconazole + trifloxystrobin (0.06 L/100L), Pyraclostrobin (0.04 L/100L) Difenoconazol (0.03 L/100L), Azoxystrobin and a witness. Were performed 3 evaluations, which were evaluated the severity of smallpox through diagrammatic scale, on leaves and fruits of three plants previously marked and on each assessment two leaves and four fruits were chosen randomly and evaluated. The data were subjected to analysis of variance by F test and means compared by Scott-Knott test (p <0.05). The products Tebuconazol + trifloxystrobin, Pyraclostrobin, Difenoconazol and Azoxystrobin controlled smallpox, but were not effective for control of anthracnose. Index terms: smallpox, severity, disease. Dentre as doencas fungicas do mamoeiro, a variola (Asperisporium caricae) e umas das doencas mais importantes. Os objetivos deste trabalho foram avaliar a eficacia de fungicidas no controle da variola em folhas e frutos do mamoeiro. O experimento foi conduzido em area comercial, no municipio de Taquarintiga - SP, em delineamento de blocos casualizados, com cinco tratamentos e quatro repeticoes. Os tratamentos foram tebuconazol + trifloxistrobina (0, 06 L.100[L.sup.-1] de agua), piraclostrobina (0, 04 L.100[L.sup.-1] de agua), difenoconazol (0, 03 L.100[L.sup.-1] de agua), azoxistrobina (128 g.[ha.sup.-1]) e a testemunha. Foram realizadas tres avaliacoes, nas quais foram avaliadas a severidade da variola atraves de escala diagramatica, nas folhas e nos frutos de tres plantas previamente marcadas. Os dados registrados foram submetidos a analise de variancia pelo teste F, e as medias, comparadas pelo teste de Scott-Knott (p<0, 05). Os fungicidas tebuconazol+trifloxistrobina, piraclostrobina, difenoconazol e azoxistrobina foram eficientes no controle da variola. Termos para indexacao: variola; severidade; doenca.