Data/hora: 23/05/2024 10:36:39

Biblioteca(s): 	Epagri-Sede.	
Data corrente: 	26/08/2020	
Data da última atualização: 	26/08/2020	
Autoria: 	ARAÚJO, E. R.; RESENDE, R. S.	
Título: 	Propineb efficiency in controlling downy mildew of onion under field conditions.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Australasian Plant Disease Notes, Berlim, v. 15, n. 34, p. 1-3, 2020.	
Idioma: 	Inglês	
Conteúdo: 	Downy mildew of onion has worldwide occurrence. This study aimed to evaluate the effect of weekly sprays of different active ingredients on the area under a disease progress curve (AUDPC) and on the commercial yield of onion, under field conditions. We observed that propineb sprays resulted in the highest values of yield in 2017 (32.98 t ha&#8722;1) and 2018 (20.70 t ha&#8722;1). Propineb (130.66) and metalaxyl-M&#8201;+&#8201;mancozeb (144.66) presented the lowest AUDPC values in 2017. Metalaxyl-M (100 g ha&#8722;1)&#8201;+&#8201;mancozeb (1600 g ha&#8722;1), bentiavalicarb-isopropyl (56.25 mL ha&#8722;1)&#8201;+&#8201;chlorothalonil (562.5 mL ha&#8722;1) and bentiavalicarb-isopropyl (40 mL ha&#8722;1)&#8201;+&#8201;fluazinam (100 mL ha&#8722;1) resulted in higher yields than the control (water) in the two years of testing. We emphasise the importance of using fungicides with protective action to control downy mildew of onion.	
Palavras-Chave: 	Allium cepa; Chemical control; Peronospora destructor.	
Categoria do assunto: 	F Plantas e Produtos de Origem Vegetal	
URL: 	http://intranetdoc.epagri.sc.gov.br/producao_tecnico_cientifica/DOC_46469.pdf	
Registro original: 	Epagri-Sede (Epagri-Sede)	
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