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	Provedor de dados Ciencia e Investigación Agraria (3) Autor Mantecón,Jorge D (3) Palavra-chave Potato (2) Alternaria solani (1) Argentina (1) Bacillus (1) Brown spot (1) Chemical and biological control (1) Chemical control (1) Disease control (1) Diseases (1) Early blight (1) Fungicides (1) Late blight (1) Phytophthora infestans (1) Potato diseases (1) Prediction model (1) Solanum (1) Solanum tuberosum (1) Soybean (1) Yield increases (1) Mais... Tipo do documento Journal article (3) Ano 2009 (2) 2008 (1) País Chile (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Efficacy of chemical and biological strategies for controlling the soybean brown spot (Septoria glycines) Ciencia e Investigación Agraria Mantecón,Jorge D. Soybean {Glycine max) is currently the most widely grown and rapidly expanding crop in Argentina, and brown spot caused by Septoria glycines is a major foliage disease that affects this crop. Triáis in the 2005 and 2006 growing seasons were undertaken using soybean (Glycine max) cv. Nidera A4800 RR. A randomized complete block design was used with four replicates. Two biological fungicides, based on Bacillus subtilis or B. pumilus, and four conventional fungicides, pyraclostrobin in combination with epoxiconazole (Opera 25 SC, BASF Argentina), azoxystrobin (Amistar 25 SC, Syngenta Argentina), trifloxystrobin in combination with cyproconazole (Sphere 267,5 EC, Bayer, Argentina), and tebuconazole (Folicur 25 EC, Bayer, Argentina), were evaluated. Fungicides... Tipo: Journal article Palavras-chave: Bacillus; Chemical and biological control; Brown spot; Diseases; Fungicides; Soybean. Ano: 2008 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000200011 Importance of potato late blight in Argentina, and the effect of fungicide treatments on yield increments over twenty years Ciencia e Investigación Agraria Mantecón,Jorge D. Late blight (Phytophthora infestans) is the most destructive fungal disease of potato (Solanum tuberosum) in Argentina, reducing yields considerably. During the 1986-2005 growing seasons, fungicide treatments to control potato late blight were performed using mancozeb (Dithane M80 WP, Dow AgroScience Argentina, 1986-2005) every 7 d, metalaxil+mancozeb (Ridomil MZ 72 WP, Syngenta Agro Argentina, 1986-1995) every 14 d, and mefenoxam+mancozeb (Ridomil Gold 68 WP, 1996-2005) every 7 d. Blight severity was rated five times each season on the basis of the percentage of diseased foliage caused by late blight. Five visual assessments of infection were used to calcúlate the area under the disease-progress curve (AUDPC, foliar blight x day). Marketable (>60 g)... Tipo: Journal article Palavras-chave: Chemical control; Late blight; Phytophthora infestans; Potato; Potato diseases; Solanum; Yield increases. Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100011 Control of potato early blight with triazole fungicide using preventive and curative spraying, or a forecasting system Ciencia e Investigación Agraria Mantecón,Jorge D. During the 2005 and 2006 growing seasons, two field trials were conducted at the INTA Balcarce Experimental Station (Argentina) to study the control of potato early blight (Alternaria solani). Uncut virus-free seed tubers of potato (Solanum tuberosum) cv. Pampeana PNTA that were susceptible to early blight and resistant to late blight were machine planted in 0.20-m intervals in rows spaced 0.8 mapart. Each plot consisted of 4 rows that were 5 meters long. Difenoconazole (Bogard 25EC) was sprayed weekly at a rate of 0.25 L· ha-1 or bi-weekly at a rate of 0.50 L· ha-1 on a preventive program and on a curative program. The same treatments and rates were also applied when the forecast model (Specware 6.02) reached 300 P-Days after emergence, and applications... Tipo: Journal article Palavras-chave: Alternaria solani; Argentina; Disease control; Early blight; Potato; Prediction model; Solanum tuberosum. Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000200013 Registros recuperados: 3 Primeira ... 1 ... Última

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