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| Registros recuperados: 292 | |
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| Mariconi,F.A.M.; Geraldi,F. I.; Biondo,C.J.; Donatoni,J.L.; Clari,A. I.; Raizer,A.J.; Arashiro,F.Y.. |
| O presente trabalho foi realizado com o objetivo de continuar os experimentos que visam o combate ao "ácaro branco" Polyphagotarsonemus latus (Banks, 1904) em algodoeiro. Quatro tratamentos foram aplicados em pulverização convencional e 2 outros produtos com "Electrodyn", num total de 7 tratamentos (com a testemunha). Vejamos quais são estes: A) testemunha; B) dicofol; C) bromopropilato; D) abamectina + alquenol multimetílico, sendo o último um feromônio; E) dicofol; F). profenofós e G) abamectina (Quadro 1). Os tratamentos C e E foram feitos com soluções especiais para "Electrodyn". A análise dos resultados demonstrou que os tratamentos E e D foram os melhores. Palavras-chave: Polyphagotarsonemus latus, defensivos químicos, ácaro branco, algodoeiro. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polyphagotarsonemus latus; Tropical mite; Cotton; Chemical control. |
| Ano: 1987 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761987000200026 |
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| Lopes,Ueder Pedro; Zambolim,Laércio; Capobiango,Nayara Pereira; Gracia,Nicolas Arturo Osorio; Freitas-Lopes,Rejane Livramento. |
| ABSTRACT The aim of this study was to evaluate the resistance of Botrytis cinerea to the fungicides currently used for its control in Brazil. Isolates of the fungus were collected from different strawberry-producing fields in the states of Espírito Santo, Minas Gerais, and São Paulo, Brazil. First, a total of 183 isolates were identified at the species level using specific primers for the glyceraldehyde-3-phosphate dehydrogenase (G3PDH) gene. The isolates were grown on potato dextrose agar (PDA) containing the fungicides procymidone, iprodione, and thiophanate-methyl in different concentrations: 0.0 (control), 0.1; 1.0; 10.0; 100.0 and 1,000.0 μg∙mL−1. The percentage of mycelial growth inhibition was used to determine the effective concentration of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa; Chemical control; Dicarboxamides; Methyl benzimidazole carbamate. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000200266 |
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| Vásquez-Castro,Javier Alberto; Baptista,Gilberto Casadei de; Gadanha Junior,Casimiro Dias; Trevizan,Luiz Roberto Pimentel. |
| The goal of this work was to evaluate the effect of spray volume on the moisture of the stored grains of the corn and wheat. Two kg of each type of the grain were placed into the plastic bags and sprayed with the theoretical doses of 0, 1, 3, 5, 8, and 10 liters of water / ton of the grain. The grain moisture content was evaluated 24 h after the spray operation by the oven method. The increase in the grain moisture was quadratic and showed the same trend in both the corn and wheat. The grain moisture after spraying 10 L.t-1 showed little increase (0.8 %) as compared to the initial moisture content. Thus, the application of any spray volume as used in this study made no difference for a possible better uniformity in the distribution of insecticide... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stored products; Chemical control; Application technology; Desorption; Hygroscopic equilibrium. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300003 |
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| Rocha-Pereira,Maria R; Klar,Antônio E; Martins,Dagoberto; Ferreira de Souza,Guilherme S; Villalba,Juana. |
| This project aimed to measure the control efficiency of Acetil Coenzime A Carboxilase (ACCase)-inhibiting herbicides post-emergence applied to Urochloa decumbens (Stapf) R.D. Webster under different soil water contents. The experiment was conducted in a greenhouse at the Department of Plant Production, Faculty of Agronomic Sciences, UNESP, Botucatu, São Paulo. The experimental design was a completely randomized design with four replications, consisting of a 9 x 4 factorial, combined with three water management systems (-0.03, -0.07 and -1.5 MPa) and three herbicides (fluazifop-p-butyl, haloxyfop-methyl and sethoxydim + oil using four doses (100, 50, 25 and 0% of the recommended dose). Herbicide applications were conducted at two vegetative stages for all... |
| Tipo: Journal article |
Palavras-chave: Chemical control; Graminicide; Water restriction; Weed. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100018 |
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| 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 |
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| Bueno,Adeney de Freitas; Zechmann,Benjamin; Hoback,William Wyatt; Bueno,Regiane Cristina Oliveira de Freitas; Fernandes,Odair Aparecido. |
| Serpentine leafminers, Liriomyza spp. (Diptera: Agromyzidae), are polyphagous insects that feed on numerous crops worldwide including potato. Recently, leafminer larvae (Liriomyza trifolii) have become an economically important pest of potato. The larvae eat the mesophyll of leaflets leaving long winding tunnels inside the leaflets. The photosynthetic effects of larval tunneling on the remaining leaf tissue are unknown. In 2003, physiological responses of potato to leafminer, L. trifolii were evaluated in Kearney, Nebraska, USA. The leaflets were examined 7 and 14 days post infestation for leaf area injury, photosynthetic rates and fluorescence. Leafminers caused up to 13% leaf area loss due to leafminer injury with no effect on the photosynthetic rates of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant-insect interaction; Chemical control; Photosynthesis. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000600001 |
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| Bueno,Adeney de Freitas; Carvalho,Geraldo Andrade; Santos,Antônio Cesar dos; Sosa-Gómez,Daniel Ricardo; Silva,Débora Mello da. |
| ABSTRACT: Pesticides are considered the first line of defense for the control of pests and diseases. At least in the short and medium term, the use of pesticides will remain an important strategy for pest management, allowing growers to produce crops of sufficient quality at low costs. A broad approach known as Integrated Pest Management (IPM) combines several different pest-control strategies, among which the combination of chemical and biological control stands out. It requires pesticides that achieve optimal control of target pests with minimal impact on the activity of biological control agents. Because of the dynamics of pest infestations, IPM routines are continuously adjusted by growers, requiring comprehensive information about pesticide effects on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: IPM; Biological control; Chemical control. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600157 |
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| Marchioretto,Lucas De Ross; Dal Magro,Taísa. |
| ABSTRACT: There are few options of wide spectrum selective herbicides registered for post-emergence weed control in common beans crop. The experiment aimed to test crop selectivity and weed control of post-emergence herbicides on common beans. Weed control, injury and grain yield were evaluated. Treatments consisted on: cloransulam-methyl, imazethapyr, fomesafen, bentazon and diclosulam isolated and tank-mixed with clethodim; imazamox+bentazon, fomesafen+fluazifop, clethodim; cloransulam+bentazon and imazethapyr+bentazon. Treatments were tested on the cultivars 'ANfc 9', 'IPR Uirapuru' and 'BRS Estilo'. The high-yielding treatments to the cultivar 'ANfc 9' were fomesafen alone and tank-mixed with clethodim or fluazifop, cloransulam and diclosulam... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 'ANfc 9'; 'BRS Estilo'; Chemical control; 'IPR Uirapuru'; Phaseolus vulgaris. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000300407 |
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| Registros recuperados: 292 | |
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