2008
DOI: 10.1590/s0100-54052008000200004
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Controle alternativo da mancha de Ramularia do algodoeiro

Abstract: Areolate mildew, caused by the fungus Ramularia gossypii (Speg.) Cif., is the most important foliar disease on cotton. There are a few products available to the growers to manage this disease among them the fungicides tryazol and strobilurine. This study aimed to evaluate the effect of foliar application of potassium silicate, 'calda Viçosa' e protector fungicides (Mancozeb and C l o r o t h a l o n y l ) t o c o n t r o l a r e o l a t e m i l d e w o n c o t t o n . T h e potassium silicate was not efficient… Show more

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Cited by 17 publications
(28 citation statements)
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“…These results denote the importance of the chemical control and the destructive potential of the R. areola fungus, when this disease is not monitored or efficient control measures are not taken. These results confirm those found by Aquino et al (2008b) and Ascari et al (2016), who assessed the effects of fungicide application to control the ramularia leaf spot and observed increases of 88 % and 24.64 % in the cotton seed yield, respectively.…”
Section: Cotton Cultivarsupporting
confidence: 91%
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“…These results denote the importance of the chemical control and the destructive potential of the R. areola fungus, when this disease is not monitored or efficient control measures are not taken. These results confirm those found by Aquino et al (2008b) and Ascari et al (2016), who assessed the effects of fungicide application to control the ramularia leaf spot and observed increases of 88 % and 24.64 % in the cotton seed yield, respectively.…”
Section: Cotton Cultivarsupporting
confidence: 91%
“…The effect of the disease was also observed in the thirds of the plant, with the lower third showing a higher area under the disease progress curve and lower yield. These results were due to the higher severity of the disease and better development of the fungus, favored by the microclimate in this third (Aquino et al 2008b, Pizzato et al 2013.…”
Section: Cotton Cultivarmentioning
confidence: 79%
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“…Conforme , o uso alternado de princípios ativos e o controle integrado de doenças contribui consideravelmente para evitar este problema, pois o cultivo de genótipos resistentes reduz o número de aplicações e, consequentemente, há menor pressão de seleção sobre o patógeno. AQUINO et al (2008a) indicaram o controle da mancha de ramulária por meio de aplicações de fungicidas protetores, porém, não são empregados no Centro-Oeste brasileiro pelo risco de se perder a ação dos princípios ativos pela ação de chuvas.…”
Section: Introductionunclassified