First Record of Cercospora Leaf Spot Disease on Okra Plants and its Control in Egypt

Farrag, Eman S.

doi:10.3923/ppj.2011.175.180

Cited by 17 publications

(13 citation statements)

References 3 publications

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“…On the basis of morphological and microscopic observation, the pathogen was identified as Cercospora spp. as described by Deighton [15], Farrag [17], Meghvansi, et al [22], Ellis and Everhart [28], Narayan, et al [29], Rahman, et al [33] and Park, et al [34]. Several tests were performed to measure the growth profile and characterize the isolated fungi.…”

Section: Discussionmentioning

confidence: 99%

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Identification and Characterization of Causal Agent of Cercospora Leaf Spot Disease of Okra

Hasan¹,

Hossain²,

Zaoti³

et al. 2018

BIOP

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Section: Discussionmentioning

confidence: 99%

“…In PDA media, it was white to brownish and white with light pink pigment on reverse side [18]. Microscopic observation showed that, the conidia was very long and multi-septate, conidia were pale olivaceous brown and septate [ Fig-1c-d] [14,15,17,[27][28][29]. …”

Section: Morphological and Microscopic Identificationmentioning

confidence: 99%

Identification and Characterization of Causal Agent of Cercospora Leaf Spot Disease of Okra

Hasan¹,

Hossain²,

Zaoti³

et al. 2018

BIOP

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“…Características micromorfológicas do agente etiológico O patógeno Cercospora hibiscina é pertencente ao Reino Fungi, Filo Ascomycota, Classe Dothideomycetes, Ordem Capnodiales, família Mycosphaerellaceae (MYCOBANK, 2015). De maneira geral, o fungo produz conidióforos curtos não ramificados, eretos, em tufos, de coloração marrom pálido, septados e surgem através da lesão da doença (FARRAG, 2011;BEGUM et al, 2012). Os conídios são bastante longos ou filiformes, multisseptados e hialinos, sendo produzidos na extremidade dos conidióforos, que se apresentam agrupados em feixes (BEGUM et al, 2012)…”

Section: Revisão Bibliográficaunclassified

“…Em Pseudocercospora abelmoschi, são verificados loci conidiogênicos inconspícuos (pouco visíveis) ou tropical e subtropical (FARRAG, 2011;JAIN et al, 2012) e, devido à rusticidade e à tolerância ao calor, não exige grande tecnologia para seu cultivo (OLIVEIRA et al, 2003).…”

Section: Revisão Bibliográficaunclassified

Aspectos relevantes sobre a cercosporiose do quiabeiro no Brasil: etiologia, sintomatologia, epidemiologia e controle

Galvão

Pereira

Rodrigues

et al. 2017

Pesquisa Agropecuária Pernambucana

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Objetivou-se com esta revisão realizar um levantamento sobre a cercosporiose do quiabeiro, enfocando os aspectos mais relevantes para a doença no Brasil: características micromorfológicas do patógeno, sintomatologia, epidemiologia e controle da doença. Resumidamente, P. abelmoschi e Cercospora (C. hibiscina e C. malayensis) podem ser diferenciados baseando-se nas características dos conidióforos, enquanto C. malayensis e C. hibiscina são diferenciados pelo comprimento dos conidióforos e conídios. No Brasil, a cercosporiose está frequentemente associada às espécies C. malayensis e C. hibiscina, em que C. malayensis é uma espécie menos agressiva, causando manchas foliares escuras e arredondadas e, por outro lado, C. hibiscina é mais agressiva, causando manchas foliares escuras, irregulares e maiores que a anterior. O controle da cercosporiose na cultura do quiabeiro é baseado em práticas culturais e controle químico, pois não existe o controle varietal.

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“…The present study is in accordance with Bisht et al (2013), they reported that maximum inhibition of fungal pathogen was in higher concentration of peppermint oil. According to the study of Farrag (2011), lemon grass oil was found at all concentrations had strong capacity to reduce the spread of CLS on Okra plant.…”

mentioning

confidence: 99%

Evaluation of Bioactive Plant Products for Ecofriendly and Effective Management of Cercospora Leaf Spot of Rauwolfia serpentina (L.) Benth Ex Kurz (Sarpagandha)

Rautela¹,

Vishwanath²,

Gupta³

2015

Plant Pathology J.

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A B S T R A C TRauwolfia serpentina (Indian snakeroot) is rich source of alkaloids, utilized for their medicinal properties. Diseases caused by foliar pathogens are major constraint in the economic production of the alkaloids from the dry roots of the plant. Among these diseases leaf spot caused by Cercospora rauwolfiae is of major importance, for its destructive nature resulting in huge economic losses. Management of the disease is achieved by use of chemical fungicides resulting in environment degradation and residual effect on the crop. Therefore in this study an attempt was made to evaluate the efficacy of commonly available essential oils and plant extracts for management of this destructive disease. Results of this study suggest that among the essential oils, mentha and peppermint oils at concentrations of 8 µL LG 1 result in complete (100%) growth inhibition of the C. rauwolfiae while palmarosa oil was least effective in inhibiting in vitro growth (41.17%) of the fungus. In case of plant extracts garlic bulb extract was found to be most effective resulting in complete (100%) growth inhibition of the pathogen followed by neem, eucalyptus and turmeric respectively while leaf extract of the Ocimum gave minimum (17.25%) growth inhibition of the test fungus. Results of this study indicate that ecofriendly and effective management of Cercospora leaf spot of Rauwolfia serpentina can be achieved by using the metabolites (crude extract and essential oil) of plant origin.

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First Record of Cercospora Leaf Spot Disease on Okra Plants and its Control in Egypt

Cited by 17 publications

References 3 publications

Identification and Characterization of Causal Agent of Cercospora Leaf Spot Disease of Okra

Identification and Characterization of Causal Agent of Cercospora Leaf Spot Disease of Okra

Aspectos relevantes sobre a cercosporiose do quiabeiro no Brasil: etiologia, sintomatologia, epidemiologia e controle

Evaluation of Bioactive Plant Products for Ecofriendly and Effective Management of Cercospora Leaf Spot of Rauwolfia serpentina (L.) Benth Ex Kurz (Sarpagandha)

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