Dépérissement des manguiers et citrus dans la région centrale du Togo et méthodes de lutte par des fongicides

Tedihou, Ekanao; Kpemoua, Kossi; Tounou, Agbéko Kodjo

doi:10.4314/jab.v119i1.1

Cited by 5 publications

(8 citation statements)

References 7 publications

(7 reference statements)

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“…Algunas de las nuevas especies que han sido identificadas están restringidas a un solo hospedante y son poco patogénicas, lo que sugiere que son de reciente introducción o que sólo están asociadas de manera endofítica (Pérez et al, 2010). Sin embargo, se han reportado casos de hospedantes infectados por solo una o por más de diez especies asociadas a síntomas en diferentes partes de la planta, indicando que pueden infectar indistintamente a más de un órgano (Delgado-Cerrone et al, 2016;Mayorquin et al, 2016;Tedihou et al, 2017).…”

Section: Rango De Hospedantesunclassified

Botryosphaeriaceae: una familia de hongos, compleja, diversa y cosmopolita

Flores¹,

Rodríguez-Alvarado

Gmez-Dorantes

et al. 2021

Remexca

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En la última década se ha incrementado el interés por estudiar los hongos de la familia Botryosphaeriaceae debido a las enfermedades que inducen en cultivos de importancia económica a su amplia distribución cosmopolita y a la asociación observada entre la patogénesis y el estrés del hospedante. Se han reportado más de diez especies asociadas a síntomas en diferentes partes de una misma planta, lo que indica que un número importante de especies de esta familia no presentan especificidad en rango de hospedantes. Además, diversos estudios han demostrado la capacidad de estos hongos para ‘brincar’ de sus hospedantes nativos originales a cultivos agrícolas que se establecen en áreas cercanas, pertenecientes a la misma familia botánica o a una familia diferente. El objetivo de este trabajo es revisar marcadores morfológicos y moleculares para la identificación taxonómica de especies de la familia Botryosphaeriace, su distribución geográfica, rango de hospedantes agrícola y aspectos de desarrollo para la enfermedad incluyendo modos de dispersión. La información presentada podrá ser de utilidad en la etiología, identificación y diagnóstico de especies de Botryosphaeriace así como el manejo de las enfermedades causadas que ellas inducen.

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Section: Rango De Hospedantesunclassified

Botryosphaeriaceae: una familia de hongos, compleja, diversa y cosmopolita

Flores¹,

Rodríguez-Alvarado

Gmez-Dorantes

et al. 2021

Remexca

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“…Mango is the leading fruit crop in the savannas of Cameroon (Adamawa, North and the Far The mango yield, in both countries, has decreased due to various biotic and abiotic factors. Mango dieback is the most recent rigorous threat to the Sudano-Sahelian zones 5,6 . Ceratocystis fimbriata Ellis & Halst, Lasiodiplodia theobromae (Pat.)…”

Section: Introductionmentioning

confidence: 99%

Dieback of Mango and Cutting Method Impact on the Regeneration of Tree in the Sudano-Sahelian Zone

Dooh¹,

Bertrand²,

Heu³

et al. 2023

Trends Agric. Sci

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Background and Objective:The dieback of mango (Mangifera indica) has become an increasing threat to mango production in Tchad and Cameroon. The present study was conducted to characterize and identify pathogens associated with the mango quick decline tree for the first time in both countries. Materials and Methods: Investigations were carried out through field observations of the symptoms. A simple block experimental design was adopted and the scale was used to assess the incidence, severity and prevalence at the two sites during the dry and rainy seasons. Pathogens associated were isolated using a Potato Dextrose Agar (PDA) medium. The control strategy was evaluated. Results: During the survey, symptoms of this disease were wilting of leaves and branches which gradually progress into dieback, gummosis, rotting of the stem and vascular discolouration. Six fungi, Lasiodiplodia theobromae, Colletotrichum sp., Aspergillus niger and Botrytis cinerea were present in the dry season and the two sites, Curvularia sp. and Schizosaccharomyces pombe occurring in the rainy season only in Cameroon were isolated. The highest incidence and severity rates were obtained during the rainy season, 43.94 and 14.03%, respectively. Kassai variety (25%) was the most susceptible to dieback. The percentage of tree regeneration from the cutting method depends on the attack percentage of the tree. Conclusion: This study suggested that several fungi are associated with this disease in Cameroon and Chad. Molecular analysis and pathogenicity are necessary to upset the control strategy (cutting method) which is efficient when the attack tree is under 50%.

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“…Among these diseases, dieback is a common one in cashew orchads. Dieback is a disease which attacked many plant species in many countries like cocoa trees in Cameroon (Mvondo et al, 2018;Mbenoun et al 2007), mango trees in Burkina Faso, Togo and Pakistan (Dianda et al2018;Tedihou et al, 2017;Kazmi et al, 2005), citrus (Tedihou et al, 2017), cashew in Brasil and Nigeria (Cardoso et al 2002;Hammed and Abedideji, 2008;Cipriano et al 2014), Fortunella margarita (Lour) and Aquilaria sinensis in Taiwan (Ko and Wang 2004;Fan et al, 2013), and Camelia oleifera in China ( Zhu et al, 2014). Lasiodiplodia theobrome is the largest causal agent of this disease.…”

Section: Introductionmentioning

confidence: 99%