Biocultural drivers responsible for the occurrence of a Cassava bacterial pathogen in small-scale farms of Colombian Caribbean

Perez, D.; Duputie, A.; Vernière, C.; /Szurek, Boris; Caillon, S.

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dc.creator	Perez, D.
dc.creator	Duputie, A.
dc.creator	Vernière, C.
dc.creator	/Szurek, Boris
dc.creator	Caillon, S.
dc.date	2022
dc.date.accessioned	2022-10-14T18:38:30Z
dc.date.available	2022-10-14T18:38:30Z
dc.identifier	https://www.documentation.ird.fr/hor/fdi:010085119
dc.identifier	oai:ird.fr:fdi:010085119
dc.identifier	Perez D., Duputie A., Vernière C., Szurek Boris, Caillon S.. Biocultural drivers responsible for the occurrence of a Cassava bacterial pathogen in small-scale farms of Colombian Caribbean. 2022, 10, p. 841915 [ p.]
dc.identifier.uri	https://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/169926
dc.description	Cassava (Manihot esculenta Crantz) is a primary crop for food security of millions of people worldwide. In Colombia, the Caribbean region contributes about half of the national cassava production, despite major socioeconomic constraints such as unequal land property, omnipresence of middlemen, low and unstable prices, armed conflict, climate change and phytosanitary issues. Among the latter is Cassava Bacterial Blight (CBB), a disease caused by the bacterial pathogen Xanthomonas phaseoli pv. manihotis (Xpm) that leads to irreversible damage to plants, impeding growth and productivity. In 2016, we analyzed the role of sociocultural and agricultural practices on CBB prevalence in small-scale fields of a village of the Colombian Caribbean region, where farmers live almost exclusively from the sale of their cassava production. Semi-structured interviews (48) were conducted with all farmers who cultivated cassava to document individual sociodemographic characteristics, cassava farming practices, and perceptions about CBB occurrence. Cassava Bacterial Blight was diagnosed in the field and the presence of Xpm was further confirmed upon laboratory analysis of collected diseased leaf samples. Our data show that (i) according to the risks perceived by farmers, CBB is the main disease affecting cassava crops in the village and it could indeed be detected in about half of the fields visited; (ii) CBB occurrence depends strongly on land property issues, likely because of an inadequate phytosanitary control during acquisition of cuttings when farmers are forced to rent the land; and (iii) there is a strong positive correlation between the use of commercial fertilizers and the occurrence of CBB in the village of Villa Lopez.
dc.language	EN
dc.subject	agricultural practices
dc.subject	cassava bacterial blight (CBB)
dc.subject	fertilizer use
dc.subject	land property
dc.subject	Xanthomonas phaseoli pv manihotis
dc.subject	circulation of propagative propagules
dc.subject	seed system
dc.title	Biocultural drivers responsible for the occurrence of a Cassava bacterial pathogen in small-scale farms of Colombian Caribbean
dc.type	text
dc.coverage	COLOMBIE