Assessment of Potato Bacterial Wilt Disease Status in North Rift Valley of Kenya: A Survey

Kwambai, Thomas K.; Omunyin, M. E.; Okalebo, J. R.; Kinyua, Z. M.; Gildemacher, Peter

doi:10.1007/978-90-481-2543-2_46

Cited by 2 publications

(4 citation statements)

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“…However, their knowledge about PBW spread and management was scarce in all districts (Table S2). These findings are similar to results of a survey performed in Kenya by Kwambai et al (2011), where the farmers identified PBW by looking for wilting plants and rotting tubers but their knowledge on the causal organism, mode of spread and management of PBW was limited. Limited PBW knowledge by the farmers in Rwanda is probably due to the inaccessibility of accurate information since most of the farmers received their information about PBW mainly from their fellow farmers and relatives.…”

Section: Discussionsupporting

confidence: 84%

“…However, only about half of the farmers who uprooted infected plants removed the debris from their potato fields, while others left them in the field (Table S3). Kwambai et al (2011) reported that poor disposal of the uprooted material aggravated the spread and survival of the pathogen even in rotated crops. The recommended practice is to collect and bury potatoes and other crop residues (Priou et al 1999).…”

Section: Discussionmentioning

confidence: 99%

“…An integrated strategy for these methods is recommended for reducing the incidence of bacterial wilt (Champoiseau et al 2010;Martin and French 1985). Several studies have been conducted on the occurrence, spread and management of PBW in East Africa (Kurabachew and Ayana 2017;Kwambai et al 2011;Lemaga et al 2001;Lemaga et al 2005;Muthoni et al 2012;Muthoni et al 2013;Muthoni et al 2014a;2014). Within the region, a number of efforts to control PBW have been made, but the disease remains devastating due to lack of healthy (or certified) potato seed, infested soils and lack of knowledge about disease management among farmers (Gikunda 2015).…”

Section: Introductionmentioning

confidence: 99%

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Potato bacterial wilt in Rwanda: occurrence, risk factors, farmers’ knowledge and attitudes

et al. 2018

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Potato is an important food commodity and efforts to increase its productivity should focus on addressing production limiting factors. Potato bacterial wilt (PBW) caused by Ralstonia solanacearum is one of the major constraints to potato production in Rwanda and no single method effectively controls the disease. Development of a sustainable management approach requires understanding of PBW distribution, risk factors, farmers' knowledge and management attitudes. Therefore, we surveyed PBW disease and interviewed farmers in eight districts of Rwanda during March-April 2015. We detected PBW in all the surveyed districts and it was ranked as the major potato disease constraint. Among districts, disease incidence and severity varied from 5 to 24% and 3 to 13%, respectively, and was significantly higher in minor compared to major potato growing districts. Low PBW incidence and severity were associated with high altitude and low planting density, intercropping, crop rotation and avoidance of sharing farm tools. In all districts, farmers had little knowledge about PBW detection and spread, and the farmers' awareness of PBW management was often inconsistent with their practices. This incomplete knowledge about PBW was likely caused by inadequate extension services since most information about PBW was acquired from fellow farmers, parents or other relatives. Thus raising awareness of PBW and integrated disease management, including practices that are associated with low PBW, could limit the impact of this disease and help to secure food and income for potato growing farmers in Rwanda.

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Section: Discussionsupporting

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Potato bacterial wilt in Rwanda: occurrence, risk factors, farmers’ knowledge and attitudes

et al. 2018

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“…Given the difficulty in its management and ease of spread, bacterial wilt has been a quarantined potato disease with zero-tolerance for field inspection and laboratory testing for latent infection. Use of certified or clean seed has been advocated for managing the disease however, limited availability and access to such seed are major constraints for farmers (Kwambai et al, 2011, Muthoni et al, 2012. Moreover, the certification process is limited to officially released varieties, which can lead to spread of diseases through the movement of 'informal varieties' for instance, variety Shangi in Kenya (Kaguongo et al, 2014) where there was no flush through of clean seed and farmers were left to save and re-use seed.…”

Section: Ware and Seed Potato Value Chain Characteristicsmentioning

confidence: 99%

Exploring the regulatory space for improving availability, access and quality of vegetatively propagated crop seed: potato in Kenya

McEwan¹,

Spielman²,

Okello³

et al. 2020

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The CGIAR Research Program on Roots, Tubers and Bananas (RTB) is a partnership collaboration led by the International Potato Center implemented jointly with the Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT), the International Institute of Tropical Agriculture (IITA), and the Centre de Coopération Internationale en Recherche Agronomique pour le Développement (CIRAD), that includes a growing number of research and development partners. RTB brings together research on its mandate crops: bananas and plantains, cassava, potato, sweetpotato, yams, and minor roots and tubers, to improve nutrition and food security and foster greater gender equity especially among some of the world's poorest and most vulnerable populations.

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Assessment of Potato Bacterial Wilt Disease Status in North Rift Valley of Kenya: A Survey

Cited by 2 publications

References 2 publications

Potato bacterial wilt in Rwanda: occurrence, risk factors, farmers’ knowledge and attitudes

Potato bacterial wilt in Rwanda: occurrence, risk factors, farmers’ knowledge and attitudes

Exploring the regulatory space for improving availability, access and quality of vegetatively propagated crop seed: potato in Kenya

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