8055_xml
20201121100000
assa
nadiag@assaf.org.za
assa
South African Journal of Science
S. Afr. J. Sci
1996-7489
11262020
116
11/12
Emerging potato pathogens affecting food security in southern Africa: Recent research
Jacquie E.
van der Waals
Department of Plant and Soil Sciences, University of Pretoria, Pretoria, South Africa
Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
Kerstin
Krüger
Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, Pretoria, South Africa
Department of Zoology and Entomology, University of Pretoria, Pretoria, South Africa
Potato is a staple crop that contributes to food security and poverty alleviation in developing nations. Despite this, yields in developing nations are often unsustainably low, due to various biotic and abiotic factors that negatively affect production. Some of the most important biotic constraints are pathogens, many of which are disseminated by seed tubers. The lack of functional or formal seed certification systems in many southern African countries results in a continual increase in pathogen pressure. Short rotation cycles, poor plant nutrition and inefficient control measures exacerbate the crop production challenges faced by resource poor growers. In this review, we discuss five of the most important diseases on potatoes in southern Africa, namely late blight, bacterial wilt, soft rot / blackleg, powdery scab and zebra chip. Management options for small-scale growers are provided.
11262020
1
10.17159/sajs.2016/crossmark
sajs.co.za
false
2020-03-13
2020-06-29
2020-11-26
https://creativecommons.org/licenses/by/4.0/
10.17159/sajs.2020/8055
20201121100000
https://www.sajs.co.za/article/view/8055
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https://www.sajs.co.za/article/view/8055/10636
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https://www.sajs.co.za/article/view/8055/10636
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https://www.sajs.co.za/article/view/8055/10636
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https://www.sajs.co.za/article/view/8055/10636
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https://www.sajs.co.za/article/view/8055/10636
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https://www.sajs.co.za/article/view/8055/10636
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https://www.sajs.co.za/article/view/8055/10636