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Tag Archives: Sweet potato virus disease

Poster: Can farmer multipliers meet QDS standards in the production of sweetpotato planting material?

Sweetpotato production in Tanzania is below the country’s potential due to limited availability of clean planting material during the planting season, usually at the onset of rains. Farmers mostly depend on materials conserved from the previous season whose quality is often unknown. This contributes to spread of Sweet potato virus …

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Poster: Sustainable uptake of insect proof net tunnels among farmer multipliers: What do we need to consider?

Sweetpotato production in Tanzania is hampered by high virus incidences. These viruses exercise synergistic interactions leading to up to 98% yield losses. Further, this makes their control difficult. It is therefore important to equip farmers with simple and affordable technologies which they can use to manage the spread of SPVD …

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Viruses and virus-like diseases affecting sweet potato subsistence farming in southern Tanzania

A survey for sweet potato viruses was conducted in 32 farmer’s fields in Mbinga and Songea  districts of the Ruvuma region in Southern Tanzania. Plants showing virus-like symptoms were observed in 25  out of 32 fields examined. Sweet potato virus disease (SPVD) incidence was low in Mbinga district (16.7%) on …

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Sweetpotato viruses: 15 years of progress on understanding and managing complex diseases

Sweetpotato (SP) (Ipomea Batatas (L) Lam) a member of Convolvulaceae family is important food security crop globally. The SP is indeterminant perennial and is grown as an annual crop in the tropic and subtropics. The most used propagation method is vegetative resulting in virus accumulation within planting stocks. This has …

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Control Strategies for Sweet Potato Virus Disease in Africa

Sweet potato virus disease (SPVD), caused by dual infection with the whitefly-borne Sweet potato chlorotic stunt virus (SPCSV) and the aphid-borne Sweet potato feathery mottle virus (SPFMV), is the most serious disease of sweet potato in Africa. SPVD has been known there since at least the 1940s, although it took …

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Working with farmers to control sweet potato virus disease in East Africa

This is a brief summary of the purpose of the ‘‘Working with farmers to control sweet potato virus disease in East Africa’’ project, research activities, outputs of the project, and the contribution of the project towards DFID’s development goals. This project used participatory varietal selection trials as a tool to …

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