Tag Archives: Sweetpotato viruses

This report covers two projects, one on sweet potato viruses and one on cassava brown streak disease. They were linked through both being whitefly-transmitted viruses of root crops. The sweet potato virus disease (SPVD) project identified the whitefly-borne component of this disease in East Africa to be a serologically and …

This a progress report documenting the causes and control of virus diseases of sweetpotato in developing countries. Further, it reports on efforts sought to determine if sweetpotato virus disease is the main problem.

The study aimed to assess the recent magnitude of virus diseases attacking sweet potato in the main production areas of the country. Ninety seven sweet potato fields were visited in eastern and southern Ethiopia in 2009 and a total of 235 symptomatic and 735 asymptomatic vine cuttings were collected. The …

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 …

Sweetpotato (SP) (Ipomoea batatas (L) Lam) is a dicotyledonous perennial root tuber plant belonging to Convolvulaceae family. Ipomoea is one genus among 55 Convolvulaceae genera. Most of it’s 500 species are ploidy ranging 2x to 6x with SP possessing both 4x and 6x. SP has economic significance with global production …

Sweetpotatoes are vegetatively propagated from vines, root slips (sprouts) or tubers, and farmers often take vines for propagation from their own fields year after year. Thus, if virus diseases are present in the field they will inevitably be transmitted with the propagation material to the newly planted field, resulting in …

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 …

This presentation shows a pictorial illustration of the symptoms of virus infection manifested on sweetpotato.

This field guide presents information on common pests, diseases and nutritional disorders of sweetpotato. It is intended primarily as a tool for correct identification of these problems and ailments as an essential first step in their control. The principal entries in the guide are accompanied by photographs or illustrations, and …