Weeds hosting potyviruses associated with yam (Dioscorea spp.) cultivation
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Abstract
Context: Reducing the source of inoculum is a major challenge in the management of viral diseases in the field. In this regard, producing “healthy” planting material and eliminating possible alternative hosts in production areas are priorities for such programs. The presence of weeds associated with the main crop has been reported to have varying effects on agriculture, ranging from beneficial to harmful.
Objective: To detect weeds associated with yam (Dioscorea spp.) cultivation that serve as alternative hosts for potyviruses.
Methods: Weeds associated with yam cultivation were collected from three cooperatives and INIVIT production areas. The weeds were identified, and ELISA tests were performed to determine the presence of potyviruses.
Results: Twenty-six weed species were identified, ten of which were found to be hosts for potyviruses.
Conclusions: Eliminating weeds that are hosts for potyviruses in yam production areas is necessary for managing diseases associated with these viruses.
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