Pests and diseases of African yam bean, Sphenostylis stenocarpa (Hoechst. Ex. A. Rich) harms
AbstractSeveral pests and diseases were identified on African yam bean, Sphenostylis stenocarpa. The pests attacked both the vegetative and reproductive stages of crops. The pests of the vegetative stage were identified as cutworms (Agrotis spp), aphids (aphis craccivora), grasshopper (Zonocerus variegates), Maruca testulalis, Cydia ptychora and leaf-rolling caterpillars (Sylepta derogate). Both the larvae and adults of these pests attacked the crops. Pests of the reproductive stage identified were: Cydia ptychora, Helithis armigera, Riptortus dentipes, Apion varium and Nezara viridula. The larvae and adults of these pests were also observed on the reproductive part. The disease identified on African yam beans included wilting, powdery mildew, root gall, rust and leaf mosaic. These diseases attacked the crop between seeding emergence and pod maturity.
Bio-Research Vol. 3(1) 2005: 14-20
Bio-Research journal is an open access journal, which means all its content is freely available without charge to the user or his/her institution.
You are free to share (that is, copy and redistribute the material in any medium or format) as long as you follow these licence terms:
You must give appropriate credit, provide a link to the license.
Non Commercial (nc)
You can copy, distribute, display, perform, and use this material for any purpose other than commercially (unless you get permission first). Non Commercial means not primarily intended for or directed towards commercial advantage or monetary compensation.
No Derivatives (nd)
If you remix, transform, or build upon the material, you may not distribute the modified material. But note that simply changing the format does not create a derivative.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the licence permits.
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.