Working Document Series Open Access Participatory development, testing and validation of concepts and technologies for site-specific detection and control of plant parasitic nematodes infecting tomatoes in Mwea, Kenya J.K. Birgen · V. Gathaara · F.W. Kariuki · G.M. Kariuki Tomato production in Kenya has been a lucrative business for smallholder farmers who cannot afford huge capital to invest in other cash crops. It is a major source of household incomes and has created employment that has resulted in improv… RUF-34557 2010 CC BY 4.0 4 Sep 2015
Working Document Series Open Access Developing a broad soybean germplasm base and durable resistance to soybean rust disease in Uganda R. Kawuki · P. Tukamuhabwa · G. Tusiime Soybean rust, Phakopsora pachyrhizi is a major threat to soybean production world-wide. In Uganda breeding for soybean rust resistance has taken priority over other objectives since the first disease rust outbreak in 1996. Three resistant … RUF-34535 2010 CC BY 4.0 25 Aug 2015
Working Document Series Open Access Inheritance of resistance to rice yellow mottle virus disease in selected rice cultivars in Uganda G. Asea · R. Edema · J. Lamo · M.L. Mogga Rice yellow mottle sobemovirus (RYMV) has been identified as the most destructive viral disease in lowland and upland rice. In this study, the mode of inheritance of resistance to a prevalent RYMV strain in Uganda was determined for five r… RUF-34477 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Introgressing resistance to Turcicum leaf blight and mapping of associated quantitative trait loci in sorghum M. Abdelbagi Ali · Mayada Mamoun Beshir · P. Gibson · P. Okori Screening for Turcicum leaf blight was carried out in F2 and F2:3 segregating sorghum populations under field and controlled conditions. Disease severity as a percentage of leaf area covered by lesions was computed and the lesion type was … RUF-34473 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Enhancing genetic resistance to soybean rust disease R. Bandyopadhyay · M. Maphosa · C. Mukankusi · H. Talwana Soybean is an important crop worldwide with unrivalled protein quality and content. Sustenance of soybean productivity is, however, compromised by the devastating soybean rust disease caused by the fungus Phakopsora pachyrhizi. Some resist… RUF-34472 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Assessing the efficacy of pyramided genes in conferring dual and durable resistance to bean anthracnose and root rot M. Kiryowa · C. Mukankusi · S. Nkalubo · H. Talwana +1 more Bean anthracnose (Colletotricum lindemuthianum) and root rots are important diseases of beans in Uganda. The coexistence of both diseases on the crop in farmers’ fields and the ability of these pathogens to overcome incorporated resistance… RUF-34465 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Biotic constraints to passion fruit production in central and eastern provinces of Kenya R. Gathu · N. Kori · J. Mbaka · Maina Mwangi +1 more Passion fruit is an important crop in Kenya for income generation. However, passion fruit production faces major challenges due to pests and diseases that have led to yield losses of 50-100%. To support development of effective integrated … RUF-34463 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Introgressing resistance to Fusarium root rot in selected farmer preferred Andean bean genotypes from Meso-American line and mapping of associated resistance quantitative trait loci K. Kamfwa · C. Mukankusi · M. Mwala · P. Okori Two populations of beans (Phaseolus vulgaris) from K20 x MLB-49-89A and K132 x MLB-49-89A were assessed for resistance to Fusarium solani f.sp. phaseoli. Additionally, 35 SSR markers were screened for polymorphisism in the parents. The res… RUF-34455 2010 CC BY 4.0 21 Aug 2015
Working Document Series Open Access Factors influencing pesticide use among cocoa farmers in Ondo State, Nigeria Akeem Abiade. Tijani Cocoa production in Nigeria is constrained by insect pests and diseases. The brown cocoa mirid (Sahlbergella singularis), the swollen shoot virus transmitted by mealy bugs and the black pod disease (Phytophthora palmivora and P. megakarya)… RUF-34393 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Fumigant toxicity of five essential oil constituents against major stored-product insect pests of food grains P.K Bett · A.L. Deng · E. A.W. Kamau · S.T Kariuki +5 more Insect pests attacking stored food grains cause substantial losses that undermine food security in sub-Sahara Africa. Subsistence farmers predominantly use traditional plant-based products to protect their grains in storage. In an attempt … RUF-34387 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Evaluation of Metarhizium anisopliae for integrated management of termites on maize and Grevillea robusta in Uganda and Kenya H. Agaba · L. Gohole · N.K. Maniania · P. Nyeko +1 more Termites are a major constraint to subsistence agriculture, causing yield losses up to 100%. Recent studies have demonstrated the efficacy of the fungus, Metarhizium anisopliae for controlling termites, but little is yet known about sustai… RUF-34376 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Response of sorghum genotypes to indigenous and exotic stem borers in Kenya P. Gibson · S. Kyamanywa · M. Mgonja · P.W. Muturi +1 more Field trials are being conduced in Kenya to identify sources of resistance, especially multiple resistance to Buseola fusca and Chilo partellus, two devastating pests of maize in sub-Saharan Africa. Genotypes ICSB 464, ICSB 467, Macia, IES… RUF-34367 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Assessment of groundnut yield loss due to the groundnut leaf miner, Aproaerema modicella infestation in Mozambique M. Botao · D. Cugala · L. Santos · A. Sidumo +1 more The groundnut leaf miner, Aproaerema modicella Deventer (Lepidoptera: Gelechiidae), is an invasive alien Asian species in Mozambique. A. modicella was reported for the first time in 1998 in Uganda. In Mozambique, Groundnut leaf miner was f… RUF-34364 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Assessment of the fruit fly, Batrocera invadens, pest status and the establishment of the parasitoid, Fopius arisanus in Mozambique G. Albano · D. Cugala · L. Santos Asian fruit flies in the genus Bactrocera (Diptera: Tephritidae) are regarded as some of the most destructive pests of fruits and vegetables worldwide and rank high on quarantine lists worldwide. Losses result from direct feeding damage, d… RUF-34342 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Diversity and colonization of permanent and semi-permanent breeding habitats by Anopheles mosquitoes in a semi-arid ecosystem of Baringo district in Kenya S.O. Arum · E.D. Kokwaro · F. Mulwa Diversity, occurrence and utilization of mosquito breeding habitats is an essential component of vector ecology and important in designing and implementation of vector management programs. A one year larval survey was conducted to determin… RUF-34341 2010 CC BY 4.0 20 Aug 2015
Working Document Series Open Access Biosecurity preparedness is integral to sustainable food security in Africa S. Sharma Growth in international trade, tourism and increasing international movements of people will increasingly expose countries in Africa to biosecurity threats, which will significantly impact on economies, community health and native biodiver… RUF-34278 2014 CC BY 4.0 17 Aug 2015
Working Document Series Open Access Predicting potential distribution of the coconut whitefly in Mozambique based on ecological niche modeling tool T. Checo · D. Cugala · L. Jose The coconut (Cocos nucifera) whiteûy (Aleurotrachelus atratus), native to Central America has been recorded in various countries in Africa. In Mozambique, the coconut whitefly was reported for the first time in Maputo in 2010. However, the… RUF-34232 2014 CC BY 4.0 17 Aug 2015
Working Document Series Open Access Indigenous knowledge practices for production and management of spider mites and anthracnose in smallholder French bean farmers in Nakuru County, Kenya J. G. Nyaanga · S. O. Ochola · K. O. Ogayo · J. O. Ogendo +2 more A field survey was conducted to inventory the major crops grown, French bean production constraints, pests and diseases and indigenous control strategies. A total of 56 smallholder French bean farmers were interviewed using structured ques… RUF-34196 2014 CC BY 4.0 14 Aug 2015
Working Document Series Open Access Plantwise knowledge bank: Expanding local and global resource pathways for plant health education and research in Africa J. Dennis · S. Hobbs · J. Mulema · W. Ochilo Plant health stakeholders in Africa face many challenges to manage crop pests. Apart from lack of access to vital knowledge and resources, new threats from globalization, climate change and population growth have led to a rapid pace of cha… RUF-34179 2014 CC BY 4.0 14 Aug 2015
Working Document Series Open Access Epidemiology of Tomato Curly Stunt Virus in Mozambique C. Ecole · B. F. Francisco · A. M. Mondjana · B. A. Nhaulaho +2 more Tomato (Lycopersicon esculentum) has a great socio-economic importance in Mozambique, since it is one of the sources of income for many families. However, its continuous production throughout the year provides conditions for the overwinter… RUF-34036 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Evaluation of the repellent effects of four chemicals in the control of red-billed in rice in chókwè irrigation scheme T. F. Chiconela · A. K. Ngazero Red-billed (Quelea quelea) is one of the most damaging pests of rice in Mozambique. For its control, smallholder farmers rely on different frightening techniques to scare birds from their crops. Apart from providing a temporary relief, thi… RUF-34026 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Assessment of pests incidence and their impact on yield of sweetpotato in Mozambique D. Cugala · I. Mugovo · L. Santos The sweetpotato (Ipomoea batatas L.) is important food and cash crop and is considered as one of the most important crop for food security in Mozambique. Sweetpotato is grown extensively by small scale households and mostly managed by wome… RUF-34001 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Assessment of the occurrence of natural enemies associated with invasive coconut whitefly in Inhambane province, Mozambique D. Cugala · L. Jose · O. Miguel The whitefly (Aleurotrachelus atratus Hempel) is a Neotropical whitefly, originally described from coconut (Cocos nucifera) in Brazil. In the Comoro Islands, A. atratus was responsible for an economic loss of 55% to local coconut producers… RUF-33976 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Assessing the efficacy of integrated pest management strategies for suppressing Bactrocera invadens in selected orchards in Manica Province, Mozambique D. Cugala · S. Ekesi · A. Majacunene The invasive fruit fly, Bactrocera invadens, was first detected in Mozambique in 2007 (Cuamba District, Niassa Province) and is now well established and widespread in the North and central regions. Direct damage to mango and guava due to B… RUF-33960 2014 CC BY 4.0 12 Aug 2015
Working Document Series Open Access Assessment of the socio-economic impact of the invasive fruit fly Bactrocera invadens (Diptera:Tephritidae) in Mozambique D. Cugala · M. De Meyer · L. Jose · L. Santos Fruit flies are among the most important pests of fruits and vegetables in the world. The invasive fruit fly Bactrocera invadens (Diptera:Tephritidae) was first detected in Africa in 2003 in Kenya, has spread to at least 27 countries attac… RUF-33931 2014 CC BY 4.0 11 Aug 2015
