icipe Digital Repository: Recent submissions

Now showing items 801-820 of 1967

Population genetics of Anopheles funestus, the African malaria vector, Kenya

Edwin, O. Ogola; Joel, O. Odero; Joseph, M. Mwangangi; Daniel, K. Masiga; David, P. Tchouassi (BMC, 2019)

Background: Anopheles funestus is among the major malaria vectors in Kenya and sub-Saharan Africa and has been recently implicated in persistent malaria ransmission. However, its ecology and genetic diversity remain poorly ...
A previously unreported potential malaria vector in a dry ecology of Kenya

Edwin, O. Ogola; Edith, Chepkorir; Rosemary, Sang; David P, Tchouassi (BMC, 2019)

Background: In Kenya, malaria remains a major public health menace equally affecting the semi-arid to arid ecologies. However, entomologic knowledge of malaria vectors in such areas remains poor.Methods: Morphologically-identified ...
African citrus greening disease in East Africa: Incidence, severity, and distribution patterns.

Rasowo, B. A.; Khamis, S.A; Mohamed, S.A.; Ajene, I.J.; Aidoo, O. F.; Ombura, L.; Sétamou, M.; Ekesi, Sunday.; Borgemeister, C. (Oxford University Press, 2019)

African citrus greening disease (ACGD) is considered as one of the major diseases of citrus threatening citrus production in East Africa. Our study aimed for the first time to assess the incidence, severity, and distribution ...
Chemical additives enhance the activity of a Bt‐based biopesticide targeting the beet webworm larvae.

Opisa Miller, Selpha.; Akutse, K. S.; du Plessis, H.; Fiaboe, K.K.M.; Ekesi, Sunday. (Blackwell Verlag GmbH, 2019)

Spoladea recurvalis (Fbr.) (Lepidoptera: Crambidae) larvae can cause up to 100% foliage loss on amaranths during severe outbreaks. The Bacillus thuringiensis Subsp. kurstaki product Halt® is a biologically safe biopesticide ...
Seasonal abundance of Plutella xylostella (Lepidoptera: Plutellidae) and diversity of its parasitoids along altitudinal gradients of the eastern Afromontane.

Ngowi, B.V; Tonnang, H.EZ.; Khamis, F.; Mwangi, E. M.; Nyambo, B.; N. P. N.; Subramanian, S. (Springer, 2019)

Monthly field surveys of diamondback moth (DBM), Plutella xylostella (L.) and its parasitoids were conducted to assess seasonal abundance and diversity under changing altitude. Twenty-four crucifer farms spread across three ...
Efficacy of aqueous and oil formulations of a specific Metarhizium anisopliae isolate against Aphis craccivora Koch, 1854 (Hemiptera: Aphididae) under field conditions

Mweke, A.; Akutse, K. S; Ulrichs, C.; Fiaboe, K.K.M; Maniania, N. K.; Ekesi, Sunday. (Blackwell Verlag GmbH, 2019)

Cowpea (Vigna unguiculata) production is constrained by biotic and abiotic factors, among which Cowpea aphid (Aphis craccivora) is ranked a key insect pest that severely limits its potential for provision of food and ...
The role of Tetrastichus giffardianus Silvestri (Eulophidae: Hymenoptera) in natural control of Bactrocera zonata (Saunders) (Tephritidae: Diptera) and its temporal abundance in Sudan

Mahmoud, M. E. E.; Mohamed, S. A.; Khamis, F. M.; Basher, M. A.; Ekesi, Sunday. (OEPP/EPPO Bulletin, 2019)

Bactrocera zonata is an alien fruit fly which was introduced into Sudan in 2012 and spread throughout the country, severely hampering the production and export of fruit and vegetable crops. Cataloguing indigenous natural ...
Integrating temperature-dependent life table data into Insect Life Cycle Model for predicting the potential distribution of Scapsipedus icipe Hugel & Tanga

Magara, H. J. O.; Ayieko, M.A.; Niassy, S.; Salifu, D.; Azrag, A.G.A.; Khamis, F.M.; Subramanian, S.; Fiaboe, K.K.M.; Ekesi, Sunday.; Tanga, C.M. (PLOS ONE, 2019)

Scapsipedus icipe Hugel and Tanga (Orthoptera: Gryllidae) is a newly described edible cricket species. Although, there is substantial interest in mass production of S. icipe for human food and animal feed, no information ...
Use of integrated soil fertility management technologies in Malawi: Impact of dry spells exposure

Katengeza, S. P.; Holden, S. T.; Fisher, M. (Elsevier, 2019)

Integrated soil fertility management (ISFM) technologies hold potential to protect against climate risks, reduce nutrient depletion and enhance food security. In this paper, we study how exposure to dry spells influences ...
Effect of dietary replacement of fishmeal by insect meal on growth performance, blood profiles and economics of growing pigs in Kenya

Chia, S. Y.; Tanga, C. M.; Osuga, I. M.; Alaru, A. O.; Mwangi, D. M; Githinji, M.; Subramanian, S.; Fiaboe, K. K.M.; Ekesi, Sunday.; van Loon, J. J. A.; Dicke, M. (MDPI, 2019)

Pig production is one of the fastest growing livestock sectors. Development of this sector is hampered by rapidly increasing costs of fishmeal (FM), which is a common protein source in animal feeds. Here, we explored the ...
Temperaturedependent development and survival of immature stages of the coffee berry borer Hypothenemus hampei (Coleoptera: Curculionidae).

Azrag, A.G.A.,; Yusuf, A.; Pirk, C.W.W; Niassy, S.; Mbugua, K. K.; Babin, R. (Cambridge University Press, 2019)

Although the coffee berry borer, Hypothenemus hampei (Ferrari) (Coleoptera: Curculionidae: Scolytinae) is the most destructive insect pest of coffee worldwide, there is much to learn about its thermal biology. This study ...
Testing a co-formulation of CO2-releasing material with an entomopathogenic fungus for the management of subterranean termite pests

Ambele, F. C.; Bisseleua, F. D. B; Akutse, K. S.; Babalola, O. O.; Humbert, P.; Patel, A.; Vidal, S.; Djuideu, C. T. L.; Ekesi, Sunday. (Springer, 2019)

Termites cause significant damage to cocoa trees. Entomopathogenic fungi (EPFs) such as Metarhizium brunneum have been considered as a sustainable alternative to abusive use of insecticides against termites. However, potent ...
The South America tomato leafminer, Tuta absoluta (Lepidoptera: Gelechiidae), spreads is wings in eastern Africa

Aigbedion-Atalor, P. O.; Hill, M. P.; Zalucki, M. P.; Obala, F.; Idriss, G. E.; Midingoyi, S. K.; Chidege, M.; Ekesi, Sunday.; Mohamed, S. A. (Oxford Academic Press, 2019)

Following the arrival of Tuta absoluta Meyrick in the eastern African subregion in 2012, several studies have shown numerous ecological aspects of its invasion. We investigated the impact of T. absoluta on people’s livelihoods ...
Entomological assessment of dengue virus transmission risk in three urban areas of Kenya

Agha, S. B.; Tchouassi, D. P.; Turell, M. J.; Bastos, A. D. S.; Sang, R. (PLOS, 2019)

Urbanization is one of the major drivers of dengue epidemics globally. In Kenya, an intriguing pattern of urban dengue virus epidemics has been documented in which recurrent epidemics are reported from the coastal city of ...
Association of Phlebotomus guggisbergi with L. major and L. tropica in a complex transmission setting for cutaneous leishmaniasis in Gilgil, Nakuru county, Kenya

Owino, B. O.; Matoke-Muhia, D.; Alraey, Y.; Mwangi, J. M.; Ingonga, J. M.; Ngumbi, P. M.; Casas-Sanchez, A.; Acosta-Serrano, A.; Masiga, D. K. (PLOS, 2019)

Phlebotomus (Larroussius) guggisbergi is among the confirmed vectors for cutaneous leishmaniasis (CL) transmission in Kenya. This scarring and stigmatizing form of leishmaniasis accounts for over one million annual cases ...
Bioactive constituents, in vitro radical scavenging and antibacterial activities of selected Apis mellifera honey from Kenya.

Mokaya, H. O.; Bargul, J. L.; Irungu, J. W.; H. Michael, G. Lattorff (John Wiley & Sons Ltd, 2019)

here is limited information about the relative composition and health beneﬁts of various honey consumed across Africa. This study aimed at estimating the bioactive constituents, in vitro radical scavenging and antibacterial ...
Community based integrated vector management for malaria control: lessons from three years’ experience (2016–2018) in Botor-Tolay district, southwestern Ethiopia

Asale, A.; Kussa, D.; Girma, M.; Mbogo, C.; Clifford, M. M. (BMC, 2019)

Background: Integrated vector management (IVM) remains a key strategy in the fight against vector-borne diseases including malaria. However, impacts of the strategy should be regularly monitored based on feedback obtained ...
Soil chemical properties influence abundance of nematode trophic groups and Ralstonia solanacearum in high tunnel tomato production

Ngeno, D.C.; Murungi, L.K.; Fundi, D.I.; Wekesa, V.; Haukeland, S.; Mbaka, J. (AAS Open Research, 2019)

Background: Plant parasitic nematodes (PPNs) and bacterial wilt (Ralstonia solanacearum) are serious soil-borne pests in tomato (Solanum lycopersicon L) production in high tunnels. This study was undertaken to determine ...
Distribution and incidence of the oil palm weevil Rhynchophorus phoenicis (Fabricius, 1801) (Coleoptera: Curculionidae) in selected agroecological zones of Uganda

Baguma, J.; Otema, M.; Ddamulira, G.; Naluyimba, R.; Egonyu, J. P. (BioOne, 2019)

The genus Rhynchophorus (Herbst 1795) (Coleoptera: Curculionidae) is a key pest of palms worldwide, but information on Rhynchophorus spp. attacking the oil palm, Elaeis guineensis Jaquin in Uganda is outdated. This study ...
Evaluation of The Magnitude of Citus Yield Losses Due to African Citrus Triozid, False Codling Moth, the Greening Disease and Other Pests of Economic Importance in Kenya

Wangithi, Charity M. (IISTE, 2019)

Pests and diseases have continued to hamper productivity of the horticultural inductry round the globe. The Kenyan citrus industry is no exemption with a huge decline on its perfomance over the last decade. Although faced ...

Now showing items 801-820 of 1967

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