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Articles 121 - 150 of 1443
Full-Text Articles in Life Sciences
4-Ethylacetophenone From Potato Plants Repels Phthorimaea Operculella And Inhibits Oviposition: A Sustainable Management Strategy, Xinyu Ma, Junjie Yan, Guangyuan Su, Fathiya M. Khamis, Athanase Hategekiman, Yulin Gao
4-Ethylacetophenone From Potato Plants Repels Phthorimaea Operculella And Inhibits Oviposition: A Sustainable Management Strategy, Xinyu Ma, Junjie Yan, Guangyuan Su, Fathiya M. Khamis, Athanase Hategekiman, Yulin Gao
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The potato tuber moth, Phthorimaea operculella (Zeller), is an important pest of potato crops capable of boring into and consuming the potato tubers. Although chemical insecticides are employed to control P. operculella populations, their efficacy is frequently limited, raising environmental concerns. Host plant volatiles are important allelochemicals that can be exploited for the management of pests. In our previous studies, we identified five volatile organic compounds (3-ethylacetophenone, 4-ethylacetophenone, geranylacetone, ethylbenzene, and 4-hydroxy-4-methyl-2-pentanone) as allelochemicals potentially influencing the oviposition behavior of P. operculella. Using electroantennography (EAG) and behavioral assays, we found that 4-ethylacetophenone significantly repelled P. operculella at all tested concentrations …
Anthropogenic Influences On Parasitoid Wasps’ Biocontrol Of Invasive Insect Pest Species In Africa, Fathiya M. Khamis, Inusa J. Ajene
Anthropogenic Influences On Parasitoid Wasps’ Biocontrol Of Invasive Insect Pest Species In Africa, Fathiya M. Khamis, Inusa J. Ajene
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Sustainable agriculture is crucial to ensuring food and nutritional security and improving livelihoods of millions across Africa. However, agricultural production is constrained by native and invasive pests. Indiscriminate insecticide use is often the first line of action to manage these pests, harming human and animal health, and impacting biodiversity. Thus, shifting to more ecologically sustainable alternatives is key to biodiversity conservation and sustainable agriculture. Biological control is a core component of integrated pest management strategies, and natural enemies, like parasitoid wasps, are considered one of the most environmentally sustainable means of managing pests. However, the Anthropocene plays a significant role …
Differential Responses Of The Egg-Larval Parasitoid Chelonus Bifoveolatus To Fall Armyworm-Induced And Constitutive Volatiles Of Diverse Maize Genotypes, Collins O. Onjura, Emmanuel Peter, George O. Asudi, Michael M. Gicheru, Samira A. Mohamed, Toby J.A. Bruce, Amanuel Tamiru
Differential Responses Of The Egg-Larval Parasitoid Chelonus Bifoveolatus To Fall Armyworm-Induced And Constitutive Volatiles Of Diverse Maize Genotypes, Collins O. Onjura, Emmanuel Peter, George O. Asudi, Michael M. Gicheru, Samira A. Mohamed, Toby J.A. Bruce, Amanuel Tamiru
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The fall armyworm (FAW), Spodoptera frugiperda, is a serious invasive crop pest and threat to food security. Conventional pest control approaches using chemical pesticides can lead to adverse environmental and human health problems calling for safer alternative pest management options. Volatile organic compounds (VOCs) released by plants constitutively and in response to herbivory have been shown to enhance ecologically benign biocontrol alternatives to chemical insecticides for pest management. However, genotypic variations in VOC emissions have also been reported for plant species including maize (Zea mays). Hence, a better insight into the variations in odor profiles of different maize varieties and …
A System Dynamics Model For Predicting African Armyworm Occurrence And Population Dynamics, Bonoukpoè Mawuko Sokame, Brian Kipkorir, Komi Mensah Agboka, Saliou Niassy, Yeneneh Belayneh, Maged Elkahky, Henri E.Z. Tonnang
A System Dynamics Model For Predicting African Armyworm Occurrence And Population Dynamics, Bonoukpoè Mawuko Sokame, Brian Kipkorir, Komi Mensah Agboka, Saliou Niassy, Yeneneh Belayneh, Maged Elkahky, Henri E.Z. Tonnang
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This study develops a comprehensive system dynamics model to predict and manage African armyworm (Spodoptera exempta) outbreaks, a major threat to cereal crops across Africa. We applied system dynamics approache with its archetypes (causal loop diagram (CLD), reinforcing (R) and balancing (B)) to analyse the population dynamics of the pest. The VENSIM modelling platform (Ventana Systems Inc., DSS 8.2) was used to implement the models and carry out the simulations. The research integrates extensive data from 1980 to 2023, encompassing the African armyworm's life cycle stages, climatic variables, and intervention strategies, to simulate potential outbreak scenarios and evaluate the impacts …
Global Review Of Consumer Preferences And Willingness To Pay For Edible Insects And Derived Products, Zewdu Abro, Kibrom T. Sibhatu, Gebeyehu Manie Fetene, Mohammed Hussen Alemu, Chrysantus M. Tanga, Subramanian Sevga, Menale Kassie
Global Review Of Consumer Preferences And Willingness To Pay For Edible Insects And Derived Products, Zewdu Abro, Kibrom T. Sibhatu, Gebeyehu Manie Fetene, Mohammed Hussen Alemu, Chrysantus M. Tanga, Subramanian Sevga, Menale Kassie
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The rising global demand for protein, driven by population growth, urbanization, economic development, and climate change, underscores the need for sustainable alternative protein sources. Edible insects have emerged as a viable solution to enhance foodfeed and nutritional security while contributing to waste management. This study reviews 128 peer-reviewed publications to assess consumer preferences and willingness to pay (WTP) for edible insects and their derivatives. Findings reveal that studies predominantly focus on Europe and insect-based foods, with limited research on insect-based feeds and derived products. Consumers in Africa, Asia, and Latin America show higher acceptance of insect-based food compared to those …
Genetic Diversity Of Aedes Aegypti Populations From Kisumu And Busia Counties, Western Kenya, And Their Vector Competence For Chikungunya Virus, Victor O. Anyango, Solomon Langat, Francis Mulwa, James Mutisya, Hellen Koka, Collins Okoyo, Edith Chepkorir, Samson Konongoi, Anncarol Karanja, Glennah Kerubo, Rosemary Sang, Joel Lutomiah
Genetic Diversity Of Aedes Aegypti Populations From Kisumu And Busia Counties, Western Kenya, And Their Vector Competence For Chikungunya Virus, Victor O. Anyango, Solomon Langat, Francis Mulwa, James Mutisya, Hellen Koka, Collins Okoyo, Edith Chepkorir, Samson Konongoi, Anncarol Karanja, Glennah Kerubo, Rosemary Sang, Joel Lutomiah
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Aedes aegypti (Ae. aegypti) is the primary vector of several arboviruses, including dengue virus (DENV), chikungunya virus (CHIKV), yellow fever virus (YFV), and Zika virus (ZIKV). This vector is widespread globally in tropical and subtropical areas but also found in temperate areas. Kenya experienced its first chikungunya outbreak in Lamu County in 2004, followed by subsequent outbreaks in Mandera in 2016 and Mombasa in 2017. Despite the presence of Ae. aegypti in Kisumu and Busia counties, no outbreaks of chikungunya fever have been reported in these two western Kenya counties. To investigate this phenomenon, we collected Ae. aegypti mosquitoes from …
Steering Conservation Biocontrol At The Frontlines: A Fuzzy Logic Approach Unleashing Potentials Of Climate-Smart Intercropping As A Component Within The Integrated Management Of Fall Armyworm In Africa, Komi Mensah Agboka, Henri E.Z. Tonnang, Emily Kimathi, Elfatih M. Abdel-Rahman, John Odindi, Onisimo Mutanga, Saliou Niassy
Steering Conservation Biocontrol At The Frontlines: A Fuzzy Logic Approach Unleashing Potentials Of Climate-Smart Intercropping As A Component Within The Integrated Management Of Fall Armyworm In Africa, Komi Mensah Agboka, Henri E.Z. Tonnang, Emily Kimathi, Elfatih M. Abdel-Rahman, John Odindi, Onisimo Mutanga, Saliou Niassy
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This study introduces a computational index that employs fuzzy sets theory to identify potential deployment sites for push-pull as a component in the integrated management of Fall Armyworm (FAW) in Africa. The index, validated through known push-pull testing sites and informed by insights from field data and practical observations, is primarily based on companion plants (Desmodium intortum and Brachiaria brizantha), livestock, and maize as covariates. The study developed a set of rules linking each selected covariate to the output as membership functions, which are later combined using an algebraic operator. It identifies extensive maize farms across Africa potentially suitable for …
Data Augmentation And Machine Learning Algorithms For Multi-Class Imbalanced Morphometrics Data Of Stingless Bees, Daisy Salifu, Lorna Chepkemoi, Eric Ali Ibrahim, Kiatoko Nkoba, Henri E.Z. Tonnang
Data Augmentation And Machine Learning Algorithms For Multi-Class Imbalanced Morphometrics Data Of Stingless Bees, Daisy Salifu, Lorna Chepkemoi, Eric Ali Ibrahim, Kiatoko Nkoba, Henri E.Z. Tonnang
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The study focusses on handling of multiclass imbalanced data on classification of stingless bee samples by employing data balancing techniques, namely Synthetic Minority Oversampling Technique (SMOTE) and Adaptive Synthetic (ADASYN) approach. These techniques are applied in combination with machine learning (ML) algorithms; specifically Random Forest (RF), and Support Vector Machine (SVM), to assess the models’ predictive performance to infer stingless bee samples identities. We studied ML classifier models: RF, RF + SMOTE, RF + ADASYN, SVM, SVM + SMOTE and SVM + ADASYN on the six-class imbalanced dataset of stingless bees morphometrics. Multi-class area under curve (AUC), F1-score, G-mean, balanced …
An Intensified Cereal Push-Pull System Reduces Pest Infestation And Confers Yield Advantages In High-Value Vegetables, Frank Chidawanyika, Evanson R. Omuse, Lavender O. Agutu, Jimmy O. Pittchar, Dickens Nyagol, Zeyaur R. Khan
An Intensified Cereal Push-Pull System Reduces Pest Infestation And Confers Yield Advantages In High-Value Vegetables, Frank Chidawanyika, Evanson R. Omuse, Lavender O. Agutu, Jimmy O. Pittchar, Dickens Nyagol, Zeyaur R. Khan
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Crop diversification is associated with ecosystem services that can improve yield. We integrated tomatoes and kales within the cereal push-pull technology (PPT), to form the vegetable integrated push-pull (VIPP), and explored the influence of these cropping systems on pest and disease management, and subsequent yield of the vegetables. Aphids and diamondback moths (DBM), the major pests in kale production, together with grasshoppers were consistently lower in the VIPP plots. Low incidences and damage by leafminers, whiteflies and fruitflies on tomatoes were observed in VIPP plots compared to plots of tomato intercropped with maize (control). The severity of black rot and …
Factors Influencing The Adoption Of Agroecological Vegetable Cropping Systems By Smallholder Farmers In Tanzania, Essy C. Kirui, Michael M. Kidoido, Komivi S. Akutse, Rosina Wanyama, Simon B. Boni, Thomas Dubois, Fekadu F. Dinssa, Daniel M. Mutyambai
Factors Influencing The Adoption Of Agroecological Vegetable Cropping Systems By Smallholder Farmers In Tanzania, Essy C. Kirui, Michael M. Kidoido, Komivi S. Akutse, Rosina Wanyama, Simon B. Boni, Thomas Dubois, Fekadu F. Dinssa, Daniel M. Mutyambai
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Vegetable production is vital to smallholder farmers, who often struggle to overcome pests, diseases, and extreme weather. Agroecological cropping systems offer sustainable solutions to these issues but their adoption rates in Tanzania remain low. This study examines the factors influencing smallholder farmers’ adoption of selected agroecological cropping systems for vegetable production in Tanzania, which remains underexplored. Using a multistage sampling technique, cross-sectional data were gathered from 525 crucifer and traditional African vegetable farming households within the Arusha and Kilimanjaro regions. Multivariate probit regression analysis, which accounts for the simultaneous adoption of multiple systems, revealed several significant variables influencing adoption. The …
Climate Effects On Honey Bees Can Be Mitigated By Beekeeping Management In Kenya, Malena Sibaja Leyton, H. Michael G. Lattorff, Nkoba Kiatoko, Fabrice Requier
Climate Effects On Honey Bees Can Be Mitigated By Beekeeping Management In Kenya, Malena Sibaja Leyton, H. Michael G. Lattorff, Nkoba Kiatoko, Fabrice Requier
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In recent decades, worldwide concerns about the health of honey bees motivated the development of surveys to monitor the colony losses, of which Sub-Saharan Africa has had limited representation. In the context of climate change, understanding how climate affects colony losses has become fundamental, yet literature on this subject is scarce. For the first time, we conducted a survey to estimate the livestock decrease of honey bee colonies in Kenya for the year 2021–2022 to explore the effects of environmental conditions, such as temperature and precipitation, on livestock decrease. We define “livestock decrease” from the beekeeper's perspective, including dead colonies …
Automatic Synthesis Of Insects Bioacoustics Using Machine Learning: A Systematic Review, Henry Kyalo, Henri Tonnang, James Egonyu, John Olukuru, Chrysantus Tanga, Kennedy Senagi
Automatic Synthesis Of Insects Bioacoustics Using Machine Learning: A Systematic Review, Henry Kyalo, Henri Tonnang, James Egonyu, John Olukuru, Chrysantus Tanga, Kennedy Senagi
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The application of machine learning has received increasing attention in the synthesis of insect sounds to preserve biodiversity. This study reviewed current literature on the application of these techniques in the automatic synthesis of insect bioacoustic and their applications in insects as food and feed, improving pest management, and as well as managing pollinators. To achieve this, the study used Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology to identify, screen, and include the final articles used in this review, based on criteria such as papers addressing machine learning in insect acoustics, biodiversity, ecology conservation, etc. This study …
Spatiotemporal Trends In Anopheles Funestus Breeding Habitats, Grace R. Aduvukha, Elfatih M. Abdel-Rahman, Bester Tawona Mudereri, Onisimo Mutanga, John Odindi, Henri E.Z. Tonnang
Spatiotemporal Trends In Anopheles Funestus Breeding Habitats, Grace R. Aduvukha, Elfatih M. Abdel-Rahman, Bester Tawona Mudereri, Onisimo Mutanga, John Odindi, Henri E.Z. Tonnang
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Effective identification and control of malaria vector larval breeding habitats are crucial for the management and eradication of malaria. Despite its importance, the last decade has seen a decline in data availability and intervention efforts due to reduced attention and prioritization. This study addresses the geographic data scarcity concerning Anopheles funestus larval breeding habitats in a malaria-prone region of western Kenya. Employing a two-step methodological approach, we integrated multi-criteria decision analysis (MCDA) and rule-based fuzzy logic analysis to evaluate the spatiotemporal similarity or divergence of these habitats. The analysis spanned a five-year interval, 2008, 2013, and 2018 with 2013 serving …
The Role Of Social-Psychological Factors In The Adoption Of Push-Pull Technology By Small-Scale Farmers In East Africa: Application Of The Theory Of Planned Behavior, Denis Waiswa, Beatrice Wambui Muriithi, Alice W. Murage, Dave Mwangi Ireri, Fredah Maina, Frank Chidawanyika, Fahri Yavuz
The Role Of Social-Psychological Factors In The Adoption Of Push-Pull Technology By Small-Scale Farmers In East Africa: Application Of The Theory Of Planned Behavior, Denis Waiswa, Beatrice Wambui Muriithi, Alice W. Murage, Dave Mwangi Ireri, Fredah Maina, Frank Chidawanyika, Fahri Yavuz
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Push-pull technology (PPT) continues to gain relevance among smallholder farmers across the East African region in managing the constraints affecting cereal crop yields including stemborers, fall armyworm, striga weed, and low soil fertility. While previous research has emphasized the significance of socioeconomic factors in explaining farmers' decisions to adopt PPT, the social-psychological factors that influence farmers' adoption intentions have not been extensively studied. Therefore, this study investigated the influence of social-psychological factors on the intention to adopt or increase the land area under PPT based on the theory of planned behavior (TPB). Moreover, this study extends the applicability of the …
The Direct And Indirect Effects Of Mobile Phone Ownership On Maize Yields In Tanzania, Cool Dady Mangole, Kelvin Mulungu, Christian Kamala Kaghoma, Menale Kassie
The Direct And Indirect Effects Of Mobile Phone Ownership On Maize Yields In Tanzania, Cool Dady Mangole, Kelvin Mulungu, Christian Kamala Kaghoma, Menale Kassie
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The study uses the Living Standards Measurement Study-Integrated Surveys on Agriculture to evaluate mobile phone ownership's direct and indirect effect on yields in Tanzania. The results indicate that transitioning from not owning to owning a mobile phone improves maize yields by about 16%. Mobile phones indirectly affect maize yield by facilitating farmers' access to extension services - regardless of the type of provider - but only account for about 2% of the total effects. Considering both direct and indirect effects, this study suggests that extension services partially moderate this causal relationship. Further, the impact of mobile phones is stronger among …
Selective Lure For Bactrocera Dorsalis Based On Shared Palpal And Antennal Responses Across Three Economically Important Tephritid Species, Tibebe Dejene Biasazin, Raphael Njurai Miano, Xavier Cheseto, Shepard Ndlela, Samira A. Mohamed, Teun Dekker
Selective Lure For Bactrocera Dorsalis Based On Shared Palpal And Antennal Responses Across Three Economically Important Tephritid Species, Tibebe Dejene Biasazin, Raphael Njurai Miano, Xavier Cheseto, Shepard Ndlela, Samira A. Mohamed, Teun Dekker
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The oriental fruit fly Bactrocera dorsalis is a highly destructive and invasive pest that threatens global horticulture, causing economic losses due to fruit damage and quarantine regulations. While attract-and-kill baits are widely used to suppress fly populations, these baits also impact many non-target species. To achieve ecological sustainability, our study aimed to develop a method that selectively targets female fruit flies. Using gas chromatography coupled to electro-antennal or palpal detection (GC-EAD/GC-EPD), we identified compounds that elicited responses in the maxillary palp and antenna of three different fruit flies including B. dorsalis, Ceratitis capitata, and Zeugodacus cucurbitae. As previous studies indicated …
Fire And Mammal Herbivory On Arthropods In The Protected Savannas: A Systematic Review, Ludzula Mukwevho, Mduduzi Ndlovu, Frank Chidawanyika
Fire And Mammal Herbivory On Arthropods In The Protected Savannas: A Systematic Review, Ludzula Mukwevho, Mduduzi Ndlovu, Frank Chidawanyika
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Protected areas in the savannas are key global reserves for biological diversity, including arthropods. Fire and mammal herbivory disrupts the diversity of biological organisms that alternately affects the functioning of the ecosystem. The study presents a global synthesis review of arthropod responses to varying intensities of fires and mammal herbivory in the protected savannas. We hypothesise that the intensity of predetermined fires and mammal herbivory has cascading impacts on abundance, species richness and diversity of terrestrial arthropods in the protected savannas. A minimum selection criteria was used to collate relevant literature from electronic databases of previous studies performed in the …
Mathematical And Computational Modeling For Organic And Insect Frass Fertilizer Production: A Systematic Review, Malontema Katchali, Edward Richard, Henri E.Z. Tonnang, Chrysantus M. Tanga, Dennis Beesigamukama, Kennedy Senagi
Mathematical And Computational Modeling For Organic And Insect Frass Fertilizer Production: A Systematic Review, Malontema Katchali, Edward Richard, Henri E.Z. Tonnang, Chrysantus M. Tanga, Dennis Beesigamukama, Kennedy Senagi
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Organic fertilizers have been identified as a sustainable agricultural practice that can enhance productivity and reduce environmental impact. Recently, the European Union defined and accepted insect frass as an innovative and emerging organic fertilizer. In the wider domain of organic fertilizers, mathematical and computational models have been developed to optimize their production and application conditions. However, with the advancement in policies and regulations, modelling has shifted towards efficiencies in the deployment of these technologies. Therefore, this paper reviews and critically analyzes the recent developments in the mathematical and computation modeling that have promoted various organic fertilizer products including insect frass. …
Knowledge And Acceptance Of Insects As Feed Source For Poultry Production In Conflict Affected Regions Of Cameroon, Chaba F. Ambele, Ngantu Harrison, Shaphan Y. Chia, Zewdu Abro, Komivi S. Akutse, Akum E. Akumeyam, Chrysantus M. Tanga
Knowledge And Acceptance Of Insects As Feed Source For Poultry Production In Conflict Affected Regions Of Cameroon, Chaba F. Ambele, Ngantu Harrison, Shaphan Y. Chia, Zewdu Abro, Komivi S. Akutse, Akum E. Akumeyam, Chrysantus M. Tanga
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Globally, insects are increasingly being considered as sustainable and complementary feeds for poultry production. However, there is a lack of information on the perception of people in vulnerable and conflict-affected communities in Cameroon. This paper presents a survey on awareness and willingness to integrate insect meals in poultry feeds in the Northwest and Southwest regions of Cameroon. During this survey, purposive and snowball sampling procedures were used to collect data from 253 households. Among those interviewed, 32% were internally displaced people and 68% residents. In general, 97% of the respondents were aware that insects are a natural food source for …
Unpacking The Benefits Of Black Soldier Fly Frass Fertilizer Towards Nematode Suppression And Potato Production, Emmanuel O. Anedo, Dennis Beesigamukama, Benson Mochoge, Nicholas K. Korir, Solveig Haukeland, Xavier Cheseto, Moses Nyongesa, Patrick Pwaipwai, Sevgan Subramanian, Abdou Tenkouano, Betty Kibaara, Chrysantus M. Tanga
Unpacking The Benefits Of Black Soldier Fly Frass Fertilizer Towards Nematode Suppression And Potato Production, Emmanuel O. Anedo, Dennis Beesigamukama, Benson Mochoge, Nicholas K. Korir, Solveig Haukeland, Xavier Cheseto, Moses Nyongesa, Patrick Pwaipwai, Sevgan Subramanian, Abdou Tenkouano, Betty Kibaara, Chrysantus M. Tanga
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Potato production is hindered by soil degradation and nematode infestation. Mineral fertilizers and synthetic nematicides are costly and cause negative impacts on humans and the environment, while organic fertilizers are less effective for soil health and nematode management. This study demonstrates the contribution of black soldier fly frass fertilizer (BSFFF) in nematode suppression and potato productivity when compared to commercial mineral fertilizer, organic fertilizer (SAFI), and nematicide. The on-farm experiments consisted of eight treatments: BSFFF, SAFI, BSFFF+5%chitin, NPK+nematicide, 50%BSFFF+50%NPK, 50%SAFI+50%NPK, 50%BSFFF+5% chitin+50%NPK, and control (unfertilized soil). Results revealed that all fertilizer treatments significantly increased potato growth, number of tubers (34 …
Mapping Global Research On Mycotoxins In Aquafeed From Scientometric And Critical Perspectives, Menaga Meenakshisundaram, Sudarshan Shanmugam, Jimmy B. Mboya, Felix Sugantham, Kevin Obiero, Jonathan Munguti, Sunday Ekesi, Sevgan Subramanian, Shaphan Y. Chia, Dennis Beesigamukama, Rodrigue Yossa, Chrysantus M. Tanga
Mapping Global Research On Mycotoxins In Aquafeed From Scientometric And Critical Perspectives, Menaga Meenakshisundaram, Sudarshan Shanmugam, Jimmy B. Mboya, Felix Sugantham, Kevin Obiero, Jonathan Munguti, Sunday Ekesi, Sevgan Subramanian, Shaphan Y. Chia, Dennis Beesigamukama, Rodrigue Yossa, Chrysantus M. Tanga
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The global significance of mycotoxins in aquaculture is evident. However, regional vulnerabilities, effects, and inconsistent regulations on mycotoxin contamination remain underexplored. This study integrates a scientometric analysis of research on mycotoxins in aquafeed, published from 1992 to 2023 in Web of Science, with a conventional review of their occurrence in aquafeed and feed ingredients. Bibliometric tools, VOSviewer, and biblioshiny, were used to analyze global research trends, collaborations, and themes. We found a total of 181 publications, authored by 938 researchers from 49 countries, with Brazil leading (25 publications). The Toxins journal accounted for the most publications (23). Aflatoxins, particularly aflatoxin …
Edible Insects As A Sustainable Solution To Food Insecurity In Conflict-Ridden Regions Of Cameroon, F. C. Ambele, S. Y. Chia, D. Nsobinenyui, K. S. Akutse, N. H. Ngantu, A. E. Akumeyam, M. Kababu, C. M. Tanga
Edible Insects As A Sustainable Solution To Food Insecurity In Conflict-Ridden Regions Of Cameroon, F. C. Ambele, S. Y. Chia, D. Nsobinenyui, K. S. Akutse, N. H. Ngantu, A. E. Akumeyam, M. Kababu, C. M. Tanga
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Edible insects are integral part of traditional Cameroonian dishes and delicacies valued for their nutrition and health/medicinal benefits. This study documents indigenous knowledge, practices, cultural relevance and the willingness to explore the untapped potential of insect farming in two conflict-ridden regions of Cameroon. Semi-structured questionnaires were used to collect data from 793 randomly selected households in the Northwest (NW) and Southwest (SW) regions. Our results revealed widespread awareness on the use of insects as food in the NW (91%) and SW (84%) regions. The most consumed species were the long-horned grasshoppers (90%), termites (85%), palm weevil larvae (76%), and giant …
Do Rates Matter? Validation Of Insect Frass Fertilizer Rates In A Vegetable Intensified Push-Pull Technology For Optimal Sustainable Production, Priscilla Mwikali Kimuli, Dennis Beesigamukama, Judy Wambua, Bonoukpoe Mawuko Sokame, Chrysantus Mbi Tanga, Frank Chidawanyika, Sevgan Subramanian, Daniel Munyao Mutyambai
Do Rates Matter? Validation Of Insect Frass Fertilizer Rates In A Vegetable Intensified Push-Pull Technology For Optimal Sustainable Production, Priscilla Mwikali Kimuli, Dennis Beesigamukama, Judy Wambua, Bonoukpoe Mawuko Sokame, Chrysantus Mbi Tanga, Frank Chidawanyika, Sevgan Subramanian, Daniel Munyao Mutyambai
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Push–pull system intensification with vegetables (VIPPT) has contributed significantly in maintaining good control of lepidopteran pests and parasitic weeds with additional food and nutritional security benefits. However, the impact of integration of different rates of black soldier fly frass fertilizer (BSFFF) in the VIPPT to enhance productivity, has not been explored. This study investigated the effects of different BSFFF application rates on growth performance, pest infestation severity, diversity of natural enemies and yield of kale (Brassica oleracea L. var. acephala) grown under VIPPT in two agroecological zones. Plants were grown in soils amended with five different levels of BSFFF (0, …
The Physicochemical Properties, Biochemical Makeup, And Health Benefits Of Honey Produced From Stingless Bees (Apidae: Meliponini), Belay Gezahegn Gebreyes, Tilahun A. Teka, Yetenayet Bekele Tola, Metekia Tamiru, Nkoba Kiatoko
The Physicochemical Properties, Biochemical Makeup, And Health Benefits Of Honey Produced From Stingless Bees (Apidae: Meliponini), Belay Gezahegn Gebreyes, Tilahun A. Teka, Yetenayet Bekele Tola, Metekia Tamiru, Nkoba Kiatoko
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This review provides a comprehensive overview of stingless bee honey (SBH), focusing on its physicochemical properties, biochemical composition, and health benefits. SBH exhibits unique characteristics, including color, flavor, texture, and lower thermal stability, influenced by various botanical sources, stingless bee species, and diverse geographic and climatic conditions. These environmental factors, particularly floral diversity and climate, significantly affect SBH’s composition and functional properties, resulting in regional variations that impact its market value and health potential. The review details the composition ranges of SBH, which include moisture content (13.26%–41%), total acidity (12.59–270 meq/kg), reducing sugar (22.44%–78.95%), electrical conductivity (0.11–101.88 mS/cm), hydroxymethylfurfural (HMF) …
Nature-Based Land Management Practices And Yield Dynamics In Oil Palm Production: Insights From Indonesian Smallholder Growers, Kibrom T. Sibhatu, Martin Paul Tabe-Ojong, Hermanto Siregar
Nature-Based Land Management Practices And Yield Dynamics In Oil Palm Production: Insights From Indonesian Smallholder Growers, Kibrom T. Sibhatu, Martin Paul Tabe-Ojong, Hermanto Siregar
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Nature-based land management (NLM) practices are increasingly promoted for their potential to bridge yield gaps and increase overall crop production. Yet, the extent of NLM adoption, the factors driving it, and its impact on yields remain unknown, particularly among smallholder farmers. This study addresses this knowledge gap using a unique three-round panel dataset from independent smallholder oil palm growers in Indonesia, focusing on three main NLM practices: composting, manual weeding, and organic soil amendments (SA) using lime and gypsum. We employ panel data estimators and a multivariate probit model to examine the yield effects of these practices and assess any …
Challenges And Lessons From A Vector Control Campaign Targeting Glossina Palpalis Palpalis In An Isolated Protected Forest Area In Abidjan, Côte D’Ivoire, Yao Jean Rodrigue Konan, Bi Tra Dieudonné Ta, Djakaridja Berté, Bamoro Coulibaly, Kinifo Donatien Coulibaly, Nick Steven Egnankon, Foungniguée Diarrassouba, Kouassi Albert Djabo, Stéphanie Watier-Grillot, Jean Paul Demoncheaux, Koffi Alain De Marie Kouadio, Louis N’Dri, Philippe Solano, Sophie Ravel, Guy Pacôme Adingra, Antoine Barreaux, Adeline Ségard, Dramane Kaba, Vincent Jamonneau, Thierry De Meeûs, Vincent Djohan
Challenges And Lessons From A Vector Control Campaign Targeting Glossina Palpalis Palpalis In An Isolated Protected Forest Area In Abidjan, Côte D’Ivoire, Yao Jean Rodrigue Konan, Bi Tra Dieudonné Ta, Djakaridja Berté, Bamoro Coulibaly, Kinifo Donatien Coulibaly, Nick Steven Egnankon, Foungniguée Diarrassouba, Kouassi Albert Djabo, Stéphanie Watier-Grillot, Jean Paul Demoncheaux, Koffi Alain De Marie Kouadio, Louis N’Dri, Philippe Solano, Sophie Ravel, Guy Pacôme Adingra, Antoine Barreaux, Adeline Ségard, Dramane Kaba, Vincent Jamonneau, Thierry De Meeûs, Vincent Djohan
All Peer-Reviewed Publications
Vector control (VC) is one of the strategies employed to manage African trypanosomoses. This study aimed at assessing the effectiveness of a VC campaign against Glossina palpalis palpalis using tiny targets (TTs) impregnated with insecticide in an isolated, protected forest in Abidjan, Côte d’Ivoire, while considering ecological, genetic, and operational factors. Between January 2020 and September 2022, 2,712 TTs were deployed at 684 sites, covering a total area of 1.7 km2. VC monitoring was conducted using Vavoua traps during 12 evaluation surveys, between June 2020 and March 2023. Five months after the initial TT deployment, tsetse fly density had decreased …
Unraveling The Potential Of Black Soldier Fly Larvae As A Sustainable Protein Source For Nile Tilapia Production In Diverse Aquaculture Systems, Jonathan Munguti, Mavindu Muthoka, Jimmy B. Mboya, Domitila Kyule, Menaga Meenakshisundaram, Chrysantus M. Tanga
Unraveling The Potential Of Black Soldier Fly Larvae As A Sustainable Protein Source For Nile Tilapia Production In Diverse Aquaculture Systems, Jonathan Munguti, Mavindu Muthoka, Jimmy B. Mboya, Domitila Kyule, Menaga Meenakshisundaram, Chrysantus M. Tanga
All Peer-Reviewed Publications
Aquaculture plays a critical role in global food security, with Nile tilapia (Oreochromis niloticus) recognized for its adaptability and robust growth. However, traditional feeds, heavily reliant on fishmeal (FM) and soybean meal, face economic and environmental challenges. In response, black soldier fly larvae meal (BSFLM) has emerged as a promising, nutrient-dense alternative. This review synthesizes existing literature on BSFLM’s nutritional profile and its suitability for Nile tilapia diets, while acknowledging that the data come from diverse independent studies conducted under varying environmental conditions and husbandry practices. BSFLM consistently provides high-quality protein (29.9%–48.2%), aligning with tilapia’s requirements, and is rich in …
Processed Amaranth And Finger Millet Enriched With Cricket Flour Influence The Functionality, Microbial Quality, Shelf Life, And Consumer Preference Of The Porridge Products, Nelly Maiyo, Michael Okoth, George Abong, Brian O. Ochieng, Fathiya Khamis, Margaret Kababu, Chrysantus M. Tanga
Processed Amaranth And Finger Millet Enriched With Cricket Flour Influence The Functionality, Microbial Quality, Shelf Life, And Consumer Preference Of The Porridge Products, Nelly Maiyo, Michael Okoth, George Abong, Brian O. Ochieng, Fathiya Khamis, Margaret Kababu, Chrysantus M. Tanga
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Exploration of nutritious, cheap, and easy-to-prepare locally available complementary foods using different processing techniques is gaining traction globally. This study evaluated the impact of three processing techniques (roasting, germination, and fermentation) on finger millet and amaranth quality. The implications of blending processed products with 10% cricket flour on the functional properties, microbial safety, and shelf life of the porridge products were tested. Thereafter, consumer preference and acceptability of the cooked porridge products were assessed with randomly enrolled panelist of mothers (20–66 years), as primary caregivers. Our results showed that powder from germinated cereal products had higher swelling power, water absorption …
Annual Diversity Of Honey Bee Pollen Sources In Two Pumpkin Growing Landscapes, Machakos County, Kenya, Marystella W. Nang’Oni, Muo Kasina, Rebecca Karanja, Mary M. Guantai, Rahab N. Kinyanjui, Evanson R. Omuse, Michael H.G. Lattorff, Elfatih M. Abdel-Rahman, Marian Adan, Samira A. Mohamed, Thomas Dubois
Annual Diversity Of Honey Bee Pollen Sources In Two Pumpkin Growing Landscapes, Machakos County, Kenya, Marystella W. Nang’Oni, Muo Kasina, Rebecca Karanja, Mary M. Guantai, Rahab N. Kinyanjui, Evanson R. Omuse, Michael H.G. Lattorff, Elfatih M. Abdel-Rahman, Marian Adan, Samira A. Mohamed, Thomas Dubois
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Multi-floral foraging sources for honey bee (Apis mellifera L.) have been threatened by landscape changes and unsustainable farming practices. In East Africa, the biodiversity of forage resources that could support honey bees, especially in agricultural lands, remains least explored. This study investigated pollen diversity for honey bees in Yatta and Masinga Sub-counties in Machakos County, Kenya. Honey bee hives were installed on eight pumpkin (Cucurbita maxima Duchesne ex Lam) farms (one hive per farm) in two varying landscape vegetation classes (low and medium) based on normalized difference vegetation index (NDVI). Pollen traps were installed at the hive entrance and pollen …
Contribution Of Different Frass Fertilizer Products On Enhanced Growth, Yield And Nutrient Quality Of Broccoli [Brassica Oleracea], Noella Kagehi, Dennis Beesigamukama, Chrysantus M. Tanga, Mathew P. Ngugi, Sevgan Subramanian, Fathiya M. Khamis
Contribution Of Different Frass Fertilizer Products On Enhanced Growth, Yield And Nutrient Quality Of Broccoli [Brassica Oleracea], Noella Kagehi, Dennis Beesigamukama, Chrysantus M. Tanga, Mathew P. Ngugi, Sevgan Subramanian, Fathiya M. Khamis
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Vegetables are crucial for food security and income, but in developing countries their production is hindered by low soil fertility. Although the insect frass fertilizer is a potential solution, its use is constrained by limited product choices. Unlike conventional fertilizers, which are available in different forms, the insect frass fertilizer is mostly available in solid form. Here, we evaluated the effects of different black soldier fly frass fertilizer (BSFFF) products on broccoli [Brassica oleracea] growth, yield, and nutritional profiles. Solid, liquid BSFFF, chitin-fortified solid BSFFF, chitin-fortified liquid BSFFF, and commercial organic fertilizer (Safi) were applied at rates equivalent to 250 …