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Articles 91 - 120 of 1129

Full-Text Articles in Entomology

Anthropogenic Influences On Parasitoid Wasps’ Biocontrol Of Invasive Insect Pest Species In Africa, Fathiya M. Khamis, Inusa J. Ajene Apr 2025

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 …

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Machine Learning Predicts Non-Preferred And Preferred Vertebrate Hosts Of Tsetse Flies (Glossina Spp.) Based On Skin Volatile Emission Profiles, Olabimpe Y. Orubuloye, David P. Tchouassi, Abdullahi A. Yusuf, Christian W.W. Pirk, Daniel K. Masiga, Edward Kariuki, Baldwyn Torto Apr 2025

Machine Learning Predicts Non-Preferred And Preferred Vertebrate Hosts Of Tsetse Flies (Glossina Spp.) Based On Skin Volatile Emission Profiles, Olabimpe Y. Orubuloye, David P. Tchouassi, Abdullahi A. Yusuf, Christian W.W. Pirk, Daniel K. Masiga, Edward Kariuki, Baldwyn Torto

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Tsetse fly vectors of African trypanosomosis preferentially feed on certain vertebrates largely determined by olfactory cues they emit. Previously, we established that three skin-derived ketones including 6-methyl-5-hepten-2-one, acetophenone and geranyl acetone accounted for avoidance of zebra by tsetse flies. Here, we tested the hypothesis that these three ketones serve as biomarkers for tsetse flies to distinguish between non-preferred- and preferred-vertebrate hosts. We used coupled gas chromatography/mass spectrometry to analyze and compare the skin volatile emissions of two non-preferred- (waterbuck and zebra) and four preferred- (buffalo, donkey, horse, warthog) vertebrate hosts in two wildlife parks in Kenya. We detected a total …

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Defatted Black Soldier Fly Larvae Meal As A Substitute Of Soybean Meal In Dairy Cow Diets, D. J.M. Braamhaar, W. F. Pellikaan, D. List, D. Korir, C. M. Tanga, S. J. Oosting Apr 2025

Defatted Black Soldier Fly Larvae Meal As A Substitute Of Soybean Meal In Dairy Cow Diets, D. J.M. Braamhaar, W. F. Pellikaan, D. List, D. Korir, C. M. Tanga, S. J. Oosting

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The replacement of soybean meal (SBM) with insect meal, e.g. black soldier fly larvae meal (BSFLM), as an alternative protein source in livestock feed is gaining traction globally. To date, no in vivo studies have been conducted to test the impact of BSFLM on the milk production of dairy cows. This study quantified the effects of replacing SBM with defatted black soldier fly larvae meal (DBSFLM) in diets of lactating dairy cows on feed intake, milk production and composition, apparent total-tract digestibility, feed- and nitrogen use efficiency. Twelve lactating Holstein-Friesian cows were used in a replicated 3 × 3 Latin …

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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 Mar 2025

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 …

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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 Mar 2025

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 …

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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 Mar 2025

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 …

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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 Feb 2025

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 …

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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 Feb 2025

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 …

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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 Feb 2025

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 …

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Climate Effects On Honey Bees Can Be Mitigated By Beekeeping Management In Kenya, Malena Sibaja Leyton, H. Michael G. Lattorff, Nkoba Kiatoko, Fabrice Requier Feb 2025

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 …

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Automatic Synthesis Of Insects Bioacoustics Using Machine Learning: A Systematic Review, Henry Kyalo, Henri Tonnang, James Egonyu, John Olukuru, Chrysantus Tanga, Kennedy Senagi Feb 2025

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 …

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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 Feb 2025

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 …

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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 Jan 2025

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

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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 …

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Global Strategies To Manage Huanglongbing (Hlb) And Its Vectors: Insights And Implications For The Mediterranean Region, Meritxell Pérez-Hedo, Mark S. Hoddle, Fernando Alferez, Lochy Batista, George A.C. Beattie, Shourish Chakravarty, Paul Holford, Fathiya Mbarak Khamis, Inusa Jacob Ajene, Aruna Manrakhan, Paul H. Fourie, Maritza Luis, Eduardo Osorio-Hernández, Mamoudou Sétamou, Alejandro Tena, Pedro Takao Yamamoto, Tara Wade, Changyong Zhou, Nian Wang, Lukasz L. Stelinski, Alberto Urbaneja Jan 2025

Global Strategies To Manage Huanglongbing (Hlb) And Its Vectors: Insights And Implications For The Mediterranean Region, Meritxell Pérez-Hedo, Mark S. Hoddle, Fernando Alferez, Lochy Batista, George A.C. Beattie, Shourish Chakravarty, Paul Holford, Fathiya Mbarak Khamis, Inusa Jacob Ajene, Aruna Manrakhan, Paul H. Fourie, Maritza Luis, Eduardo Osorio-Hernández, Mamoudou Sétamou, Alejandro Tena, Pedro Takao Yamamoto, Tara Wade, Changyong Zhou, Nian Wang, Lukasz L. Stelinski, Alberto Urbaneja

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Huanglongbing (HLB), also known as citrus greening disease, poses a severe threat to the global citrus industry. This disease is caused by three species of bacteria, ‘Candidatus Liberibacter asiaticus’, ‘C. L. africanus’, and ‘C. L. ameri-canus’. The primary pathogen vectors are the Asian citrus psyllid (Diaphorina citri Kuwayama, Hemiptera: Psyllidae) and the African citrus psyllid (Trioza erytreae Del Guercio, Hemiptera: Triozidae). The disease is incurable, and its management relies on reducing vector densities and the adverse effects of bacterial infections on host trees. Managing psyllid vec-tors, especially D. citri, has proven exceptionally challenging due to its rapid spread and subsequent …

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Insect Biological Control: A Global Perspective, Lessando M. Gontijo, Jorge B. Torres, Paul K. Abram, Armando Alfaro-Tapia, Hugo C. Arredondo-Bernal, Antonio Biondi, Raymond A. Cloyd, Alejandro C. Costamagna, Nicolas Desneux, Marie D’Ottavio, Michael J. Furlong, Nancy M. Greco, Roselyne Labbe, Martin Hill, Blas Lavandero, Tian Hao Li, José R. Lomelí-Flores, Eric Lucas, Gerben J. Messelink, Margarita Rocca, Marcela Rodriguez-Garcia, José R.P. Parra, Ainara Peñalver-Cruz, Bonoukpoè Mawuko Sokame, Sean Thackeray, Alberto Urbaneja, German Vargas, Myron P. Zalucki, Lian Sheng Zang Jan 2025

Insect Biological Control: A Global Perspective, Lessando M. Gontijo, Jorge B. Torres, Paul K. Abram, Armando Alfaro-Tapia, Hugo C. Arredondo-Bernal, Antonio Biondi, Raymond A. Cloyd, Alejandro C. Costamagna, Nicolas Desneux, Marie D’Ottavio, Michael J. Furlong, Nancy M. Greco, Roselyne Labbe, Martin Hill, Blas Lavandero, Tian Hao Li, José R. Lomelí-Flores, Eric Lucas, Gerben J. Messelink, Margarita Rocca, Marcela Rodriguez-Garcia, José R.P. Parra, Ainara Peñalver-Cruz, Bonoukpoè Mawuko Sokame, Sean Thackeray, Alberto Urbaneja, German Vargas, Myron P. Zalucki, Lian Sheng Zang

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The intentional use of biological control agents to manage arthropod pests dates back to as early as 304 AD, when Chinese farmers used weaver ants to manage citrus pests. Over time, biological control has evolved into distinct approaches: classical, augmentation, and conservation. Prior to the advent of pesticides, most insect pest management relied on natural and classical biological control. The most common strategy used at first, despite regional variations, was the importation of biological control agents. Nonetheless, due to issues with unintentional non-target impacts, numerous failures in the introduction, and longer periods required for implementation, augmentative and conservation approaches have …

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Nutritional And Antioxidant Properties Of Two Species Of Edible Scarab Beetles (Cetonia Aurata And Oryctes Rhinoceros), S. S. Mwanza, C. M. Mudalungu, N. M. Kimani, H. O. Mokaya, B. O. Ochieng, S. Juma, C. M. Tanga Jan 2025

Nutritional And Antioxidant Properties Of Two Species Of Edible Scarab Beetles (Cetonia Aurata And Oryctes Rhinoceros), S. S. Mwanza, C. M. Mudalungu, N. M. Kimani, H. O. Mokaya, B. O. Ochieng, S. Juma, C. M. Tanga

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Edible scarab beetles are important repositories for nutritive and bioactive compounds, but this information remains largely unexplored. This study explored the nutritional and therapeutic properties of two edible scarab beetles from three different locations (Embu, Murangâa and Nairobi Counties) in Kenya. Morphological and molecular characterization of the wild collected larvae revealed two important edible beetle species (Cetonia aurata L. and Oryctes rhinoceros L.). The larvae of both species are excellent source of crude proteins (44% for O. rhinoceros and 63% for C. aurata). The larvae of O. rhinoceros were rich in minerals, particularly calcium (15.75-22.65 mg/g) and potassium (13.62-22.88 mg/g). …

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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 Jan 2025

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. …

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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 Jan 2025

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 …

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Acceptability And Suitability Of Some Poaceae Plants For Fall Armyworm Feeding And Oviposition, Xavier Chiriboga Morales, Islam S. Sobhy, Duncan Cheruiyot, Charles A.O. Midega, Toby J.A. Bruce, Zeyaur R. Khan, Amanuel Tamiru Jan 2025

Acceptability And Suitability Of Some Poaceae Plants For Fall Armyworm Feeding And Oviposition, Xavier Chiriboga Morales, Islam S. Sobhy, Duncan Cheruiyot, Charles A.O. Midega, Toby J.A. Bruce, Zeyaur R. Khan, Amanuel Tamiru

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Background: The fall armyworm (FAW), Spodoptera frugiperda (Lepidoptera: Noctuidae), has invaded new geographical regions, now spanning Africa, Asia, Oceania and Europe, from its native distribution in the last decade. Little is known about FAW host plants in recently invaded habitats; although more than 300 hosts have been reported in the Americas, its native habitat. In our study, we evaluated the acceptability and suitability of 12 cultivated varieties of plants from Africa, in the family Poaceae, for FAW herbivory and oviposition. Methods: Experiments investigating larval development, no-choice oviposition, and no-choice larval arrestment-feeding were conducted to evaluate the insect´s ability to utilize …

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The Genomic Landscape Of Hermetia Illucens: Exploring The Potential Of The Black Soldier Fly Through Molecular Insights, Peter Muchina, Johnson Kinyua, Fathiya Khamis, Chrysantus M. Tanga, Grum Gebreyesus, Zexi Cai, Goutam Sahana Jan 2025

The Genomic Landscape Of Hermetia Illucens: Exploring The Potential Of The Black Soldier Fly Through Molecular Insights, Peter Muchina, Johnson Kinyua, Fathiya Khamis, Chrysantus M. Tanga, Grum Gebreyesus, Zexi Cai, Goutam Sahana

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Abstract The black soldier fly (BSF), Hermetia illucens, has garnered significant attention recently due to its potential applications in waste management, animal feed production, frass fertilizer production, and biotechnology. Despite its numerous advantages, genomic resources for BSF remain limited, underscoring the necessity for continued genomic exploration. This review provides a comprehensive overview of the genomic landscape of BSF, emphasizing the critical role of genomics in understanding its biology and optimizing its applications. We highlighted recent advancements in BSF genome sequencing, transcriptomic and proteomic studies, and the characterization of the gut microbiome, revealing its implications for BSF health and production efficiency. …

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Earth Observations Reveal Impacts Of Climate Variability On Maize Cropping Systems In Sub-Saharan Africa, Adomas Liepa, Michael Thiel, Hannes Taubenböck, Doris Klein, Ingolf Steffan-Dewenter, Marcell K. Peters, Sarah Schönbrodt-Stitt, Insa Otte, Tobias Landmann, Zeyaur R. Khan, Michael Ochieng Obondo, Frank Chidawanyika, Emily A. Martin, Tobias Ullmann Jan 2025

Earth Observations Reveal Impacts Of Climate Variability On Maize Cropping Systems In Sub-Saharan Africa, Adomas Liepa, Michael Thiel, Hannes Taubenböck, Doris Klein, Ingolf Steffan-Dewenter, Marcell K. Peters, Sarah Schönbrodt-Stitt, Insa Otte, Tobias Landmann, Zeyaur R. Khan, Michael Ochieng Obondo, Frank Chidawanyika, Emily A. Martin, Tobias Ullmann

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In Kenya, climate variability and change threaten smallholder, rainfed farms, with crop failures, yield reductions, and pest infestations. Efficient agroecological strategies, such as Push-Pull intercropping, offer documented benefits including pest control, improved soil fertility, and water conservation compared to traditional maize monocropping. To date, no studies exist comparing traditional maize monocropping and Push-Pull intercropping using earth observation tools over several growing seasons in East Africa. Our research addresses this by harmonizing Landsat 7, 8, 9 with Sentinel-2 remote sensing time series from 2016 to 2023. Phenological metrics of 15 growing seasons are extracted based on a threshold method using the …

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Effects Of Insect Meals On Fish Digestibility, Blood Parameters, And Economic Performance: A Meta-Analysis, M. A. Aaqillah-Amr, A. Hidir, M. Ikhwanuddin, N. A. Fatan, R. Muhammad-Rahimi, S. Ning-Shahira, R. G.N. Siankhe, G. W. Vandenberg, C. M. Tanga, R. Yossa Jan 2025

Effects Of Insect Meals On Fish Digestibility, Blood Parameters, And Economic Performance: A Meta-Analysis, M. A. Aaqillah-Amr, A. Hidir, M. Ikhwanuddin, N. A. Fatan, R. Muhammad-Rahimi, S. Ning-Shahira, R. G.N. Siankhe, G. W. Vandenberg, C. M. Tanga, R. Yossa

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This review examines the use of insect meal (IM) as a substitute for fishmeal (FM) in fish feeds within the past decade. While global interest in this alternative is growing, research on its effects on fish digestibility, blood parameters, and economic performance has been limited. Meta-analysis on the apparent digestibility coefficient revealed a negative effect summary on dry matter (0.92) and crude lipid (0.51), although the difference between the two groups was relatively minor. However, a positive effect summary was reported in the apparent digestibility of crude protein (0.12), suggesting a potential advantage in the utilization of protein by fish …

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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 Jan 2025

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 …

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Morphometric Characterization Of Invasive Diaphorina Citri Infesting Citrus And Orange Jasmine In Ghana, Kodwo Dadzie Ninsin, Maxwell Kelvin Billah, Bernard Agyeman Boateng, Jonathan Osei-Owusu, Fred Kormla Ablormeti, Samuel Opuni-Basoa, Aboagye Kwarteng Dofuor, George Edusei, Steve B.S. Baleba, Owusu Fordjour Aidoo Jan 2025

Morphometric Characterization Of Invasive Diaphorina Citri Infesting Citrus And Orange Jasmine In Ghana, Kodwo Dadzie Ninsin, Maxwell Kelvin Billah, Bernard Agyeman Boateng, Jonathan Osei-Owusu, Fred Kormla Ablormeti, Samuel Opuni-Basoa, Aboagye Kwarteng Dofuor, George Edusei, Steve B.S. Baleba, Owusu Fordjour Aidoo

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Morphometric analysis plays a crucial role in the accurate identification and classification of insect pests, which is essential for implementing effective management strategies. The Asian citrus psyllid (Diaphorina citri Kuwayama; Hemiptera: Liviidae), an invasive species and a known vector of ‘Candidatus Liberibacter asiaticus’ and ‘Ca. Liberibacter americanus,’ the bacterial pathogens associated with Huanglongbing (HLB), has recently emerged as a pest of concern in Ghana. Despite its significance, little is known about the biological traits of field populations in the region. In this study, we examined morphometric variation in D. citri populations infesting citrus and orange jasmine (Murraya paniculata) across different …

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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 Jan 2025

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 …

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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 Jan 2025

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 …

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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 Jan 2025

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 …

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Fire And Mammal Herbivory On Arthropods In The Protected Savannas: A Systematic Review, Ludzula Mukwevho, Mduduzi Ndlovu, Frank Chidawanyika Jan 2025

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 …

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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 Jan 2025

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, …

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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 Jan 2025

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) …

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