A5024202214- Phytoplasmas and Hemiptera pathogens
- Mosquito-borne diseases and control
- Insect-Plant Interactions and Control
- Insect symbiosis and bacterial influences
- Plant Pathogenic Bacteria Studies
- Cocoa and Sweet Potato Agronomy
- Agricultural Practices and Plant Genetics
- Banana Cultivation and Research
- Entomopathogenic Microorganisms in Pest Control
- Virus-based gene therapy research
- Research on scale insects
- Viral Infectious Diseases and Gene Expression in Insects
- Species Distribution and Climate Change
- Insect behavior and control techniques
- Insect Resistance and Genetics
- CRISPR and Genetic Engineering
International Centre of Insect Physiology and Ecology
2018-2021
Centre for Research and Development
2021
University of Bonn
2018-2020
Abstract Huanglongbing (HLB) is a serious disease of Citrus sp. worldwide. In Africa and the Mascarene Islands, similar known as African citrus greening (ACG) associated with bacterium Candidatus Liberibacter africanus (Laf). recent years, asiaticus (Las) severe HLB has been reported in Ethiopia. Thus, we aimed to identify species affecting citrus, vectors Eastern their ecological distribution. We assessed presence generic symptomatic leaf samples by quantitative PCR. Subsequently, sequenced...
Abstract Aim To quantify current and predict future distribution of the citrus greening pathogens “Candidatus Liberibacter asiaticus ” (Las) in Africa africanus (Laf) globally. Location Africa. Methods Three species models (MaxEnt, BIOCLIM Boosted Regression Trees) were used to potential Las Africa, global Laf, using long‐term bioclimatic variables. Two climate change scenarios (moderate extreme) employed determine how alterations may affect Presence data from reports Las, as well new...
African citrus greening disease (ACGD) is considered as one of the major diseases threatening production in East Africa. Our study aimed for first time to assess incidence, severity, and distribution patterns ACGD Kenya Tanzania. In total, 105 orchards were assessed 13 regions representing low, mid, high altitude areas. each backyard orchard, trees randomly selected rated visual symptoms; then leaves insect samples collected analysis 'Candidatus Liberibacter africanus' (CLaf), presumptive...
Abstract The African citrus triozid (ACT), Trioza erytreae Del Guercio, is a destructive pest particularly on citrus, and vectors, “ Candidatus ” Liberibacter africanus (CLaf), which the causal agent of greening disease. Our study seeks to establish distribution host‐plant relationship ACT across production areas in Kenya. We also modelled risk spread using maximum entropy modelling algorithm with known occurrence data. results infer that widely distributed causes severe damage four...
Abstract African citrus greening (ACGD) and huanglongbing (HLB) diseases are the most damaging of worldwide. Currently, disease has no cure been attributed to collapse industry in several countries. In Africa, causative agent “ Candidatus ” Liberibacter africanus is vectored by triozid (ACT) Trioza erytreae Del Guercio (Hemiptera: Triozidae). native Africa but recently reported Asia Europe. Apart from citrus, Murraya koenigii (L.) Clausena anisata (Willd) Hook. F. ex Benth. also considered...
Abstract The African citrus triozid Trioza erytreae Del Guercio (Hemiptera: Triozidae) is the most destructive pest. Presently, biological data on T. are insufficient for important parameters like distribution, seasonal dynamics and entomopathogens. Therefore, we determined temporal of along three different altitudinal gradients in Kenya. In low altitudes, females reactivated started laying eggs between late February early March. mean monthly number immature stages per flush shoot peaked...
Abstract The African citrus triozid (ACT), Trioza erytreae Del Guercio (Hemiptera: Triozidae), is the major vector of ‘ Candidatus Liberibacter africanus’, associated with greening disease [huanglongbing (HLB)]. Although T. a very destructive pest in production yield losses up to 100%, there limited information on its thermal biology, which prerequisite for developing an environmentally friendly management strategy. This study investigated effect temperature development and survival under...
The Asian citrus psyllid (Diaphorina citri) is a key pest of Citrus spp. worldwide, as it acts vector for "Candidatus Liberibacter asiaticus (Las)", the bacterial pathogen associated with destructive Huanglongbing (HLB) disease. Recent detection D. citri in Africa and reports Las-associated HLB Ethiopia suggest that industry on continent under imminent threat. Endosymbionts gut bacteria play roles biology arthropods, especially regards to vector-pathogen interactions resistance antibiotics....
Abstract The African citrus triozid (ACT) Trioza erytreae (Del Guercio) (Hemiptera: Triozidae) and the Asian psyllid (ACP) Diaphorina citri (Kuwayama) Liviidae) are primary vectors of ‘ Candidatus ’ Liberibacter spp. ACT is associated with africanus’ (CLaf) causal agent greening disease (ACGD), whereas ACP asiaticus’ (CLas) americanus’ (CLam), American strains, respectively, huanglongbing. A preliminary survey in Kenyan groves after invasion had revealed that lime‐green sticky traps (Asacp)...
Abstract The African citrus triozid (ACT), Trioza erytreae (Del Guercio), is the primary vector of Candidatus Liberibacter africanus (CLaf), causative agent Africa greening disease (ACGD). This study evaluates diversity ACT parasitoids and further characterizes endosymbionts associated with both T. its that could be used as biological control agents management ACGD. Mitochondrial cytochrome oxidase I gene was to reconstruct phylogeny, while 16S rRNA for bacterial phylogeny. One...