Article
Entomology
Lanjiao Wang, Alina Soto, Laure Remue, Ana Lucia Rosales Rosas, Lander De Coninck, Sam Verwimp, Johanna Bouckaert, Mathias Vanwinkel, Jelle Matthijnssens, Leen Delang
Summary: The emergence of West Nile virus and Usutu virus in Europe poses a significant risk to public health. This study in Belgium identified amino acid substitutions associated with insecticide resistance in Culex mosquitoes, highlighting the importance of mosquito surveillance for effective arbovirus outbreak control strategies.
JOURNAL OF MEDICAL ENTOMOLOGY
(2022)
Article
Immunology
Hongying Zhang, Mingqiang Li, Ruixiang Tan, Changsheng Deng, Bo Huang, Zhibin Wu, Shaoqing Zheng, Wenfeng Guo, Fei Tuo, Yueming Yuan, Carlos Alberto Bandeira, D'almeida Herodes Rompao, Qin Xu, Jianping Song, Qi Wang
Summary: Malaria is a serious parasitic disease that kills thousands of people annually, particularly in Africa. Sao Tome and Principe have stable transmission of malaria, but local Anopheles gambiae mosquitoes show resistance to insecticides like DDT and fenitrothion. This resistance status, especially to cypermethrin, is concerning and requires serious consideration by the government for future malaria vector management.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Review
Entomology
Souhail Aboulfadl, Fouad Mellouki, Brahim Aouinty, Chafika Faraj
Summary: Mosquito larvae populations of Cx. pipiens in urban areas of Morocco have developed varying levels of resistance to pesticides temephos and chlorpyriphos, potentially compromising mosquito control efforts. This resistance is likely due to heterogeneous selection pressure triggered by local treatment practices.
INTERNATIONAL JOURNAL OF PEST MANAGEMENT
(2022)
Article
Biotechnology & Applied Microbiology
Chuanhui Zang, Xuejun Wang, Peng Cheng, Lijuan Liu, Xiuxia Guo, Haifang Wang, Ziwei Lou, Jingjing Lei, Wenqian Wang, Yiting Wang, Maoqing Gong, Hongmei Liu
Summary: Multiple kdr alleles associated with insecticide resistance are present in the Cx. p. pallens populations of Shandong Province, China. The geographical distributions of these mutations are likely due to prolonged and extensive insecticide application in agricultural contexts and mosquito population migrations. In contrast, the low-frequency kdr mutation detected in central Shandong Province populations may originate from limited selection pressure and genetic isolation in this area.
Article
Parasitology
Derciliano Lopes da Cruz, Marcelo Henrique Santos Paiva, Duschinka Ribeiro Duarte Guedes, Elainne Christine de Souza Gomes, Silvia Goncalves Pires, Lara Ferrero Gomez, Constancia Flavia Junqueira Ayres
Summary: The study revealed the presence of the L1014F allele in the An. arabiensis population from Cabo Verde for the first time, as well as an increase in the frequency of the kdr L1014S allele reported in a previous study. These results indicate the need to establish new approaches in vector control programs in Cabo Verde.
PARASITES & VECTORS
(2021)
Article
Entomology
Ioana Georgeta Stancu, Florian Liviu Prioteasa, Georgiana Victorita Tiron, Ani Ioana Cotar, Elena Falcuta, Daniela Porea, Sorin Dinu, Cornelia Svetlana Ceianu, Ortansa Csutak
Summary: Resistance mutations to insecticides have been found in Culex pipiens mosquitoes in south-eastern Romania, particularly to pyrethroid insecticides. It is recommended to limit the use of pyrethroids and continuously monitor resistance mutations.
Article
Biochemistry & Molecular Biology
Amal Ramzi, Abdelhakim El Ouali Lalami, Saoussan Annemer, Yassine Ez Zoubi, Amine Assouguem, Mikhlid H. Almutairi, Mohamed Kamel, Ilaria Peluso, Sezai Ercisli, Abdellah Farah
Summary: Mosquitoes are important vectors for transmitting various diseases. Chemical insecticides have drawbacks, leading to the study of binary monoterpene combinations. The results suggest that these combinations show strong insecticidal effects, providing potential for developing botanical insecticides.
Article
Biochemistry & Molecular Biology
O. Sy, P. C. Sarr, B. S. Assogba, M. Ndiaye, A. K. Dia, A. Ndiaye, M. A. Nourdine, O. K. Gueye, L. Konate, O. Gaye, O. Faye, E. A. Niang
Summary: Malaria transmission has been significantly reduced in central western Senegal due to effective control interventions, but residual transmission persists in certain areas, possibly due to the increase and spread of insecticide resistance genes among natural malaria vectors populations. Proper assessment of insecticide resistance is crucial for understanding and addressing residual transmission.
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
(2021)
Article
Zoology
Hend H. A. Salem, Shaimaa H. Mohammed, Randa I. Eltaly, Moataz A. M. Moustafa, Adrien Fonagy, Shaimaa M. Farag
Summary: This study investigated the dose-response of two insecticides (bendiocarb and diflubenzuron) and two fungi (Beauveria bassiana and Metarhizium anisopliae) against 3rd instar C. pipiens larvae. The results showed that diflubenzuron was more effective than bendiocarb, and M. anisopliae was more effective than B. bassiana. Synergistic interactions were observed between diflubenzuron and M. anisopliae. The study also observed changes in enzyme activity and histological abnormalities following the treatments.
JOURNAL OF INVERTEBRATE PATHOLOGY
(2023)
Article
Parasitology
Achille Jerome Binyang, Emmanuel Elanga-Ndille, Billy Tene-Fossog, Cyrille Ndo, Lynda Nouage, Tatiane Assatse, Yvan Fotso-Toguem, Raymond Tabue, Francis Zeukeng, Daniel Nguete Nguiffo, Josiane Etang, Flobert Njiokou, Charles S. Wondji
Summary: This study assessed the resistance of major malaria vectors in Cameroon to carbamates and organophosphates, and found resistance in some areas. The study also identified the presence of the Ace-1 target-site G119S mutation in An. gambiae populations, potentially impacting the effectiveness of IRS using these insecticides.
PARASITES & VECTORS
(2022)
Article
Microbiology
Yi-ting Wang, Rui-xin Shen, Dan Xing, Chen-pei Zhao, He-ting Gao, Jia-hong Wu, Ning Zhang, Heng-duan Zhang, Yan Chen, Tong-yan Zhao, Chun-xiao Li
Summary: The study found differences in midgut microbiota among different strains of Culex pipiens quinquefasciatus, with specific microbial species being more abundant in resistant strains. Principal component analysis showed significant differences in metabolic functions between susceptible and resistant strains.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Agronomy
Soukaina Arich, Najlaa Assaid, Hassan Taki, Mylene Weill, Pierrick Labbe, M'hammed Sarih
Summary: This study showed that populations of Culex pipiens in Morocco are a mix of pipiens and molestus forms, with significant gene flow for resistance alleles. The mosquitoes are resistant to all insecticide families across the country, with higher resistance to those used for mosquito control. Resistance alleles are more prevalent for mosquito control insecticides, but their distribution varies between regions, highlighting the importance of local insecticide treatment practices. Further research is needed to understand the spread of resistance in Morocco and the role of agriculture/urban residuals.
PEST MANAGEMENT SCIENCE
(2021)
Article
Parasitology
Rosine Z. Wolie, Alphonsine A. Koffi, Ludovic P. Ahoua Alou, Eleanore D. Sternberg, Oulo N'Nan-Alla, Amal Dahounto, Florent H. A. Yapo, Kpahe M. H. Kanh, Soromane Camara, Welbeck A. Oumbouke, Innocent Z. Tia, Simon-Pierre A. Nguetta, Matthew B. Thomas, Raphael NGuessan
Summary: The insecticide target site mutations of Kdr L1014F and Ace-1(R) G119S showed no significant association with Plasmodium infection in wild Anopheles gambiae and Anopheles coluzzii, indicating similar competence of these species in transmitting Plasmodium in Bouake. Other factors such as behavioral and environmental influences should be considered in understanding vector competence.
PARASITES & VECTORS
(2021)
Article
Infectious Diseases
Jeanne N. Samake, Solomon Yared, Dejene Getachew, Peter Mumba, Dereje Dengela, Gedeon Yohannes, Sheleme Chibsa, Joseph Spear, Seth R. Irish, Sarah Zohdy, Meshesha Balkew, Tamar E. Carter
Summary: The study analyzed the kdr locus in the mosquito Anopheles stephensi from different regions in eastern Ethiopia and found a low frequency of kdr mutations. The study also suggested the existence of other molecular mechanisms of pyrethroid resistance in these mosquitoes.
INFECTION GENETICS AND EVOLUTION
(2022)
Article
Entomology
Muhammad M. Mukhtar, Sulaiman S. Ibrahim
Summary: Outbreaks of dengue and yellow fever are increasing in Nigeria, and controlling these arboviral diseases requires understanding of mosquito vectors and their insecticide resistance. This study characterized two populations of Aedes aegypti in Nigeria and found increasing resistance to insecticides, posing challenges for control measures.