Backyard tiger mosquito control

About Biogents

Biogents USA is an affiliate of the Biogents AG that is located in Germany. Biogents’ scientists develop and produce mosquito traps and mosquito attractants.

“How does a mosquito find its host? And what can you do about it?”

Answering these seemingly simple questions was the work of Dr. Martin Geier and some of his collegues at the Institute of Zoology at the University of Regensburg in Germany. More than twelve years were put into both the analysis of the composition of scents and odors that were attractive to mosquitoes and finding the key factors that influence the behavior of these important disease vectors.

The primary motivation behind this research was the application of the results: to develop better methods to control mosquitoes in an intelligent, environmentally safe, and targeted manner. In 2002, Dr. Geier and his collegue Dr. Andreas Rose founded Biogents.

Today, Biogents AG is an innovative company on the forefront of mosquito control research with an excellent reputation. The company is home to 27 staff members and is composed of two business units that complement each other: the development and production of highly efficient mosquito traps and a contract research and development sector in the field of mosquito repellents and related products.

Research and development (R&D) remains a strong point of the company: Biogents’ scientists continue to develop and refine the expertise and the products the company offers.

Download a PDF with a list of the scientific publications of our researchers >


In the product sector, Biogents develops and produces patented mosquito traps which exhibit capture rates that are multiple times better than those of other designs. That is why, for example, Biogents traps are being investigated as a means for combating dengue fever as well: a project that is supported by the World Bank, the Bill-und-Melinda-Gates foundation, and state agencies in Brazil.

Today, the spectrum of Biogents mosquito traps ranges from devices that are used by scientists, health-care specialists, and other professional users worldwide (BG-Sentinel) to those that are used by homeowners (BG-Mosquitaire).

PDF Please click here to download a PDF with a list of scientific studies on Biogents traps >

In the product sector, Biogents develops and produces patented traps for mosquitoes and other blood-sucking insects which exhibit capture rates that are multiple times better than those of other designs.


In our contract research sector, we offer a broad range of methods that can be used to investigate the different modes of action of repellent products: mosquito repellent lotions and sprays, special textiles, repellents acting over a distance, and similar products. Here, Biogents advises, researches, and develops by contract or carries out product comparisons, and provides proofs of effectiveness.

In the meantime, excellent contacts with formulation chemists enabled Biogents to offer also the complete development of mosquito agents.

The Biogents Team

In the contract research sector, Biogents offers a broad range of methods that can be used to investigate the different modes of action of mosquito repellent products

Dr. Martin Geier – Member of the Management Board

Martin Geier studied biology in Regensburg and investigated the sense of smell of mosquitoes in his master’s thesis and doctor’s thesis. He did post-doc work in the Department of Entomology at the University of California in Riverside where he concentrated on the orientation of insects according to scents. After returning to Germany, he became director of the mosquito work group at the Institute of Zoology in Regensburg. A number of field investigations of mosquitoes led him to Brazil. He is a member of the American Mosquito Control Association, the European Mosquito Control Association and the Institute of Biodiversity. Dr. Geier speaks German and English.

Martin Geier

Dr. Andreas Rose – Member of the Management Board

Andreas Rose studied biology in Regensburg and at the University of Colorado in Boulder. In his master’s thesis and doctor’s thesis, he concentrated on the host-finding behavior of the Chagas’ bug, Triatoma infestans. After his post-doc work at the Regensburg Mosquito Lab, he worked for a producer of essential oils and plant extracts in France. There, he was responsible for research and development and for production and quality assurance. He is a member of the European Mosquito Control Association, the Pan-African Mosquito Control Association, the Society of Vector Ecology, the European Network for Arthropod Vector Surveillance for Human Public Health, and the German Association for General and Applied Entomology. He is also a member of the German National Expert Committee “Mosquitoes as Disease Vectors”. Dr. Rose speaks German, English, and French.

Andreas Rose

Dr. Ulla Gordon (née Kröckel) – Director of Contract Research and Development

Ulla Gordon already worked at Regensburg University´s mosquito group as a student and joined the company in 2002. Her PhD thesis investigated so called “push-pull” control strategies for the yellow-fever mosquito Aedes aegypti, in particular the combination of BG-Sentinel traps with plant-derived spatial repellents. Dr. Gordon is the head of Biogents´ contract research and development branch; she is responsible for lab- and field investigations on the effectiveness of repellents to be applied to the skin, spatial repellents, treated apparel and impregnated bednets. In the last 10 years, she has supervised more than 600 anti-mosquito product evaluations. Dr. Gordon is a member of the European and American Mosquito Control Association as well as the Society of Vector Ecology. She speaks German, English, and Portuguese.

Ulla Gordon

Jennifer McCaw, M.Sc. – Head of Sales and Customer Relations

Jennifer McCaw studied zoology at the University of California in Santa Barbara, and received her Master of Science degree from the University of Regensburg. In her master’s thesis, she optimized formulations of attractive odor mixtures for malaria mosquitoes for the mosquito contamination devices of the MCD project. She is head of sales and customer relations, organizes the international dispatch of the traps to distributors, and is the contact for the Biogents sales partners. Ms. McCaw speaks English and German.

Jennifer McCaw

Petra Schultheiss – Key Account Manager

Petra Schultheiss joined our team in April 2017 after several years working for a European NGO in the field of protected areas where she was in charge of project development and membership relations. She now supports the Biogents’ sales team as Key Account Manager, making sure that our international distributors get the products and information they need. As a geographer and cultural scientist by training, she naturally has a big picture view on many subjects. This paired with her passion for traveling comes in handy when it comes to building up new markets around the globe. Mrs. Schultheiss speaks German, English, Spanish and French and understands Portuguese.

Raphaela Reiser – Key Account Manager

Raphaela Reiser studied business economics at the University of Applied Science of Landshut and mainly focussed on marketing-/salesmanagement and Controlling.
After an internship in an global Marketing agency, she worked in the pharmaceutical industry in customer sales. Ms Reiser speaks German and English and understands Italian.

Hanna Rose – Webshop & Customer Service

Hanna Rose originally worked in the Biogents webshops to support her studies in German and English linguistics. She is still very fond of language and grammar, but mosquitoes and their traps grew on her also, and she enjoys the contacts with our international customers. Today, she manages the Biogents Webshops, competently answers all customer questions around the Biogents mosquito traps and their use, and organizes the dispatch of the ordered products. In her leisure time, she teaches horseback riding and trains horses. Ms. Rose speaks German and English.

Hanna Rose

Dr. Silke Göttler – Customer Service and Project Monitoring

Silke Göttler studied biology at the University of Regensburg, Germany. In her master’s thesis and doctor’s thesis she concentrated on cryptic endemism in several crab species using population genetics and morphometric techniques. Phylegenetic, phylogeographic, and ecological questions were parts of her study. Since 2012, she supports us in customer service, project monitoring and development of mosquito protection in gardens, restaurants, hospitals, and camping sites. Ms. Göttler speaks German and English.

Johan Knols – General Manager Southeast Asia

After having worked in the tourism industry in Africa for many years, Johan made a switch to the world of mosquitoes end 2013. He battled malaria mosquitoes as a Field Operations Manager for the EU-sponsored ‘MCD-Project’ in Tanzania and the ‘Eavetube-Project’ sponsored by the Bill & Melinda Gates Foundation in Ivory Coast. Johan is since the beginning of 2017 working in Cambodia, where he set up an office under the name of “Biogents SEA” (Southeast Asia). His main task is to extend our network of (sales) partners in Southeast Asia and to push Biogents’ products to the next level. Johan speaks Dutch, German, English and Kiswahili.

Yvonne Weißflach – Executive Assistant & Customer Service

Yvonne Weißflach originally worked in the accounting and administration of  a real estate business. In January 2017, she was hired by Biogents as an executive assistent, and quickly learned more than just the essentials of mosquito biology and trapping. With her increasing knowledge and experience, she also became a member of the customer support of our webshops and helps to organise the dispatch of the orders. Ms. Weißflach speaks German and English.

Yvonne Weißflach

Sergej Sperling, M.Sc. – Contract R&D: Laboratory Director

Sergej Sperling studied biology at the University of Regensburg. In his master’s thesis, Sergej investigated a novel separation method for extracts in chemical ecology. Sergej joined Biogents in 2014 as part of the EU funded MCD (mosquito contamination device) project and was involved with the development, implementation and evaluation of new anopheline control techniques under semi-field and field conditions in Tanzania. After the completion of the project, Sergej moved to Biogents´Contract Research & Development department as the Laboratory Director, where he is responsible for the Contract Research program. Sergej speaks English, German and Russian.

Sergej Sperling

Maximilian Epple – Contract R&D: Research Assistant

Maximilian Epple is a state-approved biotechnical assistant and studied biology at the University of Regensburg. During his Master’s thesis at the Cell Biology and Plant Biochemistry department he focused on a putative amino acid transporter in the thale cress, Arabidosis thaliana. Maximilian Epple joined Biogents contract R&D team as a research assistant in April 2018. He is responsible for testing and evaluating novel trapping systems and he supervises different mosquito monitoring projects in the field. He speaks German and English.

Astrid Schuhbauer, M.Sc. – Testlab and Contract Research

Astrid Schuhbauer studied Biology at the Universities of La Rochelle, France and Vienna, Austria. Her master´s thesis involved field work in the Donau-Auen national park where she mapped the local bird of prey populations. Afterwards Ms. Schuhbauer gained first experience in mosquito control by identifying mosquito breeding sites in the March-Thaya wetlands in Austria and applying Bacillus thuringiensis (Bti) to suppress larval development. She joined our testing service department in April 2012, and is responsible for the efficacy evaluation of impregnated textiles and repellents as well as different mosquito trapping systems. Ms. Schuhbauer speaks French, German, and English.

Astrid Schuhbauer

Ingrid Dietz – Commercial Assistance and Accounting and Inventory Control

After her training as office clerk at the Maschinenfabrik Reinhausen (MR) and her training for foreign language correspondence (IHK), Mrs. Dietz switched to the chemical industry. At Bristol-Myers Squibb GmbH she worked as an export clerk and later as a personnel clerk for DSM Fine Chemicals GmbH. Since July 2012, she has worked for Biogents as our commercial assistant. Besides preparing company and finance accounting, she handles payment transactions, and is responsible for office organization. She is continuously developing and improving our merchandize management system. She coordinates the flow of goods between national and international suppliers, our production facility, warehouse, and international distributors. She organizes the logistics for import and customs. Ms. Dietz speaks German and English.

Ingrid Dietz

Armin Kordus, Dipl.-Ing. VT (FH) – Product Development & Quality Assurance

Armin Kordus studied Process Engineering at the Vocational University of Regensburg. He is responsible for design and engineering in the development of the Biogents mosquito traps, their quality assurance, and technical documentation. Mr. Kordus speaks German, English, French, and Turkish.

Armin Kordus

Farooq Tanveer – Technical Researcher

Farooq Tanveer studied Electrical Engineering at Technical University of Munich (TUM) where he received his Master of Science degree. He did his master’s thesis in finding efficient and cost effective renewable energy solutions for rural areas of developing countries. After working at TUM for a while, he joined Biogents in February 2017 as Technical Researcher for REPULS – a research project funded by United States Agency of International Development (USAID) – to work on the development of innovative indoor and outdoor electrical products for repelling vector mosquitoes through electric fields. Mr. Tanveer speaks English, Urdu, Hindi and Punjabi , and he is also learning German.

Katja Hiller – Logistics & Customs Coordinator

Katja Hiller worked several years for a service provider in the field of customs clearing Export / Import. Since January 2017, she has worked for Biogents as a logistics and customs coordinator. She organizes the international transports and is the contact for customs processing. Ms. Hiller speaks German and English

Katja Hiller

Patrick Gutjahr, M.Sc. – Mosquito Breeding Specialist

Patrick Gutjahr studied biology at Ludwig-Maximilians University in Munich and at the University of Rostock where he mainly focused on marine ecology and zoology. After spending a term abroad at James Cook University in Australia, he did his master´s thesis at the Bavarian State Collection of Zoology in Munich where he conducted morphometric experiments with lantern sharks. Patrick Gutjahr joined Biogents in February 2017 and is supporting the breeding of the mosquitoes. He speaks German and English.

Patrick Gutjahr

Margit Lindner – Mosquito Breeding Specialist

Margit Lindner has been in charge of Biogents mosquito breeding from the very start. She is a psychologist by profession, and we can’t say whether that is the reason she has such good rapport with mosquitoes – at any rate, we can always count on Ms Lindner to provide us with enough active and hungry female mosquitoes for our experiments at any time. Ms. Lindner speaks German and English.

Margit Lindner

Ingeborg Schleip, Dipl.-Biol. – Marketing

Ingeborg Schleip studied biology at the University of Regensburg. After completing her thesis in developmental biology on neurodegenerated mutants of Drosophila, she studied biochemical topics in yeast with the Plant Physiology Group. She then changed her focus, and followed a new path of a trained media designer and digital publisher, teacher of Biology and Chemistry, and then as marketing manager in a biotechnology company. Since April 2013, she heads the marketing department of Biogents. Ms. Schleip speaks German and English.

Ingeborg Schleip

Christian Müller – Marketing

Christian Müller is a trained photographer and digital publisher. After having worked for 10 years as designer in Digital Works and authoring for CD-Rom, Blu-Ray and DVD, he changed into movie-marketing. In July 2017 he joined our marketing-Team and supports us here in the areas of web, social media, video production and the creation of illustrations, picture- and printmaterial.

Dr. Carolin Degener – Research Assistant

Carolin Degener studied Biology in Regenbsurg and obtained her phD in Parasitology from the University of Minas Gerais in Belo Horizonte, Brazil. She had her first contact with Biogents during her time as an undergrad student when she worked as a test subject for our repellent tests. After three internships in our company she decided to dedicate to mosquito research and investigated yellow fever mosquito mass trapping in her master’s and phD theses. After a post-doc at Fiocruz in Rio de Janeiro where she worked in a project that developed a real-time dengue alert system for many Brazilian municipalities, she came back to Biogents in 2016. She mainly conducts data analyses of our studies and supports the marketing team. Carolin fluently speaks German, English, and Portuguese, and understands French.

Dr. Scott Gordon – Senior Scientist

Scott Gordon studied entomology at The Ohio State University and Colorado State University, USA. He has over 30 years experience as a military and public health entomologist, and is Board Certified in Medical and Veterinary Entomology. He conducted research on mosquito control, malaria, scrub typhus, bartonellosis, tick-borne viruses, and numerous mosquito-borne viruses while working in Thailand, Peru, Senegal, Kenya, and the US. Dr. Gordon is a member of the Entomological Society of America, the American Mosquito Control Association, and the Society of Vector Ecology.

Scott Gordon

Michael Weber, Dipl.-Phys. – Technology Development

Michael studied Physics at the TU Clausthal-Zellerfeld and the University of Bremen, and did his thesis work in Mass Spectrometry. After completing his graduate degree, he moved to Silicon Valley where he worked for over 25 years developing instruments for the scientific and semiconductor industry. He has been awarded 15 patents. When working on a project supported by the Bill and Melinda Gates Foundation, Michael got hooked on mosquitoes and technology to fight them. Michael joined our team in early 2016, and is responsible for the development of optical sensors, hardware, and software for the detection and classification of mosquitoes in connection with the EU-sponsored REMOSIS project.

Michael Weber

Carlos Salvatierra Garcia – Spanish translations

Carlos Salvatierra Garcia provides translations for keeping our Spanish documents, print material and website uptodate for our Spanish speaking users and customers. During this process, he has become very close and familiar with the benefits of our traps and services.

Polly, the office dog

Polly joined the company in 2014, shortly after she left Bucharest to settle in Regensburg. She supports the team mentally and physically and monitors all company-related activities with great enthusiasm, especially during lunch breaks. Polly understands different languages (if she wants) and is a member of the ESDA (European Street Dog Association).

Polly, the office dog