Benefit from our experience

The Team

 
Linge Agroconsultancy, founded on 1 February 2003, is an independent consulting company specialised in the authorisation of plant protection products, biocides and the approval of active substances in Europe.

Our experienced registration experts are at your side to guide and assist you at every stage of registration of your active substances or products.

 

dr. A.J.G. Engels (Tonnie)

Managing director

+31-(0)481-745045


Tonnie Engels is managing director of Linge Agroconsultancy with more than 25 years of experience in research and consultancy in the agricultural sector. He holds an MSc and PhD in Agricultural Sciences and Crop Protection. Tonnie has gained fundamental and practical research experience during his previous and present activities. He is experienced in regulatory affairs for plant protection products, active substances and biocides. He coordinated and managed regulatory projects for many of these products. In addition, he has been seconded as scientific assessor for both efficacy (PPPs and biocides) and project leading at the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands. Moreover, he has been seconded as a regulatory manager at companies in the crop protection industry. Tonnie speaks Dutch as mother tongue, is fluent in English and proficient in German.

S. van Aken MSc (Sef)

Registration specialist

+31-(0)481-745042


Sef van Aken is a consultant and expert with over 5 years of professional experience in regulatory affairs and consultancy. He holds an MSc in Biology. He is experienced in modelling, risk analyses, evaluation of Human Toxicology, Environmental Fate and Ecotoxicology studies, dossier preparations and post-submission activities on national and European level. He performs evaluations as a scientific assessor Ecotoxicology for the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands. He carried out many projects on registration and approval of plant protection products and substances (also low risk) for both government and trade and industry. Prior to working at Linge Agroconsultancy, he was research employee at a Dutch research organisation specialised in crop protection in agriculture and horticulture. Sef speaks Dutch as mother tongue and is fluent in English.

ir. K. Apenhorst (Karen)

Registration specialist

+31-(0)481-745047


Karen Apenhorst is an expert with over 6 years of professional experience in regulatory affairs and consultancy. She holds an MSc in biology, with a specialisation in plant biology. Her main expertise is Efficacy of plant protection products on national and European level. Additionally, she has experience with comparative assessments, literature studies and working knowledge of risk analyses, environmental fate and ecotoxicology studies, dossier preparations and post-submission activities on national and European level. She performs evaluations as a scientific assessor Efficacy for the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands. She carried out many projects on registration and approval of plant protection products and substances (including low risk) and is an expert on writing and evaluating Biological Assessment Dossiers (BAD) and dRR efficacy for both government and trade and industry. Karen speaks Dutch as mother tongue, is fluent in English, and has working knowledge of German.

ir. P.W.M. de Boer (Paul)

Registration specialist

+31-(0)481-745048


Paul de Boer is a senior consultant and expert with 10 years of professional experience in regulatory affairs and consultancy. He holds an MSc in Plant Breeding and Crop Protection. His main expertise is Efficacy on national and European level on both plant protection products and biocides. He performs evaluations as a scientific assessor Efficacy for the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands. He is an expert on writing and evaluating Biological Assessment Dossiers (BAD) and dRR efficacy for both government and trade and industry. He is experienced in training foreign governmental organizations in Africa. Prior to working at Linge Agroconsultancy, he worked as a plant breeder and as an advisor and researcher in the crop protection area. Paul speaks Dutch as mother tongue and is fluent in English and has working knowledge of Spanish.

Dr. V. Braun (Verena)

Registration specialist

+31-(0)481-745046


Verena Braun holds an PhD in Biology (Plant stress physiology and proteomics). She carries out projects on registration and approval of plant protection products, adjuvants and biostimulants and performs marketing and web development tasks. She is experienced in regulatory procedures, environmental modelling, risk analyses, evaluation of ecotoxicology and environmental fate studies, dossier preparations and post-submission activities on national and European level. Prior to joining Linge Agroconsultancy she did research on drought tolerance mechanisms in plants at the University of Bonn and worked in project management and marketing at various companies and institutions. Verena speaks German as mother tongue and is fluent in English and has working knowledge of French and Dutch.

ir. L. Feher (Lisette)

Registration specialist

+31-(0)481-745049


Lisette Fehér has professional experience in regulatory affairs and consultancy. She holds an MSc in Crop Sciences. She carries out projects on registration and approval of plant protection products for both government and trade and industry. She has knowledge on environmental modelling, risk analyses, evaluation of Ecotoxicology and Environmental Fate studies, dossier preparations and post-submission activities on national and European level. Lisette speaks Dutch as mother tongue and is fluent in English.

K.P. Hendriks MSc (Koen)

Registration specialist

+31-(0)481-745040


Koen Hendriks holds an MSc in Biology and has over 8 years of professional experience in regulatory affairs and consultancy. He is experienced in regulatory procedures, environmental modelling, risk analyses, evaluation of ecotoxicology studies, dossier preparations and post-submission activities on national and European level. He has been seconded several times as temporary scientific assessor at the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands for the aspects Ecotoxicology and Efficacy. Prior to working at Linge Agroconsultancy, he was research employee at a Dutch research organisation specialised in crop protection in agriculture and horticulture that performs Residue and Efficacy studies in various crops. Koen speaks Dutch as mother tongue, is fluent in English, and has working knowledge of French and German.

dr. R.W. Kolnaar (Rogier)

Registration manager

+31-(0)481-745041


Rogier Kolnaar is a senior consultant and expert with more than 15 years of professional experience in regulatory affairs and over 10 years in consultancy. He holds an MSc in Crop Protection and PhD in Agricultural Sciences. Rogier coordinated regulatory projects of chemical and microbial plant protection products and their active substances (including low risk) for more than 30 companies. He is experienced in regulatory procedures, Phys-Chem properties, Classification, risk analyses, MRLs, Ecotoxicology, dossier preparations and post-submission activities on national and European level. He has been seconded at the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands as evaluator plant protection products for aspects Ecotoxicology and Residues and has been seconded as temporary project leader of plant protection products and biocides. Prior to working at Linge Agroconsultancy, he was registration officer for 5 years at a Dutch company that develops and produces biological control products. Rogier speaks Dutch as mother tongue, is fluent in English, proficient in German and has working knowledge of French and Spanish.

dr. J. Krook (Janhendrik)

Registration specialist

+31-(0)481-745043


Janhendrik Krook has been graduated as MSc in biology and holds a PhD in Plant Physiology/Biochemistry. He has 12 years professional experience as a risk assessor at the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands, where he was involved in Residue / MRL evaluations, and Consumer health risk assessment (EU active substance peer review program). He has experience in pesticide registration procedures for 6 years at Linge Agroconsultancy and was acting in secondment in registration activities at plant protection industries and in training of foreign governmental organizations in Europe, Africa and Asia. He is seconded at the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands as evaluator Residues of plant protection products and active substances. Janhendrik speaks Dutch as mother tongue, is fluent in English and has working knowledge of German and French.

A.C.M. Reulink-Hermsen MSc (Annicka)

Registration specialist

+31-(0)481-745044


Annicka Reulink has over 2 years of professional experience in regulatory affairs and consultancy. She holds an MSc in Environmental Sciences (specialisation: Human and Environmental risk assessment). She carries out projects on registration and approval of plant protection products and active substances for both government and trade and industry. She has knowledge on environmental modelling, risk analyses, evaluation of Ecotoxicology and Environmental Fate studies, Phys-Chem properties, Residues, dossier preparations and post-submission activities on national and European level. Annicka speaks Dutch as mother tongue and is fluent in English.

ir. W.M. Waalkens (Waalke)

Senior advisor

+31-(0)481-745045


Waalke Waalkens is a senior consultant and expert with over 20 years of professional experience in crop protection. He holds an MSc in Crop Protection. His main expertise is Efficacy on national and European level. He performs evaluations as a scientific assessor Efficacy for the Board for the Authorisation of Plant Protection Products and Biocides (Ctgb) in the Netherlands. He is an expert on writing and evaluating Biological Assessment Dossiers (BAD), and dRR efficacy for both government and trade and industry. Prior to working at Linge Agroconsultancy, he worked as a Technical Manager, responsible for efficacy and residue trials. Waalke speaks Dutch as mother tongue and is fluent in English.