115 search results for “pesticides” in the Public website
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Marker assisted breeding for thrips resistance in tomato
Which plant leaf characteristics are involved in thrips resistance in tomato?
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EPCEM 2001: Differences in the authorization process of GMOs in the EU and the USA
This report investigates the different approaches in the authorization process of GMOs for commercial use in the European Union and the United States of America. Three main aspects are considered and analyzed as potential causes of differences in the authorization process of GMOs for commercial use.…
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Soils2Guts
Steering soil microbiomes for better crop quality: the holy grail to improve human health?
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Measuring water life
Human activity, such as pollution, may disturb the balance of living water systems, which has consequences for biodiversity, but also for other functions such as water purification. Leiden University maps living water systems using the most advanced technologies.
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Nature in farmland
The Netherlands is not particularly rich in ‘wild nature’. Comparatively, what we have is a lot of intensively used agricultural land. This means that from nature’s perspective there much to be gained by combining the ‘nature’ and ‘agriculture’ functions. Not an easy task in such a densely populated…
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Institute of Environmental Sciences
Natural resources are becoming increasingly scarce. If we want to maintain our current standard of living, we will need inventive solutions. The researchers at the Institute of Environmental Sciences (CML) share their thoughts on how to achieve a fully circular economy in which as little use as possible…
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Design for the Future: Wicked Environmental Problems in Sustainability and Health
How do we approach education that facilitates creative confidence for students that leads to innovative solutions to society’s present day and future sustainability challenges? This education research project tackles a sustainability dilemma faced by households in everyday life viz.
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Metals in LCIA
A critical look at the impact assessment modelling of metals in Life Cycle Impact Assessment and improvement options.
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Research projects launched into biodiversity in food and horticulture production
Two Leiden research projects that focus on increasing the biodiversity of Dutch production systems for food and ornamental horticulture have started thanks to funding from the Dutch Research Council's KIC research programme.
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Effect of insecticides on damselflies greater than expected
The latest research from the Leiden outdoor laboratory ‘Living Lab’ shows that the insecticide thiacloprid strongly influences even the most common and robust dragonfly species in the Netherlands. The study was published in the Journal of Applied Ecology.
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IBL-research interview: Kirsten Leiss
Kirsten Leiss, at the IBL since 2001, is developing new ways of crop protection in order to decrease the use of pesticides: As a model she uses the thrip, a tiny insect which causes economic losses worldwide by silver- and growth damage and virus transmission to vegetables, fruits and flowers.
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Reports
Overview of the CML reports
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New insights in bee decline
Two scientific papers in Science deliver new pieces of the puzzle for the reasons of bee decline. Professor Koos Biesmeijer comment on this research in articles in the Dutch newspapers Volkskrant and NRC.
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Does knowledge of environmental performance change farmer's behaviour?
Does knowledge of environmental performance change farmer's behaviour?
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Increasing Biodiversity at Home
As we are working very hard to make our University more green, it is of upmost importance that you join us in our battle and start increasing the local biodiversity from your own house! Every bit will help, it is beneficial for you own mental health and most importantly it is fun! We have created this…
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Invaluable bees and nature’s other services
We depend on nature for so many things: from clean water, wood and food to carbon absorption, water purification and coastal protection, as well as for relaxation, inspiration and identity. Nevertheless, our modern world putting increasing pressure on these ecosystem services. Leiden researchers investigate…
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PhD position in 'Effects of Pollution at the Ecosystem Level'
Science, Institute of Environmental Sciences (CML)
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A 36-ditch effort
An Institute of Environmental Sciences, ambitious goals for energy, water and CO2 emissions. Leiden University plans to take the lead on sustainability - in research, teaching and raising awareness.
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From field work by boat to excel sheets: how the corona virus is impacting education
Professor of Ecotoxicology Martina Vijver had planned an eight-week field work course for her students, but the corona virus threw a spanner in the works and Vijver had to come up with a new plan at short notice. ‘Without the help of my own network and that of my colleagues this would have been very…
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Excessive waste, harmful foods and too little greenery: these students worked on a solution
For months, students dedicated themselves to a more sustainable world alongside their studies, as part of the LDE Sustainability Honours Programme. What solutions did they come up with for the challenges posed by organisations like Naturalis and ClimateMatters?
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Biodiversity
In Leiden University's Vision on Sustainability 2030, biodiversity (biological diversity) is an important focus in its teaching and research and on its campuses.
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Two Leiden professors appointed KNAW members
The Royal Netherlands Academy of Arts and Sciences (KNAW) announced on 25 April that it has appointed 18 new members. These include Leiden professors Andrew Webb and Jos Raaijmakers.
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Human disturbance of ecosystems leads to increase in disease-transmitting mosquitoes
The changes that humans are making to the landscape are beneficial for mosquitoes that spread diseases such as Zika, chikungunya and dengue. This is what biologist Maarten Schrama and his colleagues write in the journal Nature Scientific Reports. ‘If we know in which living environments mosquitoes thrive…
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New STW-grant for study on crop protection
Dr. Kirsten Leiss and Prof. Peter Klinkhamer received 900.000 euro’s from “Stichting Toegepaste Wetenschappen (STW)” and the company “Rijk Zwaan” to develop plants that are resistant to thrips, a major agricultural pest all over the world.
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Support the Living Lab for research on hazardous compounds in 36 ditches
Researchers from the Institute of Environmental Sciences of Leiden University started crowdfunding to raise 15.000 euro to build a laboratory in nature: The Living Lab. This is necessary to test the effects of chemical compounds in a natural situation.
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Martina Vijver new Scientific Director of the CML institute
As of 1 September, Martina Vijver is the new Scientific Director of the Institute of Environmental Sciences. She succeeds Arnold Tukker, who led the institute since 2013 and served the maximum term of two times four years. Vijver has been appointed for a period of four years.
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36 ditches as living lab for water quality
On Monday 14 November, the first spadeful of earth was dug for the construction of the Living Lab, an experimental test site to study living organisms in freshwater. A total of 36 ditches will be dug out to create a natural environment where researchers can study the effects of chemical compounds from…
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Sticky insects: plants protected with biological glue
Drained leaves and plants stripped bare. Insects can completely destroy crops. Soon, these situations may be behind us, with the new pesticide developed by Leiden and Wageningen researchers. With their plant-based ‘insect glue’, insects are incapacitated.
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Sustainable futures
How can we organise society so as to keep our planet habitable for us and for all other life forms around us? To answer this question, Leiden researchers collaborate across disciplines, from biology to data science, and from environmental economy to archaeology.
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'Lower emissions and successful farming can go hand in hand'
Circular agriculture and more nature are important to reduce harmful emissions and to give a new impetus to biodiversity. But is that compatible with the Netherlands' position as an important exporter of food products? Professor of Conservation Biology Geert de Snoo believes it is, at least provided…
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Peter van Bodegom on sustainable horticulture
Dutch greenhouse horticulture is a world leader when it comes to innovative capacity and sustainability, but ‘the challenges are great in terms of energy, water, environment and biodiversity,’ says Peter van Bodegom, coordinator of AgriFood at the Centre for Sustainability of the Leiden, Delft, Erasmus…
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Publications
Recent publications
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Queen Máxima opens renovated tropical greenhouse at Leiden's Hortus
On Wednesday 4 September, Queen Máxima opened the renovated tropical greenhouse complex of the Leiden Hortus Botanicus, an event that attracted wide public interest. Thanks to this renovation, the greenhouses are even better equipped for scientific research.
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Large-scale European project identifies risks of nanoparticles
The large-scale project NanoInformatics will assess the risks associated with nanoparticles. The project will be funded by the EU with 6.8 million euros and was launched at the beginning of this year. Three scientists from Leiden are involved. 'For the first time, this project combines the various experts…
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Wanted: bacteria that allow plants to flourish
Plants love favourable microbes such as bacteria and fungi: they grow better and become healthier. Jos Raaijmakers, Professor of Microbial Ecology, is in search of the right microbes to be used in agriculture. Inaugural lecture 13 November.
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Common insecticide linked to extreme decline in freshwater insects
The widely used pesticide thiacloprid can cause a large-scale decline in freshwater insects. This was discovered by researchers from the Living Lab in Leiden. For three months they counted the flying insects in the 36 ditches of the lab. Their research appeared in PNAS.
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Safety testing of chemicals without laboratory animals
Testing chemical substances without using animals. It seems a utopia, but a European team is going to develop a way to make this a reality. The RISK-HUNT3R project, led by Leiden professor Bob van de Water, received 23 million euros from the European Commission for this purpose. The project was launched…
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Martina Vijver wins NWO Athena Award for outstanding female researchers
‘She is an example to young researchers who are beginning to find their career path’, wrote the jury of the NWO Athena Award about Professor of Ecotoxicology Martina Vijver. It was the main reason for presenting her with one of the two awards for outstanding female scientists. Both Vijver and Nijmegen…
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Gravitation Grant: more than twenty million for sustainable crops
The project MiCRop receives 20.3 million euros from the Gravitation programme of the Dutch Research Council (NWO). MiCRop will unravel the microbial community around crops. This knowledge will help to develop more sustainable crops that require fewer fertilizers and pesticides. Leiden professors Jos…
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My favourite spot: one for the coffee lovers
'This one is really for the coffee lovers out there, but tea drinkers and co. need not tune out because this spot has got more to offer than just coffee.' Rachel Quennell, student of International Studies in The Hague, is a mine of information for lovers of good coffee.
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Bacteria inside plant roots battle fungal disease
Two bacterial species team up inside the plant root system to rescue their host from fungal infection. This was discovered by a team of microbiologists and bioinformaticians from the Netherlands Institute of Ecology, Wageningen University, and the Institute of Biology Leiden. They also identified the…
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Towards a liveable future
Humans have influenced nature since as early as the Ice Age, and over the past century man’s impact has become even greater with our many new technologies and a growing world population. Leiden researchers study this impact and how we can keep it within reasonable limits so that nature can be preserved.…
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Small but not harmless
To what extent do nanoparticles accumulate in plants and animals, and what properties of the particles play a part in this? Willie Peijnenburg, professor of Environmental toxicology and biodiversity was awarded a Marie Curie grant to conduct research on the environmental effects of nanoparticles.
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What makes us ill?
Genes predict whether you have a propensity for an illness but environmental factors often have the last word: nutrition, air pollution, lifestyle, stress. The exposome as both culprit and chance. Large-scale research is being carried out into this at Leiden. Thomas Hankemeier, Professor of Analytical…
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Dissertations
Overview of all dissertations published by PhD candidates from CML.
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VENI grant for Dovilė Rimkutė: Reputation is key for risk regulation
Dovilė Rimkutė, Assistant Professor at the Institute of Public Administration in The Hague, received the prestigious VENI grant for her research on risk regulation. 'We expect science to be the core basis of risk regulators’ decisions,' says Rimkutė, 'but at times threats to the regulators’ reputation…
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Netherlands Veganland: a good idea? These are the outcomes of the thought experiment!
Less meat and dairy means more space for nature, leisure, climate, biodiversity, more justice, and it's good news for the economy. That's according to the thought experiment conducted by Strootman Landscape Architects and Leiden environmental scientists. They presented their findings on 11 April.
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‘We are destroying our own planet' (and Latin America pays the price)
The whole world gets raw materials from Latin America, but at the expense of nature. Håvar Solheim researches the role of organised crime in this environmental crime and Soledad Valdivia researches sustainable urban initiatives in Latin America. What do these university lecturers think the future of…
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New funding for the development of a metabolomics resistance test at the IBL
Researchers from the Plant Ecology and Phytochemistry group at the Institute of Biology Leiden (IBL) received an STW (Stichting Technologische Wetenschappen) grant for applied studies in plant herbivore resistance with potential for a novel resistance test.
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Dutch National Research Agenda supports five ‘Leiden’ public-private projects
The Dutch National Research Agenda announced today that it will provide 17 research projects with a total of 61 million euros in funding. Researchers from Leiden University or the Leiden University Medical Center are involved in five of the projects. All of the projects are interdisciplinary partnerships…