A5031044561- Forest Insect Ecology and Management
- Biological Control of Invasive Species
- Insect-Plant Interactions and Control
- Plant and animal studies
- Ecology and Vegetation Dynamics Studies
- Allergic Rhinitis and Sensitization
- Insect behavior and control techniques
- Allelopathy and phytotoxic interactions
- Plant Parasitism and Resistance
- Weed Control and Herbicide Applications
- Animal Virus Infections Studies
- Plant Physiology and Cultivation Studies
- Botany and Plant Ecology Studies
- Plant Virus Research Studies
- Nematode management and characterization studies
- Insect Pheromone Research and Control
- Animal Behavior and Reproduction
- Animal Ecology and Behavior Studies
- Animal Disease Management and Epidemiology
- Entomological Studies and Ecology
- Plant Pathogens and Fungal Diseases
- Vector-Borne Animal Diseases
- Insect and Arachnid Ecology and Behavior
- Plant and fungal interactions
- Species Distribution and Climate Change
Leiden University
2008-2024
Koppert (Netherlands)
2022-2023
University of Fribourg
2014-2022
Wageningen University & Research
2012-2017
Abstract Invasive alien species (IAS) can substantially affect ecosystem services and human well-being. However, quantitative assessments of their impact on health are rare the benefits implementing IAS management likely to be underestimated. Here we report effects allergenic plant Ambrosia artemisiifolia public in Europe potential accidentally introduced leaf beetle Ophraella communa number patients healthcare costs. We find that, prior establishment O. , some 13.5 million persons suffered...
Summary We report the occurrence of North American ragweed leaf beetle Ophraella communa in Europe. During our surveys to monitor populations invasive alien plant Ambrosia artemisiifolia Europe, we found south Alps, more than 130 sites southern Switzerland (Ticino) and northern Italy (Lombardia, Piemonte Emilia‐Romagna). At where O. was present, up 100% plants were attacked with damage levels high enough completely defoliate prevent flowering seed set most plants. That its first year...
Invasive species are a key driver of the global biodiversity crisis, but drivers invasiveness, including role pathogens, remain debated. We investigated genomic basis invasiveness in Ambrosia artemisiifolia (common ragweed), introduced to Europe late 19th century, by resequencing 655 ragweed genomes, 308 herbarium specimens collected up 190 years ago. In invasive European populations, we found selection signatures defense genes and lower prevalence disease-inducing plant pathogens. Together...
Abstract Biological control using natural antagonists has been a most successful management tool against alien invasive plants that threaten biodiversity. The selection of candidate agents remains critical step in biocontrol program before more elaborate and time‐consuming experiments are conducted. Here, we propose biogeographic approach to identify candidates combinations potentially cover large range the invader. We studied Ambrosia artemisiifolia (common ragweed), native North America (...
Roadsides are an important habitat for invasive common ragweed, Ambrosiaartemisiifolia L., by facilitating seed dispersal. Reducing the size of roadside populations is therefore essential confining this highly allergenic species. Here, we aim to determine cost-effectiveness mowing regimes varying in frequency and timing, analysing population-level effects underlying demographic processes. We constructed population models A.artemisiifolia parameterised data four unmanaged reference across...
Abstract Augmentative biological control by predaceous ladybird beetles can be improved using flightless morphs, which have longer residence times on the host plants. The two‐spot beetle, Adalia bipunctata (L.) (Coleoptera: Coccinellidae), is used for of aphids in greenhouses and urban trees. Flightlessness due to truncated wings occurs at very low frequency some natural populations A. . Pure‐breeding strains this 'wingless' genotype easily obtained laboratory. Such not been commercialized...
successfully been used on several continents in the last 150 years
Aphalara itadori is a biological control agent of the invasive Asian knotweeds Reynoutria japonica, sachalinensis and their hybrid × bohemica, which emerged across different areas introduced range, including Europe, North America Oceania. The performance A. on these three target plants differs between geographically distant psyllid populations. A petition to release population this freshly collected in Murakami (Japan) species Netherlands was approved 2020. In order optimize biocontrol...
Biological control (BC) of invasive alien plants (IAP) can be an effective environmental management approach. It has only very recently been adopted in Europe and is underutilized compared to other continents where this method successfully implemented for over a century. This sharp contrast the BC invertebrate pests, which taken up widely within Europe. suggested that related risk-adverse attitude Europeans towards weed BC. Scientific public perception have major influence on policy actions....
Dry bulb mite (DBM), Aceria tulipae, is an economically important with a worldwide distribution and broad host range. As generalist, it the most eriophyoid attacking bulbous plants such as garlic, onion tulip. To date, DBM has been recorded on belonging to families Liliaceae, Amaryllidaceae, Melanthiaceae Asparagaceae. However, precise understanding of range lacking largely based casual records mites plants, some which may include accidental hosts. Moreover, possible existence cryptic...
Ragweed allergy is one of the primary causes seasonal allergies in Europe and its prevalence expected to rise. The leaf beetle Ophraella communa, recently accidentally established N-Italy S-Switzerland, represents a promising approach control ragweed, but negative side effects should be excluded before use. Since biotic abiotic stresses are known influence allergenicity pollen, we set out assess effect sub-lethal defoliation by O. communa on quantity quality ragweed pollen. Seventeen sister...
Abstract Aims The spread of invasive weeds threatens biodiversity and stability ecosystems. Jacobaea vulgaris is an weed in some countries outbreak species its native European range. Although biological control using specialist herbivores available, controlling with soil microorganisms remains far less explored. Methods Twenty bacteria strains isolated from roots J. were used to examine bacterial effects on seed germination, root morphology early plant growth. Moreover, we tested direct the...
SUMMARY Many taxa of winged insects have independently lost the ability to fly and often possess reduced wings. Species exhibiting natural variation in wing morphology provide opportunities investigate genetics developmental processes underlying evolution alternative morphs. Although many dimorphic species beetles are known, mechanisms not well understood this insect order. Here, we examine development wild type wingless morphs two‐spot ladybird beetle, Adalia bipunctata . We show that both...
Common ragweed ( Ambrosia artemisiifolia L.) is an annual Asteraceae species native to North America which highly invasive across Europe and has harmful impacts, especially on human health agriculture. Besides its wide ecological range, particularly high reproductive power by seeds promoting spread various habitats regions. To prevent further control the plant, European Commission funded projects COST-Actions involving scientists from all over Europe. A joint trial was set up comprising...
One of the biggest challenges in classical biological control invasive weeds is predicting likelihood success. Ambrosia artemisiifolia , a North American plant species that has become Europe, causes economic losses due to health problems resulting from its huge amount highly allergenic pollen and as weed agricultural crops high seed densities. Here we assessed whether output annual A. (at end season) related in-season abundance of, or damage by, accidentally introduced agent Ophraella...
Winglessness in the two-spot ladybird beetle Adalia bipunctata (L.) is determined by a single locus with wingless allele recessive to winged wildtype allele.The expression of trait highly variable, individuals missing variable part elytra and flight wings; wings appear be truncated rather than miniature form.The degree winglessness partly genetically.Here we report on phenotypic plasticity winglessness.The environmental effect elytron length relative maximal phenotypes was studied rearing...