Philippe Reynaud

Agence Nationale de Sécurité Sanitaire de l'Alimentation, de l'Environnement et du Travail | ANSES · ANSES Plant Health Laboratory

Thrips (Order Thysanoptera) are found worldwide and include almost 6000 species. Several of them are notorious for causing extensive crop damage (by feeding on leaf tissue or by vectoring viral disease). Their small size (usually less than 2 millimeters) and cryptic habits have facilited invasions and establishment in Europe in the wild or in green...

The Aeolothripidae genus Franklinothrips Back is redefined with a key provided to the 14 species recognised worldwide, of which F. brunneicornis from New Caledonia and F. strasseni from Nepal are described as new. Most of the species appear to be bisexual and localised in distribution, but F. vespiformis is usually unisexual and is found in many tr...

An established population of Thrips hawaiiensis (Morgan) (Thysanoptera: Thripidae), a species originating from Asia and the Pacific, is reported for the first time in the Western Palaeartic zone (in the South of France). Notes relating to the current geographical distribution, identification, biology and risk of establishment of this potentially in...

Many distribution models developed to predict the presence/absence of invasive alien species need to be fitted to a training dataset before practical use. The training dataset is characterized by the number of recorded presences/absences and by their geographical locations. The aim of this paper is to study the effect of the training dataset charac...

The invasion of Europe by the western corn rootworm, North America's most destructive corn pest, is ongoing and represents a serious threat to European agriculture. Because this pest was initially introduced in Central Europe, it was believed that subsequent outbreaks in Western Europe originated from this area. Using model-based Bayesian analyses...

Currently, one of the most relevant demands in seed production, storage and commercialisation is the identification of efficient methods for detecting insect infestation in seeds. The consumption of seed tissues by insects causes serious damage to physical, physiological and health attributes of seed quality. Metabolic activity of insects in seed l...

The green cone-headed planthopper Acanalonia conica (Say, 1830) is a Neartic species recently detected in Italy, Switzerland, Romania, Slovenia and Austria. We here report its first capture in France based on a specimen found in Auzeville-Tolosanne (Haute-Garonne) and one observation uploaded on the online biodiversity platform iNaturalist.

In Europe, the meadow spittlebug Philaenus spumarius is the main vector of the quarantine bacterium Xylella fastidiosa. So far detection and identification of X. fastidiosa has more often been performed from plant matrices than insects, mainly using a real‐time PCR and Multilocus Sequence Typing approach. Detection of X. fastidiosa in its insect ve...

The genus Thrips comprises 296 species (ThripsWiki 2019) and is the largest of all Terebrantian genera. The only other Thysanopteran genera comparable in size are the phlaeothripids Haplothrips and Liothrips. Species of Thrips can be found in flowers and on leaves of a wide variety of plants from grasses to trees. Most of them are beneficial pollin...

Résumé.– Thrips setosusMoulton, 1928, une espèce allochtone de Thripidae, a été signalé pour la première fois de France et des Pays-Bas sur Hydrangea sp. en 2014. Depuis, il a été découvert dans d’autres pays européens et sur d’autres plantes-hôtes. Ce thrips est originaire d’Asie orientale où il est considéré comme un ravageur, notamment en raiso...

Molecular tools to characterize greenhouses’s diversity in ornamentals crops Thrips are among the most important pests in greenhouses worldwide because of recurrent outbreaks of both native and invading species. Yet, their biodiversity, distribution and ecology remain still poorly documented, probably because of their small size, the high morpholog...

En Afrique, en Europe du Sud et au Moyen-Orient, le genre Spodoptera était jusqu’à présent représenté par huit espèces, dont trois d’importance économique : S. exempta, S. exigua et S. littoralis (Brown, 1975). S. frugiperda s’ajoute à ce trio de ravageurs.

The worldwide trade of agricultural products and high levels of disturbance and fertilisation make arable lands particularly vulnerable to biological invasions. Clearing for the development of arable land has been an unprecedented event that created a new and more homogeneous habitat which allowed many species to spread to become (sub)cosmopolitan...

‪Contexte - Depuis 2016, la noctuelle Spodoptera frugiperda, d'origine américaine, s'est établie en Afrique subsaharienne. Sa grande nuisibilité est constatée notamment sur le maïs. Présentation - Ses caractéristiques sont détaillées : morphologie et critères de différenciation d'avec les trois autres principales espèces de Spodoptera, biologie ave...

Following the entry into force of French Decree 2012-140, published on 30 January 2012, concerning authorization of the entry to French territory and introduction into the environment of non-indigenous macro-organisms (beneficial, including pollinators and biological control agents) useful for crops, the French Agency for Food, Environmental and Oc...

Thrips are among the most important pests in greenhouses worldwide because of recurrent outbreaks of both native and invading species. Yet, the biodiversity, distribution and ecology of thrips taxa are still poorly documented. Reasons accounting for this situation are probably their small size, the high morphological similarity among taxa and their...

This chapter provides guidance on mapping risks posed by invasive alien species to support pest risk analysis (PRA), the process required to justify phytosanitary measures. Because pest risk mapping can be challenging and resource-intensive, the situations in which risk maps are particularly useful are highlighted. The procedures described focus on...

Within the ANSES (French Agency for Food, Environmental and occupational health & safety), the Plant Health Laboratory is the national reference laboratory for entomology and invasive plants. It is involved in the surveillance of regulated pests, outbreaks or emergencies that may affect the territory. The information provided to stakeholders over t...

Thrips are among the most important pests in greenhouses worldwide because of recurrent outbreaks of both native and invading species. Yet, the biodiversity, distribution and ecology of thrips taxa are still poorly documented. Reasons accounting for this situation are probably their small size, the high morphological similarity among taxa and their...

Thrips are major pests on rose crops. Monitoring and dispersal of thrips populations is of significance for the development of effective integrated pest management programs. This study was conducted to survey thrips species and their population densities occurring inside and outside rose greenhouse from year 2006-2009 in France. Among 1,850 samples...

Pest Risk Analyses (PRAs) are conducted worldwide to decide whether and how exotic plant pests should be regulated to prevent invasion. There is an increasing demand for science-based risk mapping in PRA. Spread plays a key role in determining the potential distribution of pests, but there is no suitable spread modelling tool available for pest ris...

Tutorial on the generic spread models. (DOC)

Case studies. (DOC)

EFSA guidance regarding pest risk assessment previously identified limitations within a generic qualitative risk assessment scheme published to support EU plant health decision making. In seeking to develop methods to overcome the limitations, we report results of a multiphase project where five test risk assessment methods were applied to Anoploph...

Microcephalothrips abdominalis (Crawford) (Thysanoptera: Thripidae), a species of neotropical origin, has been found for the first time in France (Alpes - Maritimes, Sophia - Antipolis) in 2008. Information is provided on its identification, geographical distribution and on the damage that it can cause. Potential risk linked to this species is disc...

Thrips are widespread pests in ornamental greenhouses in France. The survey of thrips populations in greenhouses on rose and gerbera crops in two sites in Southern France, at the INRA Research Center (Sophia-Antipolis, France) and at the CREAT Experimental Center (Nice, France), were performed from 2006 to 2009. During that period, more than 6000 t...

Many regulated and exotic plant pests threaten crops in the European Union. While inspections and surveys using diagnostic tests are useful to mitigate the risk of their introduction, prevent their permanent establishment and limit their subsequent spread , resources are dramatically limited to cover all regulated pests. Therefore detection efforts...

Assessing the likelihood and magnitude of spread is one of the cornerstones of pest risk analysis (PRA), and is usually based on qualitative expert judgment. This paper proposes a suite of simple ecological models to support risk assessors who also wish to estimate the rate and extent of spread, e.g. when modelling the dynamics of invasion and the...

A CLIMEX model for Diabrotica virgifera virgifera (western corn rootworm), was initially fitted to the known range of this pest in the USA and Mexico under rain-fed agricultural situations.When this model was projected into Europe, it became clear that soil moisture thresholds for irrigation differed markedly between Central Europe and the USA. A s...

The assessment of the suitability of the climate for pest establishment is an important part of pest risk analysis (PRA). This paper describes the work undertaken by the EU 7th Framework project PRA-TIQUE (Enhancements of Pest Risk Analysis Techniques) to develop guidance for this component of PRA. Firstly, there is a guide to rating the suitabilit...

This paper describes a decision-support scheme (DSS) for mapping the area where economically important loss is likely to occur (the endangered area). It has been designed by the PRATIQUE project to help pest risk analysts address the numerous risk mapping challenges and decide on the most suitable methods to follow. The introduction to the DSS indi...

The expert unit on biological risks at the ANSES Plant Health Laboratory (LSV) has been partnering INRA - the French National Institute for Agricultural Research - since 2011 for the European PLANTFOODSEC project supported by the European Union under its Seventh Framework Programme (http://www.plantfoodsec.eu/). This project addresses the issue of...

EFSA guidance regarding pest risk assessment previously identified limitations within a generic qualitative risk assessment scheme published to support EU plant health decision making. In seeking to develop methods to overcome the limitations, we report results of a multiphase project where five test risk assessment methods were applied to Anoplop...

Thrips are widespread pests in ornamental greenhouses in France. The survey of thrips populations in greenhouses on rose and gerbera crops in two sites in Southern France, at the INRA Research Center (Sophia-Antipolis, France) and at the CREAT Experimental Center (Nice, France), were performed from 2006 to 2009. During that period, more than 6000 t...

Microcephalothrips abdominalis (Crawford) (Thysanoptera: Thripidae), a species of neotropical origin, has been found for the first time in France (Alpes - Maritimes, Sophia - Antipolis) in 2008. Information is provided on its identification, geographical distribution and on the damage that it can cause. Potential risk linked to this species is disc...

PROJECT OVERVIEW: PRATIQUE is an EC-funded 7th Framework research project designed to address the major challenges for pest risk analysis (PRA) in Europe. It has three principal objectives: (i) to assemble the datasets required to construct PRAs valid for the whole of the EU, (ii) to conduct multi-disciplinary research that enhances the techniques...

In late 2009, a European Food Safety Authority (EFSA)-funded project (Prima phacie) began work to review and test methodologies for conducting pest risk assessment by means of case studies on three phytoplasmas (Candidatus Phytoplasma mali, Ca. P. prunorum, Ca. P. pyri); two bacteria (Acidovorax avenae subsp. citrulli, Xanthomonas citri [=X. axonop...

Thrips have become major pests in rose greenhouses of southern France and Integrated Pest Management (IPM) programs do not provide reliable control in summer. This study was undertaken in 2006, on 2 three rose cultivars ('Aubade', 'Miss Paris' and 'Sayonara'), in two 130 M greenhouses at the CREAT experimental station (Nice, Alpes Maritimes, France...

Thrips have become major pests in rose greenhouses of southern France and Integrated Pest Management (IPM) programs do not provide reliable control in summer. This study was undertaken in 2006, on three rose cultivars ('Aubade', 'Miss Paris' and 'Sayonara'), in two 130 m 2 greenhouses at the CREAT experimental station (Nice, Alpes Maritimes, France...

Thrips have become major pests in rose greenhouses of southern France and Integrated Pest Management (IPM) programs do not provide reliable control in summer. This study was undertaken in 2006, on 2 three rose cultivars ('Aubade', 'Miss Paris' and 'Sayonara'), in two 130 M greenhouses at the CREAT experimental station (Nice, Alpes Maritimes, France...

Diabrotica virgifera, insecte de quarantaine pour l'Union Européenne, fait l'objet d'une surveillance officielle en France depuis 1999. Les principaux résultats du suivi 2004 sont fournis ainsi qu'une carte de répartition européenne. Un nouveau foyer est découvert en 2004 en région lle-de-France, près de la commune de Pierrelaye (95). Un aperçu de...

This book provides a comprehensive review of the current knowledge of Western corn rootworm, Diabrotica virgifera virgifera , and how it might be managed both in North America and in Europe. Comparisons are drawn between plant protection techniques currently applied in North America and their potential application in Europe. Cultural, biotechnical...

This standard describes a diagnostic protocol for Scirtothrips aurantii , Scirtothrips citri and Scirtothrips dorsalis.

Mound, Laurence A., Reynaud, Philippe (2005): Franklinothrips; a pantropical Thysanoptera genus of ant­mimicking obligate predators (Aeolothripidae). Zootaxa 864: 1-16, DOI: 10.5281/zenodo.170856

In 1998-1999 a detection survey on the presence of the western corn rootworm (WCR) Diabrotica virgifera virgifera LeConte was conducted in Austria, Germany, France, Slovakia and Slovenia in the countries, the primary monitoring tool was the Hungarian pheromone trap. According to the results, no WCR adults were detected in these countries. It is ass...

Cameraria ohridella (Lepidoptera : Gracillariidae) is a new pest of the horse chestnut trees in France. The article gives a breakdown of its presence in Europe and a breakdown by department in France, where currently at least 15 of these have reported outbreaks, with forecasts suggesting a likely spread to the vast majority of the country. A descri...

First citation in Europe of Neohydatothrips samayunkur Kudo Thysanoptera, Thripidae on Tagetes sp. A short description of the species and pictures are given.

O. Iavaterae is recorded as overwintering in large number on bark of tree host and disperses in spring for feeding and reproduce on herbaceous hosts belonging to Malvaceae. According to other Author's, this insect can complete its biological cycle on tree hosts. The French observations don't allow to conclude for one or the other supposition. No ec...

Details on identification and biology of greenhouse whiteflies are given. Pictures on microscopic morphological caracteristics of puparium and adults are shown.

A risk analysis was carried out for Diabrotica virgifera virgifera in relation to climatic and agronomic conditions prevailing in France. In addition to the 1.7 million ha of maize grown in France, at least 7 species of wild graminaceous plants are suitable for development of this pest. Comparison of climatic conditions (rainfall and temperature) i...

The aim of this study was to evaluate the incidence on spiders in wheat fields of 3 active insecticide ingredients (deltamethrin, dimethoate and phosalone) used aginst the English grain aphid (Sitobion avenae) at flowering stage. One hundred and ten species have been listed. Incidence has been studied by comparison of numbers of captures between di...

Ce travail fait le point sur l'incidence de 3 matières actives insecticides (deltaméthrine, diméthoate et phosalone) sur les araignées des champs de blé dans le cas de leur utilisation en traitement de végétation contre le puceron de épis (Sitobion avenae) à l'épiaison. L'inventaire des araignées comporte 110 espèces. L'action des produits est étud...