Rachid Hamidi

ANPN

The invasive red palm weevil, Rhynchophorus ferrugineus (Olivier) (Coleoptera: Dryophthoridae) has become the main pest of palms. Because of the cryptic habits of the adult, little is known about the precise movements on palms and the actual dispersal capability in a population. Such data would help to improve risk assessment and management. Miniat...

In ants, dispersal strategies and morphology of female sexuals are generally linked to the mode of colony founding. In species using long-range dispersal tactics, queen/worker dimorphism is generally high and young queens are able to initiate new colonies by themselves, using their metabolic reserves. By contrast, in species using short-range dispe...

The nut weevil, Curculio nucum (Linnaeus, 1758), is the main pest in hazelnut orchards (Corylus avellana L.). Semiochemicals are interesting bio control tools that could be used to manipulate the pest behaviour and to control pest populations. The study of the sensorial equipment of the insect antennae provides information on the importance of olfa...

Paysandisia archon (Lepidoptera: Castniidae) is a pest on palms in Europe. The moth was introduced about twenty years ago, when infected palms were imported from South America. In P. archon, little is known about mate location and the putative activity of the male-produced sex pheromone. The aim of this study was, therefore, to study olfactory resp...

The aims of the study were to understand the physiological and phenological relationship between Bruchus rufimanus and Vicia faba in the perspective of IPM strategies. V. faba, an important food resource for humans and livestock is the main host plant of B. rufimanus. Adults feed on the pollen, females lay eggs on pods, and larvae develop into the...

We report the first detection of Trissolcus japonicus in southwestern France. A total of almost 3000 sentinel and 700 field-laid egg masses of Halyomorpha halys were exposed or collected in the administrative region of Nouvelle-Aquitaine in 2022 and 2023. A total of 12 and 44 specimens of T. japonicus emerged from one and two egg masses in 2022 and...

The plant material: a tool to manage water resources. Example of the VEGET'eau project Optimizing irrigation in asparagus plantations.

Palomena prasina, the green shield bug (GSB), is widely distributed in the Eurosiberian region. In the Southwest of France, it is considered as a serious pest of hazelnuts, its feeding punctures lead to blank hazelnuts and kernel necrosis, causing heavy losses in commercial orchards. To date, no Integrated Pest Management strategy is available to c...

The hazelnut weevil, Curculio nucum (Curculionidae), and the green shield bug (GSB), Palomena prasina (Pentatomidae), are the main indigenous pests of European hazelnut orchards (Corylus avellana). Nymphs and adults of GSB feed by using piercing-sucking mouthparts, while larvae and adults of C. nucum use their mandibles to feed or oviposit on nuts....

Since 2015, the number of hazelnuts damaged by insects in France has increased exponentially. Palomena prasina, Pentatoma rufipes (Hemiptera: Pentatomidae), and Gonocerus acuteangulatus are common insect species on hazel trees. In France, their pest status is unclear, and consequently limited data are available on their impact on French hazelnut cu...

European hazelnut cultivars are grouped by comparing their phenological development to a few reference cultivars such as ‘Barcelona’, ‘Tonda di Giffoni’ and ‘Tonda Gentile delle Langhe’. The cultivars are described as earlier or later than the references for blooming, and harvest time. BBCH scales describe the plant phenological stages according to...

In France, organic hazelnut production is a real challenge. Considering the lack of organic solutions to limit insect pests in orchards, yield and nut quality could be impacted. This trial aims at evaluating: i) tree growth and nut productivity; ii) nut quality; iii) abundance of insect pests; and iv) soil insect biodiversity under organic and conv...

In most ant species, workers have retained functional ovaries, allowing them to potentially lay viable unfertilized eggs that develop into males. Mechanisms (ex.: queen and/or worker policing) have nevertheless evolved to control worker reproduction when the queen is present. In many species with a high degree of polygyny, especially in tramp speci...

CONTEXTE – La punaise diabolique Halyomorpha halys, ou punaise marbrée, originaire d’Asie de l’Est, a été signalée pour la première fois en Suisse en 2004, puis en Italie en 2012 et en France en 2014. Elle s’est rapidement répandue sur le territoire, en particulier dans les régions productrices de fruits et de légumes, où elle représente une menace...

Phytoma: Les punaises sont des insectes hautement polyphages et mobiles, elles peuvent causer des dégâts dans les noiseraies si aucun moyen de gestion n’est mis en place. Face à une lutte chimique de plus en plus complexe, la filière est à la recherche de solutions alternatives. Le projet Replik, financé par la région Nouvelle-Aquitaine, se termine...

Seed protection is a key element in plant survival and plant dispersion. In hazelnuts, shell lignification begins from the tip to the basal scar. Therefore, hardening time is a race between seed survival against environmental stress. While new pests and stochastic weather events are increasing, fundamental shell lignification features are missing i...

Hazelnut is an important food resource for the larvae and adults of the hazelnut weevil, Curculio nucum. While wormy nuts reflect the impact of such weevils at harvest time, little is known about the other types of damage they cause. To establish a comprehensive list of damages, and thereby identify the period of hazelnut vulnerability, male and fe...

To date, distinct codes and phenological scales are currently employed for monitoring the annual life cycle of a hazelnut. These scales works well in specific areas but do not translate well for a broader use. Thus, a universal scale adaptable to all areas will allow standardization of phenological monitoring for hazelnut. Two recently published ar...

CONTEXTE - Détectée en France en 2012, la punaise invasive et polyphage Halyomorpha halys, originaire d’Asie, s’est dispersée sur l’ensemble du territoire. ÉTUDE - Dans le cadre d’un projet France Agrimer portant sur la régulation des punaises pentatomides porté par le groupe Invenio et différents partenaires (Grab, Cvetmo, Koppert, BIK, Inrae), l...

Here we report the first detection of Halyomorpha halys (Stål, 1855) in Bordeaux vineyards. The species is native to Eastern Asia and was introduced to France in 2012. Halyomorpha halys is highly polyphagous and causes significant damage to various crops, including grapevines. From 2018 to 2020, Pentatomidae species were collected in vineyards in t...

Palomena prasina (L.) (Hemiptera: Pentatomidae) and Gonocerus acuteangulatus (Goeze) (Hemiptera: Coreidae) are new pests in French hazel orchards (Corylus avellana L., Corylaceae). Knowing the symptoms in growing hazelnuts resulting from pests feeding on them is important for risk assessment and risk management. Insects were isolated in net sleeves...

A wide range of hazelnut (Corylus avellana) cultivars are produced around the world. Cultivars are often listed by the time of bloom, from early to mid and late season. To date, phenological stages have been recorded using alphanumerical codes, although data analysis is difficult with such codes. This study converted the alphanumerical codes to ful...

A wide range of hazelnut cultivars (Corylus avellana) are produced around the world. Cultivars can be listed depending on the blooming period: from early to mid and late season cultivars. In the southwestern of France, little is known about the relationship between the blooming period and consequently, the dynamic of fruit growth (DFG). DFG is an a...

We report the first detection of Trissolcus mitsukurii in France. More than 1860 sentinel egg masses of Halyomorpha halys (BMSB) were exposed in the field during the 2018–2020 period, and 12 specimens of T. mitsukurii emerged from one egg mass. Their taxonomic identification was confirmed both by morphological and molecular analysis. Trissolcus mit...

Phytoma journal May 2021, 744:28-30 L’étude des médiateurs chimiques intervenant dans le cycle de développement du papillon palmivore doit permettre la mise au point de nouvelles solutions de lutte. Originaire d’Amérique du Sud, Paysandisia archon (Burmeister, 1879) connaît une progression impressionnante dans son aire d’invasion, allant jusqu’à c...

La punaise diabolique, Halyomorpha halys (Stål, 1855) (Hémiptère: Pentatomidae) est une punaise originaire de l’Est Asiatique. En 2012, la punaise a été identifiée en Alsace. En 2016, la punaise est identifiée en Espagne. Plusieurs causes sont à l’origine de la progression rapide de la punaise. La forte polyphagie de cette punaise en est l’une des...

BIOCONTROL OF HAZELNUT : AN APPLIED RESEARCH ACTION DEVOTED TO THE TWO MAJOR PESTS IN FRENCH HAZELNUT

Fig 1 is incorrect. The authors have provided a corrected version here. The publisher apologizes for the error.

Independent foundation and propagules development in C. pygmaea. (XLS)

Queen/Worker thorax volume ratio. (XLSX)

Morphometric data for nanitic workers in C. pygmaea. (XLSX)

Weight of gynes and mature queens. (XLSX)

Foundation development in C. pygmaea. (XLSX)

The red palm weevil (RPW), Rhynchophorus ferrugineus, has been known as a pest for more than one century in its native area. RPW are sex dimorphic. All the stages of RPW live on palms, and more specifically in palm tissues. This chapter reviews current knowledge, recent advances, and yet undetermined features regarding the life cycle and the host p...

This chapter on Paysandisia archon behavior, ecology, and communication is presented in three parts. The first part deals with reproductive behavior and the sex pheromone. In this section, mating behavior is described with a consideration of optimal age and diel periodicity. Early observations have shown that mating can occur a few hours after adul...

The forestry, agriculture and horticulture industries in Europe are under increasing risk from established and invasive pests due to environmental change and the globalization of trade. This book focuses on two invasive insect pests, the red palm weevil Rhynchophorus ferrugineus (Red Palm Weevil, RPW) and the moth Paysandisia archon (Palm Borer Mot...

Paysandisia archon (Burmeister, 1880) (Lepidoptera: Castniidae) is a South American insect developing on palms and recently introduced in Europe where it damages most palm species. Understanding the oviposition behaviour would be decisive for risk assessment and pest management but key points on oviposition behaviour are missing. Using wind tunnel...

Cet article est une synthèse critique sur le piégeage olfactif du Charançon Rouge du Palmier (CRP) à l'aide de phéromone. Le CRP est le ravageur le plus destructif des dattiers et des palmiers d'ornement dans la zone méditerranéenne et est espèce de quarantaine dans l'UE. Le CRP possède un odorat très sensible. Il est attiré par l'odeur émanant des...

Palm Protect is an EU-funded program (2012-14) entitled: “Strategies for eradication and containment of invasive palm borers, Rhynchophorus ferrugineus and Paysandisia archon. The project aims at throwing light on aspects of the pest biology in Europe, which are unknown and preclude efficient control, validating new and reliable methods for detecti...

This paper is a review about the Red Palm Weevil (RPW) ecology, olfactory behaviour and pheromone-based trapping. It separates strong evidences, from plausible assumptions and elements not substantiated. RPW lives most of its life hidden on palm trees it kills opportunistically after adaptation to Mediterranean climate and especially to Canary palm...

Synthèse critique sur le piégeage olfactif du charançon rouge du palmier à l'aide de phéromone : biologie du ravageur, mécanismes d'attraction et piégeage, avantages et limites de la technique.

In social insects, the high variability in the number of queens per colony raises fundamental questions about the evolution of altruism. It is hypothesized, for instance, that nestmate recognition should be less efficient in polygynous than in monogynous colonies because the presence of several breeders increases the diversity of genetically determ...

Reproductive strategy is one of the main factors explaining eusociality and the ecological success of ants. In monogynous ants, independent foundation lead to high levels of relatedness between workers, ensuring their indirect fitness. Territoriality helps to maintain the social cohesion of the colony. In polygynous ants, nestmate recognition is ge...

Crematogaster pygmaea is revived from synonymy under C. abstinens and newly characterized as a ground-nesting ant from northeastern Brazil. It is a habitat specialist in coastal and tabuleiro zones, where it forms extensive polydomous and polygynous colonies that nest in the soil. Workers forage extensively on honeydew and extrafloral nectar, and f...

The ant Crematogaster sp. prox. abstinens is a native species from the coast of Ceará (Brazil). Although few information is available about its biology, it is known that colonies are structured in different nests interconnected by surface network trails. One of the most remarkable features about C. sp. prox. abstinens social structure is its high p...

Does cuticular hydrocarbon profile signal mated status in the ant Camponotus lateralis? An increasing number of studies show that ovarian activity in ants correlates with a modification of the cuticular hydrocarbon (CHC) profile. However, these studies mainly concern «primitive» species of the subfamilies Ponerinae and Myrmeciinae. The link between...