Jordi Riudavets

Jordi Riudavets
IRTA Institute of Agrifood Research and Technology | IRTA · Sustainable Plant Protection Programme

PhD

About

123
Publications
31,091
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2,360
Citations
Citations since 2017
33 Research Items
1320 Citations
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250
2017201820192020202120222023050100150200250

Publications

Publications (123)
Article
Full-text available
In this study, the predatory mite Transeius montdorensis (Acari, Phytoseiidae) was tested for the control of the tomato russet mite (TRM) Aculops lycopersici (Acari, Eriophyidae) in experiments with small plants, under semi-field and crop conditions. The releasing strategy consisted of repeatedly introducing the predator together with additional br...
Article
Global warming affects the distribution of stored product pest insects across Europe in a way comparable to field crop and orchard pests. Nevertheless, stored product research has been neglected in Europe and detailed monitoring is lacking. This paper aims to illustrate current knowledge about the movement of storage pests up north today triggered...
Article
Our work reports on the establishment of the neotropical parasitoid Dolichogenidea gelechiidivoris Marsh (Hymenoptera: Braconidae) for the first time in Europe. This larval parasitoid has been recorded in samples collected in commercial tomato crops in Catalonia (North‐eastern Spain) from 2016 to the present. Dolichogenidea gelechiidivoris is consi...
Article
High CO2 modified atmosphere packaging (MAP) is a sustainable alternative for pest control in stored products. The effectiveness of this method varies depending on the CO2 concentration used, insect exposure time, temperature, humidity, the tested insect species, and the insect's stage of development. One factor that substantially influences the co...
Article
Sitophilus zeamais is a key pest in stored rice in Spain and other Mediterranean countries. Today, it is mostly controlled with a few pesticides, such as pyrethroids or phosphine. Apart from the problem of pesticide resis-tance, this can lead to the accumulation of toxic residues in the stored rice. Therefore, alternative control methods are needed...
Article
Sitophilus zeamais is a key pest in stored rice in Spain and other Mediterranean countries. Today, it is mostly controlled with a few pesticides, such as pyrethroids or phosphine. Apart from the problem of pesticide resistance, this can lead to the accumulation of toxic residues in the stored rice. Therefore, alternative control methods are needed....
Article
Full-text available
Rearing insects on agro-industrial by-products is a sustainable strategy for the circular economy while producing valuable products for feed and foods. In this context, this study investigated the impact of larvae diet containing agro-industrial by-products on the contents of fatty acids and sterols of Ephestia kuehniella (Zeller) (Lepidoptera: Pyr...
Article
Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) is considered one of the main pests threatening tomato production worldwide. In the Mediterranean, the use of predatory mirids is widespread, and although several larval parasitoid species have been recorded in the area, their contribution to the biological control of the pest is often neglected. Wit...
Preprint
Our study aimed to assess the contribution of natural parasitism due to Necremnus tutae Ribes & Bernardo (Hymenoptera: Eulophidae) to the biological control of Tuta absoluta (Meyrick) (Lepidopera:Gelechiidae) in commercial plots where an IPM program based on the use of predatory mirid bugs was implemented. During the samplings, the presence of anot...
Article
Trioza erytreae is one of the vectors of Huanglongbing (HLB), the main global citrus groves threat. Since its recent detection in the north-western Iberian Peninsula (Spain and Portugal), its contention and eradication have been a priority to prevent its spread. For the biological control of T. erytreae, it is important to understand the role that...
Article
This study evaluated the potential of flowering plant species naturally occurring to promote the conservation and early establishment of key natural enemies of aphids and thrips in apple and peach orchards. Flowering plants present in the North East of Spain, a main fruit production area in Europe, were sampled to determine their flowering period a...
Article
Conservation biological control could be an alternative to insecticides for the management of the aphid Myzus persicae (Sulzer). To develop sustainable strategies for M. persicae control in peach orchards in the Mediterranean, a 2-yr field experiment was conducted to identify the key predators of the aphid; to determine whether the proximity of ins...
Article
Full-text available
In recent years, modelling techniques have become more frequently adopted in the field of food processing, especially for cereal-based products, which are among the most consumed foods in the world. Predictive models and simulations make it possible to explore new approaches and optimize proceedings, potentially helping companies reduce costs and l...
Article
Full-text available
Diverses espècies de l'ordre dels tisanòpters, coneguts com a trips, són plagues de diversos cultius hortícoles i fruiters de l'àrea mediterrània, entre les que destaquen Frankliniella occidentalis (trips de les flors), Thrips spp., Pezothrips kellyanus i Chaetanaphothrips orchidii (trips de l'orquídia). Totes elles causen danys directes sobre els...
Article
The distribution of Trogoderma granarium Everts has expanded steadily in recent years. This is a very destructive coleopteran species with many economic implications for the trade of grains in countries where it is present. Therefore, it is important to gather data that can confirm or reject the pest’s establishment in a particular country. Spain h...
Article
This study assesses the feasibility of using natural enemies for the control of Acanthoscelides obtectus Say and Zabrotes subfasciatus Boheman (Coleoptera: Chrysomelidae), key pests of stored dried beans, Phaseolus vulgaris L. (Fabales: Fabaceae). The predatory mites Blattisocius tarsalis Berlese (Acari: Ascidae) and Amblyseius swirskii Athias-Henr...
Article
Full-text available
The aim of this study was to evaluate five agro-industrial byproducts (apricots, brewer's spent grains, brewer's spent yeast, feed mill byproducts including broken cereal grains, and hatchery waste including eggshell debris, fluff, infertile eggs, dead embryos, and egg fluids) or mixtures thereof as food diets of Ephestia kuehniella (Zeller), Teneb...
Article
In this study, two predatory mites and two parasitoid wasps were evaluated for their effectiveness in controlling Callosobruchus chinensis (Coleoptera: Chrysomelidae), a common pest in stored chickpeas. The predatory mite Amblyseius swirskii (Acari: Phytoseiidae) preyed on the bruchid’s eggs but did not consume a large amount; the mite Blattisocius...
Chapter
Chapters 6 to 15 in this book provide a complete view of the feasibility of Integrated Pest and Disease Management (IPDM) in protected crops. Within the framework of an advanced sustainable production system, IPDM is the primary response for the growers facing consumer demands of high quality products while at the same time addressing environmental...
Article
Three MAs with 50%, 70% and 90% CO2 in air was tested at different exposure times on all the developmental stages of R. dominica using chickpeas packed with 4% and 96% filling ratio in which there was excess of CO2. At 4% filling ratio the loss of the gas was negligible. The exposure time to reach 50% mortality (LT50) was estimated for each develop...
Article
Full-text available
We investigated the efficacy of two types of modified atmospheres (MA) against adults of the khapra beetle, Trogoderma granarium Everts, and the maize weevil, Sitophilus zeamais Motschulsky, under laboratory conditions. Adults of the above species on wheat were exposed to a carbon dioxide (CO2) concentration of 70% or a low oxygen (O2) concentratio...
Article
Modified atmospheres (MAs) with high CO2 concentrations are used for packaging several commodities with different purposes, including as an alternative method for pest control. When used in gas-tight flexible packages, sorption by the commodity produces a vacuum effect that causes the package to adopt a random shape and makes it impossible to resha...
Article
Full-text available
(1) Habitat management can enhance beneficial arthropod populations and provide ecosystem services such as biological control. However, the implementation of ecological infrastructures inside orchards has a number of practical limitations. Therefore, planting/growing insectary plants in the margins of orchards should be considered as an alternative...
Article
Full-text available
Aphids are a serious pest for peach crops. They have traditionally been managed with insecticides, but there is increasing concern about the risk that insecticides pose to both humans and the environment. As a first step to use biological control in aphid management, we conducted a 3-year field survey in northeastern Spain to determine which parasi...
Article
Full-text available
Venturia canescens and Habrobracon hebetor are cosmopolitan parasitoids found in large numbers in food processing facilities in northeastern Spain and in many other countries. These parasitoids attack larvae of pyralid moths, which are important pests of stored products and food industries worldwide. In this study, we evaluated the performance of t...
Article
Full-text available
Non-pheromone semiochemicals or allelochemicals (kairomones, synomones, allomones) are often derived from, or are similar to, host plant odours and depending on their use, these semiochemicals may have to compete with the same or similar odours emanating from adjacent host plants with unknown consequences on trapping efficacy. The aim of this study...
Article
Pyralid moths, such as Ephestia kuehniella (Zeller) or Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), are among the pests of most concern in mills and food industries worldwide. One option for their control, which presents an alternative to the application of insecticides, is the release of natural enemies. Habrobracon hebetor (Say) (Hyme...
Article
The weevil Sitophilus zeamais (Motschulsky), the maize weevil, is a pest of stored maize that can cause feeding damage and lead to the proliferation of toxigenic fungi. The application of modified atmospheres with a high concentration of CO2 is an alternative method for the control of S. zeamais and the inhibition of fungal growth. The objectives o...
Article
Consumer demands for better quality food have led to research on new tools aimed at early detection of insect pests in agro food industries. In these industries, internal grain feeders are the most concerning pests because of being the first colonizers of stored grain and transmitting harmful micro-organisms, such as fungi and bacteria, which affec...
Article
Methyl isonicotinate is one of several patented 4-pyridyl carbonyl compounds being investigated for a variety of uses in thrips pest management. It is probably the most extensively studied thrips non-pheromone semiochemical, with field and glasshouse trapping experiments, and wind tunnel and Y-tube olfactometer studies in several countries demonstr...
Article
The early detection of insects during grain storage and processing remains a major issue for the cereal industry, especially when immature stages are hidden inside the grain kernels. For this reason, we developed a qPCR method to detect and quantify one of the main pests of stored products in rice: the coleopteran internal feeder Rhyzopertha domini...
Article
Tuta absoluta is an invasive pest species that affects tomatoes and other solanaceous crops and is found in Europe and other Mediterranean areas. Hitherto, fumigation with methyl bromide is the only measure used to control this pest during the postharvest period. Because of methyl bromide phytotoxicity and health, safety and environmental concerns,...
Article
Full-text available
In Northeast Spain, the invasive Drosophilidae species Drosophila suzukii has become an important agricultural pest, mainly of strawberries and cherries. To improve sustainable management practices, we conducted field surveys and laboratory trials to better understand the pest ecology, identify non-crop hosts, and assess the effect of strawberry va...
Article
Full-text available
Cationic α-helical antimicrobial peptides such as BP100 are of increasing interest for developing novel phytosanitary or therapeutic agents and products with industrial applications. Biotechnological production of these peptides in plants can be severely impaired due to the toxicity exerted on the host by high-level expression. This can be overcome...
Article
Application of pest management programs for the food industry reduces pesticide applications, increases the effectiveness of pest suppression to acceptable levels and reduces the cost and risk of negative non-target effects. In these programs, efficient sampling is a decisive factor for undertaking management measures. In this study, a one year sur...
Conference Paper
Full-text available
Las técnicas que actualmente se utilizan para la detección de plagas en la industria agroalimentaria son incapaces de detectar infestaciones de insectos cuando se encuentran en pequeñas cantidades o cuando se trata de especies cuyos estadios de desarrollo se encuentran escondidos en el interior del grano, como por ejemplo, el gorgojo Rhyzopertha do...
Article
The objectives of our research were to determine the effect of supplementary food on the dispersion of the predatory bugs Macrolophus pygmaeus (Hemiptera: Miridae), Orius laevigatus and O. majusculus (Hemiptera: Anthocoridae) when released on a pest-infested or non-infested cucumber crop and to evaluate the effectiveness of O. majusculus, released...
Conference Paper
Full-text available
9 Insect internal feeders, which develop inside the grain kernels, are difficult to detect using 10 traditional sieving methods. For this reason, a multiplex PCR has been developed to detect and 11 identify five of the most important internal grain pests worldwide (the weevils Rhyzopertha 12 dominica (Fabricius), Sitophilus zeamais (Motschulsky), S...
Article
Media monitoring for emerging risks has become an essential tool in public health. This approach also has the potential to deliver early warning of emerging risks to plant health. The European Food Safety Authority (EFSA) has launched a project in collaboration with the Joint Research Centre (JRC) of the European Commission to make use of the Medic...
Article
Pheromone-lured funnel traps are widely used for pest monitoring and mass trapping in agricultural fields and stores. DDVP vapona (dichlorvos), the insecticide of choice as a killing agent inside traps, has been banned, and research on new products is being pursued. Essential oils (EO) could be an alternative if properly formulated. To test their p...
Article
Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae) (western flower thrips, WFT) is a key pest in a range of crops worldwide. Anthocorid species (Hemiptera) are important natural enemies of thrips. Several experiments were undertaken to determine whether a thrips lure, methyl isonicotinate (MI), affected the behaviour of WFT and anthoco...
Article
Thrips are small insects that cause direct damage and some transmit viruses to agricultural and horticultural crops and forest trees. Current thrips management requires a significant input of agrichemicals, which creates risks for workers, consumers and the environment. As well, a number of thrips species are of significant quarantine concern. New...
Article
The invasive pest Drosophila suzukii (Matsumura) (Diptera: Drosophilidae) causes serious economic damage in several soft fruit crops. This study aimed (1) to identify naturally occurring parasitoids and predators of this pest in North East Spain and (2) to get preliminary data on their potential as pest biological control agents. Two parasitoid spe...
Conference Paper
Full-text available
Intensive in-storage sampling is essential for pest detection and integrated pest management (IPM) in grain industry to determine grain quality and satisfy biosecurity concerns. However, traditional sieving methods are not suitable to detect hidden infestations of internal development stages of grain pest species. Thus, the need of more advanced st...
Conference Paper
Full-text available
Rhyzopertha dominica (Fabricius) is one of the most common damaging pests of stored grains causing significant losses worldwide. Eggs are deposited on top of the grain while newly hatched larvae are voracious feeders inside the kernels where they develop until the emergence of adults. In the stored grain ecosystems, the naturally occurring parasito...
Conference Paper
Full-text available
Drosophila suzukii (Matsumura) es una plaga polífaga e invasiva que en los últimos años se está expandiendo por Europa y América amenazando los cultivos de fresa, cereza, frambuesa y otros frutos pequeños de piel fina. Con la finalidad de aplicar prácticas de control sostenibles, los objetivos de este estudio fueron: (i) determinar la dinámica pobl...
Article
The tomato borer Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is an invasive pest that produces significant damage to tomato crops in the Mediterranean area. Although several species of predatory bugs are successfully being used for biological control of the pest, little is known about the parasitoids that are able to exploit T. absoluta as a...
Article
The species of the genus Orius Wolff are well known as generalist predators able to control pest outbreaks in several agroecosystems. Correct species identification can be problematic given their similarities, particularly in the immature stage. A pair of primers previously designed from the internal transcribed spacer-1 (ITS-1) region was able to...
Conference Paper
Sitophilus zeamais (Motschulsky) y Rhyzopertha dominica (Fabricius) son las plagas de grano almacenado más preocupantes para la industria agroalimentaria. Son capaces de sobrevivir al proceso de pulido y molienda del grano y llegar a contaminar el producto final. Se hace pues necesario, desarrollar métodos efectivos para su control durante el largo...
Article
Bruchid beetles are important pests of field and stored legumes, causing great economic losses. The main pest species are Callosobruchus maculatus, Acanthoscelides obtectus and Zabrotes subfasciatus. Modified atmospheres (MAs) with high carbon dioxide (CO2) content are environmentally friendly pest control methods for stored products. They are effe...
Conference Paper
Sitophilus zeamais and Rhyzopertha dominica are the most concerning pests of stored rice in the Mediterranean coast of Spain. They can survive the polishing process and consequently, adults may be present in the final product. Therefore, alternative methods for its control are necessary during the long storage period. Biocontrol agents are essentia...
Article
A survey of natural enemies was conducted in six facilities, four companies dealing with dried fruits and two mill companies. We assessed the natural enemies of pests occurring in the facilities, the pest species with which they were associated and the temporal dynamics of both. Pheromone traps, yellow sticky traps and light traps were used for sam...
Article
Two Macrolophus species, M. melanotoma (=M. caliginosus) and M. pygmaeus, have been referred to as efficient predators of several key pests on vegetable crops in Europe. However, due to the great morphological similarity of these species, they have been confused, with important consequences for inoculative releases of these predators in greenhouses...
Article
Full-text available
Nowadays, the high rate of human population growth and the consequently higher world food supply are general concerns. Moreover, it is completely necessary to meet the demands for food without over-exploiting natural resources. In addition to the above it is important to seek available and economic feed resources for animal nutrition that are not...
Article
Modified atmospheres (MAs) are safe and environmentally friendly alternatives to control pests in stored products. However, to accommodate the requirements of the food industry, the control of insects by a MA can be a too lengthy process. This paper describes the potential of sulphur dioxide as an additive to reduce the long lethal exposure of modi...
Article
Venturia canescens (Gravenhorst) is an ichneumonid generalist parasitoid that successfully attacks the larvae of different lepidopteran pests that infest stored products. These pest species include Plodia interpunctella and Ephestia kuehniella. In this study, we aimed to evaluate the influence of the rearing host on the parasitoid’s ability to dete...
Conference Paper
Full-text available
Portugal is the largest consumer of white rice in Europe, and consequently a large number of farmers and industries are associated with rice production, transportation and processing. During five years, studies were conducted in six on-farm stores, and three rice industries in Portugal in order to identify the most important noxious agents (insects...
Conference Paper
Full-text available
Con el ritmo de crecimiento actual de la población mundial, se prevé que la demanda de alimentos superará la oferta, constituyendo un peligro de sobreexplotación de los recursos naturales. Encontrar fuentes de proteína y nutrientes más económicos y que no compitan en recursos con los seres humanos resulta, por tanto, necesario. En este marco, los i...
Article
In this article, we assessed the reproduction rates of the generalist pteromalid parasitoids Anisopteromalus calandrae and Lariophagus distinguendus on the coleopteran pest species, Sitophilus oryzae and Rhyzopertha dominica, when these hosts were offered together under environmental conditions reproducing spring or early summer. These species had...
Article
This study reports the efficacy of using CO2 against Sitophilus zeamais Motschulosky and S. oryzae L. as alternative treatment to the rice stored in a rice mill in Portugal. The experiments were conducted in a silo containing 40 ton of polished rice and four hermetic big bags of 1 tonne capacity two with paddy and two with polished rice. The compos...
Article
Full-text available
Purpose of review: The present review provides an overview of insect pest species associated with packaged-food products, potential mechanisms leading to infestation of packaged products, and strategies to prevent such infestation. Findings: There are two possible reasons that may explain the presence of insects in packaged products: (1) insects ar...
Article
Preventing the presence of pests in the final product of a food company requires appropriate pest management throughout the different stages of production and in all areas of the facility. Sampling and monitoring pests over time and space is therefore very important for implementing a correct pest management programme. In this study, we present the...
Article
The development of alternative treatments for pest control in food commodities is an increasing demand from the food industry, which should meet consumer demands for the reduced use or elimination of pesticides. The use of carbon dioxide (CO2) at high pressure is one of the most rapid options for arthropod pest control among current commercial trea...
Article
Full-text available
The distribution and abundance of stored product pests and their natural enemies infesting the upper layer of a barley pile was assessed in this study. Sampling was carried out on a monthly basis from February to December 2009. Insects were sampled with a grain trier and pitfall traps. Yellow sticky traps were also used to capture flying insects. M...
Article
Pests that affect stored products can be very harmful; they can affect stock, damage products by reducing their weight or by contaminating them, and consequently affect a brand’s reputation. As the range of permitted chemical products is being progressively reduced, biological control is a tool that is being increasingly developed. Anisopteromalus...
Article
Nesidiocoris tenuis (Reuter) (Hem. Miridae) is a native zoophytophagous predator of the Mediterranean region, and its populations colonize tomato crops when they are not heavily treated with insecticides. This generalist predator has a high capacity for controlling insect pests, and it is currently commercially produced and released in some areas t...
Article
a b s t r a c t Pests that affect stored products can be very harmful; they can affect stock, damage products by reducing their weight or by contaminating them, and consequently affect a brand's reputation. As the range of per-mitted chemical products is being progressively reduced, biological control is a tool that is being increas-ingly developed...
Article
Modified atmospheres based on high carbon dioxide (CO2) content offer an alternative to fumigation for arthropod pest control in durable commodities. The present study aimed to establish the efficacy of using modified atmospheres during packaging (MAP) to control a wide spectrum of pests and their respective developmental stages that affect final f...
Article
are considered key pests of greenhouse cucumbers, causing loss of crop yield, sooty mould, scarring and malformation of fruits. In previous trials, the polyphagous mirid bug Dicyphus tamaninii reduced these pest populations, but no data were available when both preys coexist in the crop. A treatment with a predator:prey ratio of 3:10 considering bo...
Article
Greenhouse whitefly and western flower thrips are considered key pests of greenhouse cucumbers, causing loss of crop yield, sooty mold, scarring and malformation of fruits. In previous trials, the polyphagous mirid bug Dicyphus tamaninii reduced these pest populations but no data were available when both preys coexist in the crop. A treatment with...
Article
The polyphagous predators Orius laevigatus and O. majusculus are common in several vegetable crops and are well-known biocontrol agents of thrips. The whitefly Bemisia tabaci is an important pest for some of these crops. The aim of the present study was to examine the potential of O. laevigatus and O. majusculus as biocontrol agents for B. tabaci w...
Article
This study investigated the morphology of damage produced by three important stored-product pest species, Rhyzopertha dominica, Sitophilus oryzae and Lasioderma serricorne, in food packaging film. Three different types of plastic film (polypropylene 25μm, polyethylene 50μm and polyester 12μm), a multilayer film (paper, polyethylene 15μm, aluminium...
Article
Macrolophus caliginosus is a polyphagous mirid bug native to the Mediterranean area where it is widely used as a biological control agent, both in protected and open-field vegetable crops. Its reproductive biology remains largely unknown and a better understanding of it will improve mass rearing and release strategies. In the present work, we studi...
Article
Full-text available
The zoophytophagous mirid bug Macrolophus caliginosus is an important biocontrol agent of whiteflies in the Mediterranean region. Periods of low productivity in commercial breeding units and unsuccessful establishment in greenhouses prompted this study of mating behavio