Eduardo Fuentes-Contreras

Eduardo Fuentes-Contreras
Universidad de Talca · Faculty of Agricultural Sciences

Dr.

About

125
Publications
32,648
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1,460
Citations
Citations since 2017
24 Research Items
599 Citations
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
2017201820192020202120222023020406080100120
Introduction
Dr. Eduardo Fuentes-Contreras is Full Professor at the Faculty of Agricultural Sciences of Universidad de Talca. His main research interest are inseticide resistance, population genetics and chemical ecology of pests in fruit crops of temperate areas. The main on-going projects involve aphids and fruit moths as model insects, which are the key pests of pome (apple and pears) and stone fruit (peach, plum and cherry) production in Chile.
Additional affiliations
March 2012 - March 2016
Universidad de Talca
Position
  • Codling moth dispersal at the orchard scale: influence of resource availability, life history and morphological traits
January 2000 - December 2010
Universidad de Talca
Education
March 1994 - December 1998
University of Chile
Field of study
  • Ecology
March 1987 - December 1991

Publications

Publications (125)
Article
Full-text available
The European grapevine moth (EGVM), Lobesia botrana (Denis & Schiffermüller), is a severe pest of grapes, since detected in Chile in 2008 has been subjected to an official control program by the Chilean Department of Agriculture, mainly in vineyards and orchards. Lobesia botrana has also been found in urban areas, mostly on backyard grapes, those h...
Preprint
Full-text available
The arrival of Europeans to the Americas triggered a massive exchange of organisms on a continental scale. This exchange was accelerated by the amazing increase in the movement of people and goods during the 20th century. In Chile, scientific and technical literature contains hundreds of records of exotic insect species in different parts of the te...
Article
Myzus persicae is a cosmopolitan aphid that is highly polyphagous and an important agricultural pest. The subspecies M. persicae nicotianae has been described for highly specialized phenotypes adapted to tobacco ( Nicotiana tabacum ). In Chile, the population of M. persicae nicotianae was originally composed of a single red genotype that did not po...
Article
Full-text available
Based on the importance of using low-risk compounds to protect beneficial agents, the present study evaluated the acute toxicity of lethal and sublethal concentrations of the insecticides thiacloprid, pyriproxyfen, and chlorantraniliprole on adults of Aphelinus mali (Haldeman), the main parasitoid of the woolly apple aphid, Eriosoma lanigerum (Haus...
Chapter
Las feromonas son compuestos liberados por un individuo que causan una reacción específica en otro individuo de la misma especie. Desde el inicio de los estudios sobre feromonas de insectos a partir de los años 1960, se ha visualizado el potencial que tienen estos compuestos naturales en el manejo de plagas. Este capítulo resume información sobre a...
Article
The green peach aphid, Myzus persicae (Sulzer), is a pest mainly controlled with insecticides, and it can acquire resistance through different mechanisms. Pyrethroids can select the knock down resistance (kdr) mutation in M. persicae and can also produce lethal and sub-lethal effects on its main parasitoid, Aphidius colemani Viereck. However, kdr-r...
Article
The codling moth, Cydia pomonella (Lepidoptera: Tortricidae) is a major pest of pome fruit and walnuts worldwide. Although environmentally compatible integrated control strategies, such as mating disruption, attract-kill strategy, and sterile insect technique have been conducted for management of this notorious pest, effects to control of codling m...
Article
Full-text available
The use of synthetic insecticides may cause failures in the biological control of insect pests due to undesired side effects on natural enemies and the rapid evolution of insecticide resistance in agroecosystems. Residues of neurotoxic insecticides can interfere with the recognition of chemical cues used by natural enemies to find pests. We investi...
Article
Full-text available
Chilecomadia valdiviana (Philippi) (Lepidoptera: Cossidae) is a native xylophagous pest in apple orchards in Chile. A series of experiments evaluated the efficacy of trap type, sex pheromone (Z7,Z10-16:Ald) dose, and trap location in the apple tree canopy on trap catch of male adults. Bucket traps (6 L), with and without roof and cross vane spacers...
Article
Full-text available
The codling moth (Cydia pomonella (L.)) is an invasive pest of pome fruits introduced to the Americas in the 19–20th centuries. This pest is widespread on both sides of the Andes range separating Argentina and Chile. We performed an analysis of the population genetic variability and structure of C. pomonella in Argentina and Chile using 13 microsat...
Article
Full-text available
Leucoptera sinuella is a leaf-miner moth present in several regions in the world, which has been recently introduced into Chile. The larvae feed exclusively on the leaves of poplar and willow trees, and the damage caused by the feeding behavior poses a threat to the wood-producing industry. Besides, L. sinuella larvae invade nearby orchards for pup...
Article
Full-text available
The codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), is a major pest introduced to almost all main pome fruit production regions worldwide. This species was detected in Chile during the last decade of the 19th century, and now has a widespread distribution in all major apple-growing regions. We performed an analysis of the genetic var...
Article
Currently, the use of essential oils for behavioral manipulation of insects is being investigated for its potential application in integrated pest management programs. Thus, we identified the chemical composition of Eucalyptus globulus (Labill) and Foeniculum vulgare Mill. essential oils and evaluated its effect on the Aegorhinus superciliosus beha...
Article
Full-text available
Myzus persicae es considerado la tercera plaga de importancia económica de varios cultivos en Chile. Su variabilidad genética es influenciada por la disponibilidad del hospedante primario. Este insecto ha adquirido resistencia a la mayoría de los insecticidas utilizados para su control. El presente trabajo tuvo como objetivo evaluar la diversidad g...
Article
Male and female moth catches of Grapholita molesta (Busck) in traps were evaluated in stone and pome fruit orchards untreated or treated with sex pheromones for mating disruption in Uruguay, Argentina, Chile, USA, and Italy from 2015 to 2017. Trials evaluated various blends loaded into either membrane cup lures or septa. Membrane lures were loaded...
Article
The main pheromone component of Chilecomadia valdiviana has recently been reported to be (7Z,10Z)-7,10-hexadecadienal. The synthesis of a structural analog, (5Z,8Z)-5,8-tetradecadienyl formate is reported. The pheromone analog was not attractive to male C. valdiviana in the field, nor did it antagonize attraction of males to the pheromone compound.
Article
In agroecosystems, introduced aphids that reproduce by obligate parthenogenesis (OP) show strong biased representation of a few genotypes (superclones), whereas species with cyclical parthenogenesis (CP) exhibit the opposite trend with many unique genotypes. We analyzed the biological and genetic features of 23 different aphid species introduced in...
Article
Studies in Australia and China identified host-plant volatile blends from peach and pear that captured relatively high numbers of Grapholita molesta (Busck). To determine if these blends are attractants in other countries and relative to each other, the two host-plant blends, a laboratory blend identified in Switzerland, and a new “total blend” mad...
Article
Full-text available
Field experiments were carried out to study responses of male moths of the carpenterworm, Chilecomadia valdiviana (Lepidoptera: Cossidae), a pest of tree and fruit crops in Chile, to five compounds previously identified from the pheromone glands of females. Previously, attraction of males to the major component, (7Z,10Z)-7,10-hexadecadienal, was cl...
Article
Full-text available
Context: Vegetal extracts represent an alternative to control against agricultural pests that have become resistant to pesticides. Using natural products is considered to be more friendly to the environment and safe. Aims: To determine the insecticidal and antifeedant activity of Polygonum persicaria extracts of two differents populations in Chile...
Poster
Full-text available
Codling moth, Cydia pomonella (L.), is the key pest of pome fruits worldwide. Commercial orchards are subjected to management practices for this pest, such as insecticides prays and mating disruption. Codling moth populations in commercial orchards are maintained by adult immigration from neighbouring unmanaged host-plants. Therefore, identificatio...
Article
Full-text available
Se han revisado críticamente las citas en Chile de especies y subespecies de áfidos (Aphididae) contenidas en 139 contribuciones científicas. Se añaden citas de numerosas especies a partir de especímenes de las colecciones del Muséum national d’Histoire naturelle (París, Francia), del Servicio Agrícola y Ganadero (SAG) (Santiago de Chile, Chile), d...
Article
Full-text available
Chilecomadia valdiviana (Philippi) (Lepidoptera: Cossidae) is an insect native to Chile. The larval stages feed on the wood of economically important fruit tree species such as apple, pear, olive, cherry, and avocado, and also on eucalyptus. This causes weakening and, in case of severe infestation, death of the tree. We report identification of the...
Article
Full-text available
Previous studies have shown that the addition of an acetic acid colure (AA) to traps baited with pear ester, (E,Z)-2,4-ethyl-decadienoate, and codlemone, (E,E)-8,10-dodecadien-1-ol, the sex pheromone (PH) of codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), (Combo lure) can significantly increase moth catches. A commercial AA colure wa...
Article
Full-text available
Codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), is the key pest of apple and walnut production worldwide. Among other variables, successful management of this pest is dependent on adult dispersal at the local scale. Body mass and wing geometric morphology were evaluated on female and male codling moth adults collected from apple and...
Article
San Jose scale, Diaspidiotus perniciosus (Comstock), is a serious pest in Chilean apple tree orchards, and a number of organophosphate insecticides were used to control them for decades. Recently, control failures with these insecticides were reported and linked to insecticide resistance development. In this study, 40 San Jose scale field populatio...
Article
Full-text available
Studies were conducted in the Maule Region to characterize the phenology of the codling moth, Cydia pomonella (L.) The Predictive Extension Timing Estimator (PETE) and a logistic phenological model were validated with eight data sets of cumulative moth catches in sex pheromone (PH) and kairomone-baited traps and the cumulative occurrence of fruit i...
Article
As there was no consensus on the presence or absence of Aphis (Toxoptera) citricidus (Kirkaldy) in Chile, a meticulous literature survey has been carried out to clarify the issue. From this survey, it can be concluded that A. (T.) citricidus is not present in Chile, that it has never been cited as present from first-hand information/observations in...
Article
Full-text available
The response of Grapholita molesta (Busck) males to three-component sex pheromone blends containing a 100% ratio of the major sex pheromone component, (Z)-8-dodecenyl acetate and a 10% ratio of (Z)-8-dodecenol, but with varying ratios of (E)-8-dodecenyl acetate (0.4, 5.4, 10.4, 30.4, and 100.1% E-blends) was tested with populations in eight stone a...
Article
Full-text available
The codling moth, Cydia pomonella (L.), is the key pest of apple production worldwide. Insecticide resistance has been reported in all producing countries, based on five different mechanisms. Codling moth in Chile has resistance to azinphos-methyl and tebufenozide in post-diapausing larvae. However, there are no studies about the susceptibility of...
Article
Despite ongoing interest in deploying Information and Communication Technologies (ICTs) for sustainable development, their use in climate change adaptation remains under-studied. Based on the integration of adaptation theory and the existing literature on the use of ICTs in development, we present an analytical model for conceptualizing the contrib...
Poster
Full-text available
Codling moth, Cydia pomonella (L.), is the main pest of pip fruits and walnut worldwide. Despite its economic importance, little is known about the patterns of dispersal at the local scale, between the orchards and its surroundings areas (and the role played for unmanaged hosts in this process); which are important aspects for establishing an area...
Article
Experiments were conducted in North and South America during 2012–2013 to evaluate the use of lure combinations of sex pheromones (PH), host plant volatiles (HPVs) and food baits in traps to capture the oriental fruit moth, Grapholita molesta (Busck), and codling moth, Cydia pomonella (L.), in pome and stone fruit orchards treated with sex pheromon...
Data
Codling moth (Cydia pomonella L.) is the main pest of pip fruits worldwide. Despite its economic importance, little is known about the genetic structure and patterns of movement at local and regional scale, important aspects for establishing a control strategy for this pest. An analysis of genetic variability on six populations of C. pomonella usin...
Article
Full-text available
The genetic structure of adult codling moth, Cydia pomonella (L.), populations was characterized both inside a managed apple, Malus domestica Borkdhausen, orchard and in surrounding unmanaged hosts and nonhost trees in central Chile during 2006-2007. Adult males were collected using an array of sex pheromone-baited traps. Five microsatellite geneti...
Article
Full-text available
The seasonal dynamics of neutral genetic diversity and the insecticide resistance mechanisms of insect pests at the farm scale are still poorly documented. Here this was addressed in the green peach aphid Myzus persicae (Sulzer) (Hemiptera: Aphididae) in Central Chile. Samples were collected from an insecticide sprayed peach (Prunus persica L.) orc...
Data
W. Barros-Parada, A.L. Knight, E. Basoalto, and E. Fuentes-Contreras. 2013. An evaluation of orange and clear traps with pear ester to monitor codling moth (Lepidoptera: Tortricidae) in apple orchards. Cien. Inv. Agr. 40(2):307-315. Studies were conducted to evaluate the use of several trap-lure combinations to improve the monitoring of codling mot...
Data
Studies in Argentina and Chile during 2010–2011 evaluated a new trap (Ajar) for monitoring the oriental fruit moth, Grapholita molesta (Busck). The Ajar trap was delta-shaped with a jar filled with a terpinyl acetate plus brown sugar bait attached to the bottom centre of the trap. The screened lid of the jar was inserted inside the trap, and moths...
Article
Full-text available
An evaluation of orange and clear traps with pear ester to monitor codling moth (Lepidoptera: Tortricidae) in apple orchards. Cien. Inv. Agr. 40(2):307-315. Studies were conducted to evaluate the use of several trap-lure combinations to improve the monitoring of codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), in apple, Malus domestic...
Article
W. Barros-Parada, A.L. Knight, E. Basoalto, and E. Fuentes-Contreras. 2013. An evaluation of orange and clear traps with pear ester to monitor codling moth (Lepidoptera: Tortricidae) in apple orchards. Cien. Inv. Agr. 40(2):307-315. Studies were conducted to evaluate the use of several trap-lure combinations to improve the monitoring of codling mot...
Article
Full-text available
The green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae) is amajor pest of agriculture worldwide that has proved to be particularly adept at evolving insecticide resistance. Several mechanisms that confer resistance to many insecticide types have been described in M. persicae. We measured the resistance status of nine multilocus genoty...
Conference Paper
Full-text available
M. persicae en Chile, actualmente es considerado como la tercer plaga de importancia económica, afectando cultivos como durazno Prunus persica y pimentón Capsicum annuum. M. persicae se reproduce mediante partenogénesis cíclica, alternando una generación sexual y varias asexuales. Las poblaciones sexuales de M. persicae tienden a ser genéticamente...
Article
Studies in Argentina and Chile during 2010–2011 evaluated a new trap (Ajar) for monitoring the oriental fruit moth, Grapholita molesta (Busck). The Ajar trap was delta-shaped with a jar filled with a terpinyl acetate plus brown sugar bait attached to the bottom centre of the trap. The screened lid of the jar was inserted inside the trap, and moths...
Poster
Full-text available
La polilla de la manzana, Cydia pomonella (L.) (Lepidoptera: Tortricidae), es la plaga más importante de los frutales de pepita en el mundo. Uno de los controles de esta plaga se ha basado en las capturas de adultos machos en trampas cebadas con feromona sexual (E, E) -8,10-dodecadien-1-ol (codlemone, PH). En la actualidad, la disponibilidad de ceb...
Poster
Full-text available
La polilla de la manzana, Cydia pomonella (L.), es la principal plaga de pomáceas alrededor del mundo. La resistencia de esta plaga a insecticidas ha sido reportada en varios países desde principios de 1990. Varios mercados de destino de la manzana chilena, han establecido rigurosos requisitos cuarentenarios para permitir la entrada de este product...
Poster
Full-text available
El pulgon verde del duraznero Myzus persicae (Sulzer), es considerado la tercera plaga de importancia economica en Chile. Tiene como hospedero primario al duraznero (Prunus persica) donde realiza su reproducción sexual y como hospedantes secundarios a un gran número de especies vegetales distribuidas en más de 40 familias botánicas ocurriendo su fa...
Article
The development of insecticide resistance in pest insects is an increasing problem for agriculture, forestry and public health. Aphids are ubiquitous herbivorous insects, with approximately 4700 known species, of which less than 5% exploit the agricultural environment successfully. Of these, the peach-potato aphid Myzus persicae Sulzer is recognize...
Poster
Full-text available
El pulgon verde del duraznero Myzus persicae (Sulzer) es considerado la tercera plaga de importancia económica en Chile. Este áfido alterna entre reproducción sexual (sobre duraznero Prunus persica) y asexual (sobre hospederos secundarios que incluyen cultivos hortícolas y malezas). Su particular modo de reproducción puede conducir diferenciación g...
Poster
Full-text available
Los áfidos se caracterizan por exhibir un modo de reproducción (partenogénesis cíclica) que alterna una fase de reproducción sexual con varias fases asexuales partenogenéticas. Como consecuencia, las poblaciones de áfidos pueden mostrar diversos grados de variación y estructura genéticas, dependiendo de la frecuencia de eventos de reproducción sexu...
Article
Full-text available
Myzus persicae (Sulzer) is a highly polyphagous aphid species, with a subspecies (M. persicae nicotianae) well adapted to tobacco (Nicotiana tabacum L.). We evaluated the effect of this host plant on the aphid performance and detoxification enzymes, in order to test the participation of xenobiotic metabolism on the ability of this aphid to overcome...
Article
Full-text available
Biological invasions are rapid evolutionary events in which populations are usually subject to a founder event during introduction followed by rapid adaptation to the new environment. Molecular tools and Bayesian approaches have shown their utility in exploring different evolutionary scenarios regarding the invasion routes of introduced species. We...
Article
Full-text available
We analyzed the spatial distribution and dispersal of codling moth, Cydia pomonella (L.), adults within two heterogeneous agroecosystems typical of central Chile: commercial apple, Malus domestica Borkhausen, orchards surrounded by various unmanaged host plants. Both a geostatistical analysis of catches of adult males with a grid of sex pheromone-b...