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Introduction
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August 2015 - present
March 2003 - March 2006
January 2000 - July 2015
Publications
Publications (75)
The use of imidacloprid is a common pest control practice in the Neotropical region. However, the imidacloprid unintended sublethal effects on Neotropical aquatic non-target arthropods and undesirable consequences for aquatic environments remain unclear. Here, we assessed the susceptibility of Chironomus columbiensis (Diptera: Chironomidae) larvae...
Thrips are important pest species in a wide variety of crops. Their cryptic behavior imposes a challenge for damage detection and population control with traditional methods (e.g., insecticides). Although the exploitation of chemical ecology strategies for thrip monitoring and mass-trapping is relatively widespread, the research in this regard in N...
Sublethal exposure to insecticides can trigger unintended responses in non-target insects that may disrupt reproductive and developmental performances of these organisms. Here, we assessed whether sublethal exposure to the pyrethroid insecticide deltamethrin in early life had sublethal and transgenerational effects on the reproduction (i.e., fecund...
Weeds in coffee crops have diverse ecosystem services, such as sheltering
and feeding natural enemies of pest insects. This study aimed to identify the
potential of coffee weeds as food and refuge for natural enemies in shaded
and sun coffee crops. Weeds were sampled in a 100 m transect installed
in each type of coffee crop. Malaise traps and sweep...
En este estudio se presentan los resultados de un monitoreo de los escarabajos Aphodiinae (Coleoptera: Scarabaeidae) realizado con una trampa luminosa Pennsylvania-Minnesota con luz UV en el Centro Universitario Regional del Norte de la Universidad del Tolima en Armero Guayabal, Tolima, Colombia. Se recolectaron 21 especies/morfoespecies, cinco de...
Objetivo.
Evaluar el efecto del gradiente altitudinal y de diferentes sistemas de sombrío en cafetales sobre la infestación de broca del café.
Metodología.
Se evaluó el porcentaje de infestación en doce fincas, en un rango altitudinal comprendido entre 1430 y 2030 m y en diferentes niveles de sombrío, incluyendo cafetales a plena explosión solar....
Objetivo.
Proporcionar información sobre el ciclo de vida del psílido de la concha (o del escudo), Glycaspis brimblecombei en Colombia, y sus enemigos naturales, principalmente la avispa parasitaria Psyllaephagus bliteus, en una plantación de eucalipto en Jericó (Antioquia).
Alcance.
A través de ensayos experimentales, se muestran los resultados d...
The lesser grain borer Rhyzopertha dominica is a serious pest that causes significant economic damages in stored grains. The presence of this pest is mainly controlled using a small number of insecticides increasing risks of compromising the control efficacy due to the selection of resistant populations. Here, the control failure and potential resi...
The potato tuber moth Tecia solanivora is an invasive species threatening potato crops and stored tubers. Previous studies have shown that South American populations of this species have evolved insecticide resistance to major classes of insecticides (i.e. pyrethroids, carbamates and organophosphates). Therefore, testing for other methods of pest c...
Reduviidae incluye el mayor número de especies de depredadores terrestres del Orden Hemiptera, incluyendo depredadores de potenciales plagas en los agroecosistemas. A pesar de la gran cantidad de estudios sobre la taxonomía y morfología del grupo, su filogenia y estrategias reproductivas aún no han sido totalmente dilucidadas. En este trabajo, la h...
In the present study, we recorded for the first time the mayfly species Vacupernius packeri (Allen, 1967) in Colombia and South America describing the egg of this species. The identification was based on nymphs, subimagos, and imagos from Tolima and Caldas, Colombia. The eggs are oval-shaped, with one polar cap, and chorionic plates that are a litt...
Objetivos.
Para ampliar el conocimiento sobre la biología reproductiva del grupo de los hemípteros Auchenorrhyncha, en este trabajo se describe la histología del sistema reproductor masculino de Aethalio reticulatum.
Alcance.
Las cigarritas de la familia Aetahalionidae son insectos terrestres y predominantemente fitófagos, que se configuran como p...
Pentatomidae comprises a diverse group of stink bugs widely distributed in the Neotropical region. Many species are phytophagous and cause injuries to plants, and can thus be defined as agricultural pests. In this study, the anatomy of the female and male reproductive tracts of three important agricultural pests in Colombia is described: Piezodorus...
Objetivos:
Con el fin de conocer aspectos de biodiversidad y distribución de los carábidos del departamento del Tolima, y visibilizar el material para futuras investigaciones, se realizó la curaduría, identificación, diagnosis y sistematización del material depositado en el Museo del Laboratorio de Entomología de la Universidad del Tolima (MENT-UT)...
The first phylogeny of Tricorythodes Ulmer (Ephemeroptera: Leptohyphidae) based on molecular and morphological evidence is presented. A parsimony analysis was conducted with 56 morphological (24 continuous and 32 discrete) characters of 48 species, 39 belonging to Tricorythodes sensu lato and nine additional groups. Bayesian and maximum likelihood...
Boletín Científico Centro De Museos Museo de Historia Natural
Una de las plagas de mayor importancia económica en el cultivo del maíz y otros cultivos semestrales de clima cálido en Colombia es Spodoptera frugiperda. Dependiendo del grado de infestación de esta plaga en del maíz, las pérdidas que pueden ocasionar pueden alcanzar hasta 35% (Torres y Cotes 2005). El control de esta plaga en Tolima, exceptuando...
Objetivos:
En esta investigación se estudiaron las chinches harinosas (Hemiptera: Pseudococcidae y Putoidae) presentes en las raíces de café (Coffea arabica L.) y de arvenses asociadas a este cultivo.
Alcance:
En los municipios de Sandoná, Consacá, La Unión, San Pablo y San José de Albán, departamento de Nariño, Colombia.
Metodología:
Se recogier...
El objetivo de este trabajo fue contribuir al conocimiento de la diversidad de moscas de las
frutas (Diptera: Tephritidae) y de sus enemigos naturales en el departamento de Nariño. Se colectaron 14.005 frutos correspondientes a 16 especies de plantas hospederas, pertenecientes a 10 familias botánicas (Rubiaceae, Rosaceae, Myrtaceae, Fabaceae, Anaca...
The objective of this work was to contribute to the knowledge of the diversity of fruit flies (Diptera: Tephritidae) and their natural enemies in the department of Nariño. A total of 14,005 fruits from 16 host plant species were collected, belonging to ten botanical families (Rubiaceae, Rosaceae, Myrtaceae, Fabaceae, Anacardiaceae, Rutaceae, Cucurb...
Background:
The Guatemalan potato tuber moth, Tecia solanivora, has been the most important pest species in Hispanico-American potato fields since its first record on potatoes in 1956 in Guatemala. This insect pest has been spreading to other parts of the world, including the Canary Islands in Europe. The tuber moth control relies heavily on the u...
The cover image, by Eugênio E. Oliveira et al., is based on the Research Article Pyrethroid resistance is associated with a kdr‐type mutation (L1014F) in the potato tuber moth Tecia solanivora, DOI: 10.1002/ps.4414. Photo Credit: Edison Torrado‐Leon.
A preliminary checklist of the Orthopterans from the Ñambí River Natural reserve is presented. A total of 26 species were studied, five new species are herein described: Championica nambiensis n. sp., Cocconotus awa n. sp., Cocconotus levyi n. sp. (Tettigoniidae: Pseudophyllinae), Antillicharis kwaiker n. sp. (Gryllidae) and Brachybaenus nariniensi...
El objetivo fue caracterizar los sistemas productivos de café en los ecotopos 220A y 221A, de acuerdo con la clasificación establecida por la Federación Nacional de Cafeteros localizados en el departamento de Nariño. En cada uno de estos ecotopos, se estudiaron los sistemas productivos de café, localizados a menos de 1500msnm, entre 1501 y 1800msnm...
The aim of this research was to characterize the coffee production systems in ecotopes 220A and 221A, classification established by the National Coffee Growers Federation, in the department of Nariño. In each of these ecotopes the coffee production systems located at less than 1500 meters above sea level, between 1501 and 1800m and above 1800m were...
The purpose of this work was to study the reproductive biology, schedules and methods of artificial pollination in tamarillo Cyphomandra betacea, Manzano cultivar growing in a town in the department of Nariño (Colombia), located at 2,100 m.a.s.l. with a temperature of 13°C. One thousand (1,000) flower buds of 0.5 cm in length were marked. Every eig...
With the aim to contribute to the generation of integrated pest management
strategies that minimize the use of chemical inputs, studies on the biology of
S. catenifer were conducted under laboratory conditions. Natural occurring
populations of parasitoids of lepidopteran eggs were collected using sentinel eggs
of Sitotroga cerealella (Olivier) (Lep...
Trialeurodes vaporariorum is considered to be one of the most important insect pests because it generates noticeable economic losses in several crops worldwide and its control in general depends on repeated applications of conventional synthetic-insecticides; which can generate environmental problems. In this work, lethal and sublethal effects of e...
El uso de anticontaminantes en las dietas artificiales para la cría masiva de insectos, son comúnmente utilizados para evitar la proliferación de microorganismos del ambiente, impidiendo la contaminación del alimento y espacio de los insectos criados. Por lo tanto, el objetivo de esta investigación fue evaluar el uso de los anticontaminantes formal...
With the aim to contribute to the generation of integrated pest management strategies that minimize the use of chemical inputs, studies on the biology of S. catenifer were conducted under laboratory conditions. Natural occurring populations of parasitoids of lepidopteran eggs were collected using sentinel eggs of Sitotroga cerealella (Olivier) (Lep...
In the integrated pest management the use of several biological control agents is common such as the entomopathogenic fungi (EF) and nematode parasites of insects (NE). These two pathogens may have the same host and habitat, leading to the appearance of synergism or antagonism relations when colonizing the same host. Based on the foregoing, this wo...
This paper presents a preliminary list of Phasmatodea of Ñambí River Nature Reserve, as a result of a six days sampling using sweep net and manual collection. Fourteen species were found, of which six were identified at generic level; Acanthoclonia, Atratomorpha, Globocrania, Ignacia, Parobrimus, Phanocles and eight at specific level; Olcyphides ob...
The parasitoid Prorops nasuta is only parasitoid of the coffee berry borer of African origin that was established in Colombia and is considered the main natural enemy in the biological control of this pest. It is necessary to develop methodologies for its mass rearing to increase its populations and contribute to the integrated management of the co...
Pests and diseases control in green onion cultivation in the department of Nariño is characterized by the use of chemical control. Therefore, the objective of the investigation was to identify the use and management conditions of pesticides on this crop in the small township of Buesaquillo, municipality of Pasto. To determine the type of products u...
This research was conducted with the objective of evaluating a strategyagroecological management of fruit borer Neoleucinodes elegantalis.Homeopathic treatments were evaluated three CH4, CH7 and CH14, using the principle of isopathy. Bioassays weretested the three homeopathic solutions, the treatments CH4, CH7 presented a lower number of eggs and l...
RESUMEN-ca para el manejo del pasador del fruto Neoleucinodes elegantalis. Fueron evalua-la isopatía. Mediante bioensayos se probaron tres soluciones homeopáticas, las soluciones CH4 y CH7 presentaron un menor número de huevos y larvas por fruto, según la prueba de Duncan estas mostraron diferencias estadísticas significativas comparadas con el tes...
The aim of this work was to make an inventory of oribatid mite families associated to six land uses: a silvopasture arrangement, a potato crop in rotation with pastures, a potato crop, a bank forage protein, a plot of three grasses and clover mixed and a secondary forest. The variables abundance, richness and diversity index were measured; data was...
The Plecoptera of Nariño are represented by Anacroneuria (Perlidae) and Claudioperla (Gripoterygidae). The only species recorded for Nariño are A. planada and A. tejon. Considering the lack of studies of Plecoptera in this region, the objective of this work was to carry out an inventory of the order for the department. We documented thirteen Anacro...
With the objective of evaluating the attraction capacity of methyl salicylate on beneficial insects (parasitoids and predators) present in the coffee crop, 20 sticky traps with methyl salicylate were installed in a 1.6 Ha plot and 20 traps without an attractor were installed in a 1.6 Ha control lot in the municipality of Taminango, Nariño, Colombia...
The objective of this investigation was to evaluate the diversity, abundance, and biomass of soil macrofauna in four soil uses: potato crops with minimum tillage, potato crops with traditional tillage, bare soil, and a kikuyu turfgrass. The methodology from the Tropical Soil Biology and Fertility (TSBF) program was used to evaluate the fauna. Soil...
In Colombia, 9 families and approximately 70 species of Ephemeroptera are known. In the country, the taxonomic knowledge at the species level for this order is still incipient, since many regions remain without reports. In the department of Putumayo there are no reports of Ephemeroptera, despite de great number of water resources, located from the...
RESUMEN Los insectos plaga representan los mayores problemas en plantaciones forestales, principalmente, en monocultivos del género Eucalyptus, debido a los relevantes daños y su persistencia durante todo el ciclo de cultivo. Supputius cincticeps presenta potencial para ser usado en el control biológico de larvas defoliadoras de eucalipto. El objet...
El monitoreo de machos de minador del café Leucoptera coffeella (Guérin-Méneville) (Lepidoptera: Lyone- tiidae), fue evaluado utilizando trampas cebadas con feromonas sexuales. Se realizaron evaluaciones de las poblaciones de los machos de L. coffeella y del porcentaje de hojas minadas y huevos en siete cafetales, localizados en la región del Triân...
The use of complementary diets in parasitoids nutrition plays an important role in these insects' survival and fertility. For this reason, the effect of the diet in the coffee berry borer parasitoid Prorops nasuta, was evaluated using different sugar and protein solutions. The parasitoids were fed separtely in a daily basis with 5 sugars in two con...
With the objective of finding resistance sources to the attack by the potato moth Tecia solanivora, five potato varieties, tuquerreña, capiro, criolla amarilla, tornilla, and mambera, were evaluated. The pest's demographic parameters were estimated, finding that its life cycle was extended to 75 days in the tuquerreña variety, which was 9 more days...
The use of pheromone traps was tested for monitoring males of the coffee leaf miner, Leucoptera coffeella (Guérin-Méneville) (Lepidoptera: Lyonetiidae). Insect sampling was carried out in seven coffee plantations under different agronomic conditions in the two regions - Triângulo Mineiro and Zona da Mata, MG, Brazil. The sampling period ranged from...
Fecha de receoción: l6 de iunio 2010 Fecha de aceptación: 5 de abril 201 1 RESUMEN Debido a la necesidad de generar alternativas que permitan asegurar la calidad y diferenciación del café colombiano, se planteó la siguiente investigación con el objeto de caracterizar algunas fincas cafeteras por calidad de la bebida y su posible relación con alguna...
Tricorythodes caunapi sp n. is described and illustrated from larvae and adults of both sexes. The name refers to the Caunapí River, located on the Pacific coast of Colombia, where the type-material was collected. This species can be recognized by the following combination of characters of adults: shape of the male genitalia, tibiae and tarsi with...
To control the coffee berry borer Hypothenemus hampei (Coleoptera: Curculionidae) during 1999 and 2000, parasitoids of African origin Prorops nasuta (Hymenoptera: Bethylidae) and Cephalonomia stephanoderis (Hymenoptera: Bethylidae) were released in coffee farms in the northern region in the department of Nariño in La Unión, Buesaco and San José de...
Three new species of Baetodes Needham & Murphy are described based on nymphs collected in the Nariño department, in the southern region of Colombia. The main morphological characteristics that can be used to distinguish them from other species of genus are presented. Baetodes awa sp. nov.: labrum with subapical row of six setae of subequal length,...
Many species of Ephemeroptera have been described based on either nymphs or adults. Only 10% of Ephemeroptera species in South America are known in both life stages. The current research was carried out in order to molecularly associate nymphs and adults of Ephemeroptera, using the amplified fragment length polymorphism (AFLP) technique. We obtaine...
El aguacate 'Hass' es un producto con potencial de exportación pero los daños presentados por insectos perforadores lo restringen para el norte del Tolima (Colombia). Para plantear su manejo se estableció la cría de la especie involucrada con frutos afectados individualmente. Se determinó el número de días en estado pupal para observar su morfologí...
p>Con el objetivo de reconocer e identificar las especies de avispas de la familia Vespidae presentes en plantaciones de palma aceitera (Elaeis guineensis Jacq.) en Tumaco, zona palmera occidental de Colombia, se evaluó e identificó la diversidad de las especies presentes en dos lotes de diferente estado fenológico: establecimiento (E) con 3 años d...
The stonefly genus Claudioperla is reported for the first time from Colombia based on adult male, female and larval specimens collected in the southwest Andean region of Cumbal, Nariño Department at 3050 m.a.s.l. The collection site on River Blanco is a low order stream dominated by riffle zones with high slope and the riparian vegetation consists...
The population density of the coffee leaf miner Leucoptera coffeella (Guerin-Meneville & Perrottet) (Lep., Lyonetiidae) can be estimated using pheromone traps in coffee fields as male capture reflects this pest damage based on previous correlational study. However, the spatial distribution of pheromone traps and their density are necessary to optim...
Pest monitoring with pheromone traps is affected mainly by factors such as trap placement and pest biology. The intertrap distance can affect the capture due to competition among traps that are placed at short distances. We studied the interference among pheromone traps used to monitor males of the coffee leaf miner, Leucoptera coffeella (Guérin-Mé...
Actualmente, en los municipios del departamento de Nariño (Colombia), en los cultivos de trigo y papa que son los principales sistemas de producción, se presentan altas infestaciones de poblaciones de chisas encontrándose hasta 350 larvas/m2, representando un factor limitante para la producción de los cultivos. Una alternativa promisoria para el ma...
A B S T R A C T Title: Evaluation of the biocon- trol activity of Beauveria bassiana, Metarhizium anisopliae, on larvae of Ancognatha scarabaeoides (Coleoptera: Scarabaeidae). High grub populations of coleopteran, frequently attack crops of wheat and potato in the Department of Nariño, Colombia. Reports indicate that infesta- tions levels reach mor...
