Andrea Verónica Andorno

• PhD in Biology
• Researcher at Instituto Nacional de Tecnología Agropecuaria

The susceptibility of the predators Orius insidiosus (Hemiptera: Anthocoridae) and Tupiocoris cucurbitaceus (Hemiptera: Miridae) to garlic (Allium sativum L.) bulb extract, chili (Capsicum frutescens L.) fruit extract, onion (Allium cepa L.) infusion and Bordelaise broth was investigated in the laboratory. These products were tested at the rate of...

In Argentina, a classical biological control program for the Eucalyptus bronze bug, Thaumastocoris peregrinus (Carpintero & Dellapé), with the egg parasitoid Cleruchoides noackae Lin & Huber (Hymenoptera: Mymaridae) was initiated in 2014. Parasitized eggs of the pest were imported from Uruguay, and a founder colony was established under laboratory...

The developmental time, adult longevity, survival, and fecundity of Ascogaster quadridentata reared on Cydia pomonella were studied at 25 ± 2 ºC and natural lighting. Longevity was measured in different conditions: water; water and honey; and water, honey and host. Developmental time from egg to adult was 43.67 ± 0.75 days. Honey had a significant...

En el presente capítulo se exponen los principios y estrategias del manejo de hábitat, así como estudios de casos en los que se aplica a los sistemas hortícolas.

El presente capítulo tiene como objetivo brindar aspectos generales de las especies a las que se atribuyen las mayores pérdidas de rendimiento y calidad de los cultivos hortí-colas y los principales controladores biológicos que limitan sus poblaciones, ejer-ciendo un control biológico de manera natural.

Glycaspis brimblecombei is an invasive insect species that specifically feeds on Eucalyptus leaves. Native from Australia, this species has spread to several countries becoming a major Eucalyptus pest. Even though its specific endoparasitoid Psyllaephagus bliteus has been present in Argentina since 2005, little is known about its ecology in the reg...

Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is a key pest of tomato crops. Tupiocoris cucurbitaceus (Spinola) (Hemiptera: Miridae) is a neotropical predator capable of consuming T. absoluta eggs. We evaluated the life history traits of T. cucurbitaceus on three different diets: T. absoluta eggs from irradiated parental males and untreated pa...

Abstract. The “blue gum chalcid”, Leptocybe invasa is a pest of eucalyptus worldwide. It has an Australian origin and has expanded into Asia, Europe, Africa and America. L. invasa females were reported from South America in the last decade. Thelytokous parthenogenesis is the most common reproductive mechanism of this pest. However, male adults have...

The green lacewing Chrysoperla externa is a widespread species in the Neotropical region that occurs in different habitats. Its presence in Eucalyptus plantations infested with Glycaspis brimblecombei (Hemiptera: Aphalaridae) and Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) suggests that this lacewing might feed on one or both exotic pes...

The predatory bug Orius insidiosus (Say) (Rhynchota Anthocoridae) is marketed in Argentina mainly to control thrips in greenhouse sweet pepper and used along with a recommended pesticide application schedule to simultaneously manage the presence of other pests. The accurate assessment of the compatibility of pesticides with predator activity is key...

Thaumastocoris peregrinus Carpintero & Dellapé (Hemiptera: Thaumastocoridae) is a small sap-sucking insect that feeds on Eucalyptus L’Hér. leaves. Although it is native to Australia, it currently has a global distribution and it is considered as one of the big five pests of eucalypts around the world. We described the development of T. peregrinus p...

Se describen aquí los estudios desarrollados sobre las plagas de Eucalyptus más relevantes en la Argentina y las acciones desarrolladas para su manejo. Los objetivos fueron, estudiar la biodiversidad de insectos presentes en Eucalyptus spp., conocer la bioecología de las plagas e identificar y seleccionar enemigos naturales para ser utilizados en e...

The red gum lerp psyllid G lycaspis brimblecombei is an invasive insect species, native from A ustralia, that specifically feeds on E ucalyptus trees. It has invaded several countries throughout the world. In A rgentina, it was first recorded in 2005, although little is known about its ecology in the region. We assessed G . brimblecombei population...

Aphidiinae (Hymenoptera: Braconidae) parasitoids of aphids (Hemiptera: Aphidi-dae) in the main pepper producing areas in the province of Corrientes, Argentina ABSTRACT. The pepper (Capsicum annuum L.) is one of the most important vegetables produced in greenhouses in the province of Corrientes. Aphids (Hemiptera: Aphididae) are among the most impor...

Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is one of the most devastating pests of tomato. We studied whether partially sterile T. absoluta males and fully sterile females were capable of suppressing wild populations of this moth in semi-controlled conditions. After irradiating T. absoluta pupae with 200 Gy, emerged males and females were r...

T uta absoluta ( M eyrick) ( L epidoptera: G elechiidae) is one of the most devastating pests of tomato crops. We studied the acceptability and suitability of eggs laid by irradiated T . absoluta pairs to parasitism by the parasitoids T richogramma nerudai and T richogramma pretiosum . T richogramma absoluta pupae were irradiated with X ‐radiation...

La chinche del eucalipto, T. peregrinus, es una de las plaga exótica de cultivos de Eucalyptus en el país. Dada esta condición, carece de enemigos naturales específicos que puedan regular sus poblaciones, sin embargo en los cultivos de eucaliptos habitan una gran diversidad de insectos entomófagos que pueden contribuir a su control, entre los que s...

Megastigmus zebrinus Grissell (Hymenoptera: Torymidae) is reported for the first time from Argentina, associated with galls of Eucalyptus camaldulensis Dehnhardt (Myrtaceae) induced by the gall-forming wasp, Leptocybe invasa Fisher & LaSalle (Hymenoptera: Eulophidae), in Buenos Aires. Megastimus zebrinus was previously found in Australia, its home...

ABSTRACT. The Eucalyptus gall wasp Ophelimus maskelli (Ashmead) (Hymenop-tera: Eulophidae) and its parasitoid, Closterocerus chamaeleon (Girault) (Hyme-noptera: Eulophidae) are reported for the first time from Argentina. O. maskelli is an invasive species of Australia that has been reported as a pest of eucalypts in many countries of Asia, Europe a...

ABSTRACT. Main eucalyptus pests and their entomophagous natural enemies were surveyed in two localities of Buenos Aires province, Argentina. Pest abundance was quantified on different Eucalyptus species and the entomophagous insects associated were registered in order to identify interactions which can be used in biological control strategies. A pr...

Se llevaron a cabo muestreos sobre las principales plagas de eucaliptos y sus enemigos naturales en dos sitios de la provincia de Buenos Aires. Se cuantificó la abundancia de las plagas sobre diversas especies de eucaliptos y se registraron los insectos entomófagos asociados, con el fin de identificar las interacciones que podrían ser utilizadas en...

The Eucalyptus gall wasp Ophelimus maskelli (Ashmead) (Hymenoptera: Eulophidae) and its parasitoid, Closterocerus chamaeleon (Girault) (Hymenoptera: Eulophidae) are reported for the first time from Argentina. O. maskelli is an invasive species of Australia that has been reported as a pest of eucalypts in many countries of Asia, Europe and America....

Banker plants with Aphidius colemani were tested in greenhouse for control of Myzus persicae on arugula and sweet pepper crops and compared to inoculative releases of parasitoids. Banker plants system consisted of pots of oat (non-crop plant) infested with Rhopalosiphum padi (non-pest herbivore). The non-pest herbivore serves as an alternative host...

Se presentan los resultados preliminares de estudios sobre la biodiversidad de insectos en Eucalyptus spp., con énfasis en las asociaciones tróficas entre las principales plagas, Glycaspis brimblecombei, Thaumastocoris peregrinus y Leptocybe invasa, y sus potenciales enemigos naturales.

Bemisia tabaci biotype B is a key pest in pepper crops in Argentina. The parasitoid Eretmocerus mundus is frequently found parasitizing this whitefly in greenhouses without pesticide applications. The present studies were carried out with the objective of evaluating control obtained with different rate and number of parasitoid releases under experi...

Conidiobolus coronatus (Entomophthorales), a pathogen of human and some insects, was isolated from dead specimens of the aphid Neotoxoptera formosana present on chives leaves. C. coronatus infected aphids could pose a threat to growers health. Pest control strategies of N. formosana may also contribute to reduce the human infection risk by C. coron...

Conidiobolus coronatus, entomoftoral patógeno para el hombre y algunos insectos, se aisló a partir de especímenes muertos del áfido Neotoxoptera formosana sobre hojas de Allium schoenoprasum. La presencia de C. coronatus supone el riesgo de una potencial infección para quienes trabajan en la producción de cebollín. El control fitosanitario de N. fo...

Ten aphid species (Hemiptera: Aphididae) were found parasitized by seven aphid parasitoid species (Hymenoptera: Braconidae, Aphidiinae) on organic vegetable crops. Myzus persicae (Sulzer) was the most frequent aphid found on a wide variety of crops, with the largest parasitoid diversity associated. Aphidius colemani Viereck was the most frequent ap...

Diez especies de áfidos (Hemiptera: Aphididae) se hallaron parasitados por siete especies de parasitoides (Hymenoptera: Braconidae, Aphidiinae) en cultivos hortícolas orgánicos. Myzus persicae (Sulzer) fue el áfido más frecuentemente encontrado sobre una amplia variedad de cultivos, y con mayor diversidad de parasitoides asociados. Aphidius coleman...

Los principales atributos biológicos y parámetros poblacionales de Myzus persicae (Sulzer) sobre rúcula ( Eruca sativa Mill.) fueron estimados mediante técnicas de tabla de vida y fecundidad. Los áfidos se criaron en cámaras climatizadas a dos temperaturas, 15±1ºC y 25±1ºC, 60-70% de humedad relativa y 12:12 (L:O) de fotoperíodo. Se utilizó una coh...

La obtención de frutos maduros de duraznero cv. Forastero ha sido fluctuante según el año climático y la ubicación del monte frutal. Los principales causantes de esta merma de fruta podrían ser, las fallas producidas durante la polinización y fertilización como así también, la falta de desarrollo embrionario. El objetivo del presente trabajo fue ev...

Differences in the viability of the pollen and in the morphology of the peach flowers of the “Forastero” peach were observed when this cultivar was grafted onto different rootstocks. The propagation of the rootstocks compared was obtained from seeds (Cuaresmillo and GF 305), rooting of cuttings (Brompton, BrM; Ferdor- Julior, FJM; GF 655/2, GFM; an...

This paper describes an open-field host-specificity test conducted to make a preliminary evaluation of the safety of four candidate agents for the biological control of Heliotropium amplexicaule, an invasive weed of South American origin. These agents were a leaf-eating beetle, Deuterocampta quadrijuga, a flea-beetle, Longitarsus sp., that feeds on...