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The fruit borer, Neoleucinodes elegantalis (Guenee 1854) is the main pest infesting naranjilla crop (Solanum quitoense) in Ecuador, causing up to 70% loss of production. This research describes the biology of this insect in a laboratory environment simulating the subtropical environment of the Amazonian Andes (average temperature of 24 ± 1 °C and relative humidity of 85%). Adult insects were sexed, a population created with a ratio of two males for each female and larvae were reared in unripe naranjilla fruits. Eggs were placed on the fruit in masses of 3 to 15 units. Five larval instars were confirmed according to width of the cephalic capsules with a total larval duration of 20.4 ± 0.13 days. The pupal stage lasted 13.02 ± 0.35 days. Male adults had longevity of 10.06 ± 1.75 days and females 10.86 ± 1.30 days. Finally, pre-oviposition period lasted 2.67 ± 0.72 days, oviposition 4.33 ± 1.90 days and post-oviposition 3.87 ± 1.13 days.

Mora de Castilla (Rubus glaucus, Benth), also called blackberry, is grown mainly in Colombia and Ecuador. This fruit crop is of economic importance for farmers in the Province of Tungurahua (Ecuador). In this field research, the effect of Trichoderma asperellum (1.53 × 109 CFU/g) inoculation was assessed on crop yield and fruit weight at three production sites (Huachi Grande, Pillaro and Tisaleo in Ecuador). Factorial experiments were conducted consisting of treatments of 0.18 g of a commercial product per plant and a second uninoculated treatment). The product was applied eight times per month and the weekly fruit harvest recorded in each of the eight applications. The inoculation of T. asperellum had a significant effect on crop yield and fruit weight: yield was greatest in Tisaleo (5350 g/plant) with T. asperellum treatment, which was increased by 17% over the uninoculated witness (4447 g/plant). Fruit weight in Pillaro was improved from 5.36 g/fruit for the uninoculated control to 6.04 g/fruit (12.6%). Additionally, the organic matter (OM) content was correlated with the fungal population in the soil. Tisaleo had the highest OM (4%) and the highest yield in this study. In conclusion, the inoculation of T. asperellum in the soil positively affected crop productivity.

El género Trichoderma y en menor grado Purpureocillium, han sido estudiados ampliamente por sus propiedades como microorganismos benéficos y su eficacia en el control de enfermedades. Sin embargo, la eficacia biológica, no es el único parámetro que se considera al momento de formular un microorganismo; la viabilidad, la pureza y la concentración en la formulación, son características importantes para asegurar el éxito en campo. El propósito de este estudio fue probar distintos tipos de formulaciones (gránulos, polvos, líquidos) registrar su comportamiento en el tiempo, utilizando las variables viabilidad, concentración y pureza para seleccionar las mejores formulaciones en función de estos parámetros. Como resultado se obtuvo que los bioformulados a base de T. asperellum presentaron mayor estabilidad durante el almacenamiento, siendo más estables las formulaciones sólidas secas en comparación con los productos líquidos. En los formulados para P. lilacinum, se observó que la presentación de polvos mojables mostró la concentración y la estabilidad más alta en el tiempo.

The genus Trichoderma and to a lesser extent Purpureocillium, have been studied extensively for their properties as beneficial microorganisms and their effectiveness in disease control. However, biological efficacy is not the only parameter considered when formulating a microorganism; viability, purity and concentration in the formulation are important characteristics to ensure success in the field. The aim of this study was to access different types of formulations (granules, powders, liquids) to record their behavior over time, using the variables viability, concentration and purity to select best formulations based on these parameters. As a result, it was obtained that the bioformulates based on T. asperellum showed greater stability during storage, with dry solid formulations being more stable in comparison with liquid products. In terms of the P. lilacinum formulations, it was observed that the presentation of wettable powders showed the highest concentration and stability over the time., El género Trichoderma y en menor grado Purpureocillium, han sido estudiados ampliamente por sus propiedades como microorganismos benéficos y su eficacia en el control de enfermedades. Sin embargo, la eficacia biológica, no es el único parámetro que se considera al momento de formular un microorganismo; la viabilidad, la pureza y la concentración en la formulación, son características importantes para asegurar el éxito en campo. El propósito de este estudio fue probar distintos tipos de formulaciones (gránulos, polvos, líquidos) registrar su comportamiento en el tiempo, utilizando las variables viabilidad, concentración y pureza para seleccionar las mejores formulaciones en función de estos parámetros. Como resultado se obtuvo que los bioformulados a base de T. asperellum presentaron mayor estabilidad durante el almacenamiento, siendo más estables las formulaciones sólidas secas en comparación con los productos líquidos. En los formulados para P. lilacinum, se observó que la presentación de polvos mojables mostró la concentración y la estabilidad más alta en el tiempo.

espanolCopidosoma sp. (Hymenoptera: Encyrtidae), Lyxophaga sp. (Diptera: Tachinidae), Bracon sp. (Hymenoptera: Braconidae) y Chelonus sp. (Hymenoptera: Braconidae) son reportados por primera vez infectando pupas del barrenador del fruto Neoleucinodes elegantalis (Guenee) (Lepidoptera: Crambidae) de Solanum quitoense and Solanum betaceum en Ecuador. Identificandose enemigos naturales en Ecuador para incorporarlos en estrategias de control biologico sustentable para un manejo integrado de N. elegantalis en cultivos fruticolas. EnglishCopidosoma sp. (Hymenoptera: Encyrtidae), Lyxophaga sp. (Diptera: Tachinidae), Bracon sp. (Hymenoptera: Braconidae) and Chelonus sp. (Hymenoptera: Braconidae) are reported for the first time infecting pupae of the fruit borer Neoleucinodes elegan-talis (Guenee) (Lepidoptera: Crambidae) from Solanum quitoense and Solanum betaceum in Ecuador. Determining the natural enemies in Ecuador useful in sustainable biological control strategies for integrated management of N. elegantalis in fruit crops.

Mandarin (Citrus reticulata) is an economically important fruit for farmers of the inter-Andean valleys of Ecuador, South America. Insectinfested fruits were sampled in the locality of Perucho (Pichincha Province). The larvae obtained from the interior of the fruit were cultured in insect cages to obtain adults. Morphological observations of characteristics of the larval stage, and male and female genitalia at the adult stage confirmed the taxonomic description of the species Gynmandrosoma aurantianum (Lima) (Lepidoptera: Tortricidae). According to our knowledge, this is the first report of mandarin being infested by G. aurantianum in Ecuador.

En el cultivo de naranjilla y tomate de árbol, las arvenses presentes pueden ser hospederas de insectos parasitoides que permiten un control biológico natural de plagas. En este estudio se muestreó especies arvenses en las localidades de El Chaco (Napo) y Río Negro (Tungurahua) donde las familias encontradas mayoritariamente fueron Asteraceae, Poaceae y Cyperaceae.