Integrating adverse effect analysis into environmental risk assessment for exotic generalist arthropod biological control agents: a three-tiered framework

Environmental risk assessments (ERAs) are required before utilizing exotic arthropods for biological control (BC). Present ERAs focus on exposure analysis (host/prey range) and have resulted in approval of many specialist exotic biological control agents (BCA). In comparison to specialists, generalist arthropod BCAs (GABCAs) have been considered inherently risky and less used in classical biological control. To safely consider exotic GABCAs, an ERA must include methods for the analysis of potential effects. A panel of 47 experts from 14 countries discussed, in six online forums over 12 months, scientific criteria for an ERA for exotic GABCAs. Using four case studies, a three-tiered ERA comprising Scoping, Screening and Definitive Assessments was developed. The ERA is primarily based on expert consultation, with decision processes in each tier that lead to the approval of the petition or the subsequent tier. In the Scoping Assessment, likelihood of establishment (for augmentative BC), and potential effect(s) are qualitatively assessed. If risks are identified, the Screening Assessment is conducted, in which 19 categories of effects (adverse and beneficial) are quantified. If a risk exceeds the proposed risk threshold in any of these categories, the analysis moves to the Definitive Assessment to identify potential non-target species in the respective category(ies). When at least one potential non-target species is at significant risk, long-term and indirect ecosystem risks must be quantified with actual data or the petition for release can be dismissed or withdrawn. The proposed ERA should contribute to the development of safe pathways for the use of low risk GABCAs

Enfermedad Mínima Residual (EMR) en Leucemia Linfoblástica Aguda pediátrica (LLA). Estudio multicéntrico

En las últimas 4 décadas se profundizó el conocimiento en la cinética de la respuesta temprana al tratamiento en pacientes con Leucemia Linfoblástica Aguda (LLA) para predecir riesgo de recaída1. Sin embargo, 20% de los pacientes que inicialmente responden al tratamiento y morfológicamente no presentan blastos en médula ósea, recidivan durante el tratamiento o luego de la finalizar el mismo.Fil: Soria, Rose Mari. Hospital de Niños Dr. Ricardo Gutiérrez; Argentina.Fil: Agriello, Evangelina. Laboratorio de Especialidades Bioquímicas; Argentina.Fil: Agriello, Evangelina. Hospital Interzonal General Dr. José Penna; Argentina.Fil: Agriello, Evangelina. Grupo Argentino de Tratamiento de la Leucemia Aguda; Argentina.Fil: Gutierrez, María. Hospital de Niños Dr. Ricardo Gutiérrez; Argentina.Fil: Gil, Gimena. Hospital de Niños Dr. Ricardo Gutiérrez; Argentina.Fil: Iommi, María Paula. Laboratorio de Especialidades Bioquímicas; Argentina.Fil: Torreguitart, Federico Andrés. Laboratorio de Especialidades Bioquímicas; Argentina.Fil: Caferri, Horacio. Hospital Interzonal General Dr. José Penna; Argentina.Fil: Cédola, Alejandra. Sanatorio San Lucas; Argentina.Fil: Majek, Elena. Hospital de Niños Dr. Héctor Quintana; Argentina.Fil: Hiramatsu, Elizabeth. Hospital Pediátrico del Niño Jesús; Argentina.Fil: Morell, Daniela. Hospital Pediátrico del Niño Jesús; Argentina.Fil: Rizzi, María Laura. Sanatorio Allende; Argentina.Fil: Rodríguez Cuimbra, Silvia. Hospital Pediátrico Juan Pablo II; Argentina.Fil: Gomel De Baraja, María E. Hospital Pediátrico Juan Pablo II; Argentina.Fil: Cabral Castella, Antonia C. Hospital Pediátrico Juan Pablo II; Argentina.Fil: Pistaccio, Luis. Hospital Interzonal de Agudos Especializado en Pediatría Sor María Ludovica; Argentina.Fil: Schuttemberg, Virginia. Hospital Interzonal de Agudos Especializado en Pediatría Sor María Ludovica; Argentina.Fil: Riccieri, Cecilia.Fil: Solari, Liliana. Hospital Nacional Profesor Alejandro Posadas; Argentina.Fil: Solari, Liliana. Grupo Argentino de Tratamiento de la Leucemia Aguda; Argentina.Fil: Riccieri, Cecilia. Hospital Nacional Profesor Alejandro Posadas; Argentina.Fil: Gaillard, María I. Hospital de Niños Dr. Ricardo Gutiérrez; Argentina.Fil: Gaillard, María I. Grupo Argentino de Tratamiento de la Leucemia Aguda; Argentina.Fil: Ferraro, C. Hospital de Niños Dr. Ricardo Gutiérrez; Argentina.Fil: Hernández, M. Clínica Dr. Matera; Argentina.Fil: Drosovsky, C. Sanatorio San Lucas; Argentina.Hematologí

Relevamiento preliminar de enemigos naturales de trips en flores de malezas en el área hortícola del Gran La Plata

p.139-146Con el objeto de identificar artrópodos que pudieran actuar como enemigos naturales de trips, se evaluaron temporal y espacialmente flores de malezas en el área de producción hortícola de La Plata. Se relevaron semanalmente flores de 58 especies de plantas, y se hallaron enemigos naturales en 22 de ellas. El más frecuente fue Orius insidiosas, principalmente en flores de Compositae com o Carduus acanthoides, Eupatorium inulaefoliumy Dipsacum sativas. También se hallaron algunos ejemplares de los ácaros Phytoseiidae Neoseiulus californicus y Phytoseiulus macropilis

Negative interaction between twospotted spider mites and aphids mediated by feeding damage and honeydew

Among the herbivorous arthropods that feed on strawberry, the most important are the two-spotted spider mite (TSSM), Tetranychus urticae Koch, and several species of aphids. Mites and aphids belong to different guilds that coexist in the field and feed on the undersides of strawberry leaflets. However, the occurrence of large numbers of individuals of both species on the same leaflet is rarely recorded. We hypothesize that negative interactions between TSSM and aphids explain the intraplant distribution of these herbivores. We first examined the spatial coincidence of both herbivores in the field. Under experimental conditions, we then analyzed: (i) the rate of increase of TSSM and the aphid Chaetosiphon fragaefolii (Cockerell), growing individually and together; (ii) the effect of honeydew on TSSM preference; and (iii) the effect of previous strawberry leaflet damage by TSSM on C. fragaefolii preference. The proportion of TSSM that coincided with at least one aphid decreased as the percentage of leaflets with TSSM increased. The spatial coincidence index between aphids and TSSM increased together with the percentage of TSSM-infested leaflets. TSSM showed both a lower rate of increase when they shared the same leaflet with C. fragaefolii and lower fecundity on strawberry discs with honeydew. The rate of increase of C. fragaefolii did not change on co-occupied leaves, but the aphid species moved to the other side of leaflets shared with TSSM. Negative interactions resulting in a tendency for species to avoid each other, such as demonstrated herein, can affect distribution and performance of herbivorous arthropods.Fil: Cédola, C. V.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Gugole Ottaviano, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Brentassi, Maria Eugenia. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Cingolani, Maria Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Greco, N. M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Centro de Estudios Parasitológicos y de Vectores (i); Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentin

Publisher Correction to: Integrating adverse effect analysis into environmental risk assessment for exotic generalist arthropod biological control agents: a three-tiered framework (BioControl, (2021), 66, 1, (113-139), 10.1007/s10526-020-10053-8)

Due to typesetting errors, Table 5 was not displayed correctly in the initial online publication. The original online article has been corrected. © 2020, International Organization for Biological Control (IOBC). Correction to https://doi.org/10.1007/s10526-020-10053-

Publisher Correction to: Integrating adverse effect analysis into environmental risk assessment for exotic generalist arthropod biological control agents: a three-tiered framework (BioControl, (2021), 66, 1, (113-139), 10.1007/s10526-020-10053-8)

Due to typesetting errors, Table 5 was not displayed correctly in the initial online publication. The original online article has been corrected. © 2020, International Organization for Biological Control (IOBC). Correction to https://doi.org/10.1007/s10526-020-10053-