Centro de Investigación y Tecnología Agroalimentaria de Aragón
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Occurrence and Behavior Analysis of Duponchelia fovealis on Strawberry Plants: Insights for Integrated Pest Management
Full text linkThe European pepper moth, Duponchelia fovealis (Lepidoptera: Crambidae), is a key pest to strawberries in America and Europe. Understanding its behavior in the field can support integrated management strategies. In this work, field surveys were conducted to confirm the presence of this pest in commercial areas within the State of Paraná (Brazil) and to determine on which plant organ it prevailed. Semi-field experiments evaluated oviposition preference as a function of strawberry cultivar. Based on pest behavior, insecticide distribution was assessed following conventional field applications. Our results determined that D. fovealis spread within a 400 km radius from the site in which it was first recorded in Paraná, and the infested area reached 68.2% by the end of the survey. This species concentrated on basal leaves and crowns, where more than 90% of the larvae were collected. Moreover, the number of eggs per plant was significantly higher in the ‘Albion’ cultivar. The sprayed insecticide remained in the upper and middle thirds of the strawberry plant canopy, not reaching the organs where D. fovealis larvae were mainly detected. This study provides useful information on the cryptic habit of this pest that may help in designing efficient monitoring and control strategies.This research was partially funded by the Brazilian Federal Agency for Support and Evaluation of Graduate Education (CAPES) grant numbers 88887.818356/2023-00 (awarded to Rodrimar
Barboza Gonçalves) and the Brazilian Council for Scientific and Technological Development (CNPq)
grant numbers 314625/2023-2 (awarded to Maria Aparecida Cassilha Zawadneak). The APC was
partially funded by discount vouchers awarded to José Manuel Mirás-Avalos, Alex Sandro Poltronieri,
and Maria Aparecida Cassilha Zawadneak.European pepper mothoviposition preferencecryptic habitpest spatial distributioncanopy spraying limitations;integrated pest managementFragaria × ananassaPublishe
Informe de las jornadas técnicas - Proyecto GESTES: Seguimiento de poblaciones silvestres recolectadas de árnica y genciana y metodología con drones (2-3 de julio / Ascou-Pailhères, France)
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Revisiting the Axelrod’s Hypothesis: What is the Origin of the Evergreen Sclerophyllous Oaks in the Northern Hemisphere?
Full text linkAxelrod proposed a hypothesis to explain the origin and evolution of the evergreen sclerophyllous
flora in the Northern Hemisphere, suggesting an insitu differentiation of clades at low-mid latitudes
during the Cenozoic. This hypothesis highlights a continuous belt of sclerophyllous vegetation that was
fragmented over time due to tectonic movements and climatic changes, including cooling and drying.
The genus Quercus exhibits numerous sclerophyllous species, which reach their highest diversity in the
latitudes he identified. However, the evolutionary histories of the two subgenera within Quercus-the New
World and Old-World clades-show distinct patterns. This review examines whether Axelrod’s hypothesis
holds true for Quercus by synthesizing recent molecular phylogenies, fossil records, and biogeographic analyses. Findings reveal that while Old World oaks largely align with Axelrod’s hypothesis, the recent diversification of the tropical NewWorld oaks challenge the framework he proposed.This research was supported by Grant PID2022-136478OBC32 funded by MICIU/AEI/10.13039/501100011033, by “ERDF
A way of making Europe”, by grant CNS2022-136156 funded by
MCIN/AEI/10.13039/501100011033 and European Union Next
Generation EU/PRTR, and by Gobierno de Aragón S74_23R research
group. The work of Rubén Martín-Sánchez was supported by a PhD
Gobierno de Aragón scholarship.Publishe
Red AgriFoodTe Red de conocimiento e innovación agroalimentaria (AKIS) de Teruel
Full text linkEste proyecto está financiado por el Gobierno de Aragón, a través del
fondo de inversiones de Teruel (año 2022), con participación del Gobierno
de España (Ministerio de Política Territorial
Bioactive Sesquiterpenoids from Santolina chamaecyparissus L. Flowers: Chemical Profiling and Antifungal Activity Against Neocosmospora Species
Full text linkSantolina chamaecyparissus L. (cotton-lavender) is receiving increasing attention due to its potential for modern medicine and is considered both a functional food and nutraceutical. In this work, the phytochemical profile of its flower hydromethanolic extract was investigated by gas chromatography–mass spectrometry, and its applications as a biorational for crop protection were explored against Neocosmospora spp., both in vitro and in planta. The phytochemical profiling analysis identified several terpene groups. Among sesquiterpenoids, which constituted the major fraction (50.4%), compounds featuring cedrane skeleton (8-cedren-13-ol), aromadendrene skeleton (such as (?)-spathulenol, ledol, alloaromadendrene oxide, epiglobulol, and alloaromadendrene), hydroazulene skeleton (ledene oxide, isoledene, and 1,2,3,3a,8,8a-hexahydro-2,2,8-trimethyl-,(3a?,8?,8a?)-5,6-azulenedimethanol), or copaane skeleton (cis-?-copaene-8-ol) were predominant. Additional sesquiterpenoids included longiborneol and longifolene. The monoterpenoid fraction (1.51%) was represented by eucalyptol, (+)-4-carene, endoborneol, and 7-norbornenol. In vitro tests against N. falciformis and N. keratoplastica, two emerging soil phytopathogens, resulted in effective concentration EC90 values of 984.4 and 728.6 ?g·mL?1, respectively. A higher dose (3000 ?g·mL?1) was nonetheless required to achieve full protection in the in planta tests conducted on zucchini (Cucurbita pepo L.) cv. ‘Diamant F1’ and tomato (Solanum lycopersicum L.) cv. ‘Optima F1’ plants inoculated with N. falciformis by root dipping. The reported data indicate an antimicrobial activity comparable to that of fosetyl-Al and higher than that of azoxystrobin conventional fungicides, thus making the flower extract a promising bioactive product for organic farming and expanding S. chamaecyparissus potential applications.This research was funded by Junta de Castilla y León under project VA148P23, with FEDER co-funding.aromadendrane skeletonbiorational pesticidescotton-lavenderhydroazulene frameworktomatozucchiniPublishe
Influence of the FecX(R) Allele in Heterozygous Ewes on Follicular Population and Outcomes of IVP and ET using LOPU-Derived Oocytes
Full text linkContents Ewes heterozygous for the FecX(R) allele (R+) in the bone morphogenetic protein 15 (BMP15) gene display increased ovulation rate and prolificacy. Besides this phenotypic advantage, the influence of the FecX(R) allele on follicle number and size, oocyte competence and in vitro production (IVP) remains undefined. With these aims, 8 R+ and 8 wild-type (++) ewes were subjected to 2 laparoscopic ovum pick-up (LOPU) trials (four sessions per trial; two with and two without FSH) and subsequent IVP and fresh embryo transfer. All follicles >3mm were punctured (n=1673). Genotype did not significantly affect the number of punctured follicles per ewe and session (10.4 and 10.2 in R+ and ++ untreated ewes, 17.4 and 14.3 in R+ and ++ FSH-treated ewes, respectively), but follicular diameter of R+ ewes was significantly reduced compared with ++ ewes (-0.2mm in untreated and -0.8mm in FSH-treated ewes; p<0.01). R+ ewes showed higher recovery rate and increased numbers of total and suitable cumulus-oocyte complexes for in vitro maturation (IVM). Similar rates of day 8 blastocysts were observed in R+ (36.1%, 147/407) and ++ (32.6%, 100/307) ewes, but the final output of day 8 blastocysts per ewe and session was higher in R+ ewes (+0.75; p<0.005), without differences in survival rate at birth of the transferred embryos (40.4%, 21/52 vs 36.4%, 16/44, respectively). In conclusion, a higher number of oocytes proven to be competent for in vitro development and embryo survival after transfer are recovered from R+ ewes, despite the lower mean size of their follicles at puncture.This work was supported by Mº Ciencia e Innovacion (TRACE PET-
2008-0076 project) and INIA (grant for B. Lahoz).Unpublishe
Utilisation des instruments économiques pour réduire l’épuisement des eaux souterraines dans le contexte du changement climatique : cas de l’aquifère de Mahdia-Ksour Essef en Tunisie
Full text linkSustainable management of aquifers in arid and semi-arid regions is crucial to ensure socio-environmental sustainability. Groundwater extraction regulation can be implemented through various instruments. Hydro-economic modeling methods offer significant insights which help to evaluate these instruments for effective groundwater regulation. Nonetheless, regulators can leverage the information generated by hydro-economic models to enhance their decision-making processes related to water allocation. This study evaluates the impact of water management instruments such as quotas, environmental taxes, and the quota-tax system on the sustainability of the Mahdia-Ksour Essef aquifer and the local economy, while also considering future climate projections, using hydro-economic modeling. By exploring various water management scenarios, the study offers strategic insights for enhancing resource allocation. The policies of quotas, adjusted according to natural recharge, as well as taxes and combined policies (quota-tax system) are examined and compared to the Business As Usual (BAU) scenario. The results show that policies based on quotas (only quotas and quota-taxes) allow for a faster replenishment of the aquifer and generate total revenues after taxes that are higher than those before taxes. For example, under the most pessimistic climate change scenario, a preservation quota for future generations could increase the actual aquifer level by 1.69 meters at the end of the simulation period. These policies could influence agricultural revenue by promoting more profitable and drought-resistant crops, such as olives and almonds. This study highlights the effectiveness of hydro-economic models as optimal approaches for evaluating groundwater management. Thus, it contributes to guiding policymakers toward strategic choices that promote sustainability and efficiency, particularly in the complex context of climate change and groundwater resource overexploitation.La gestion durable des aquifères dans les régions arides et semi-arides est cruciale pour assurer la durabilité socio-environnementale. La régulation des prélèvements d’eau souterraine peut être réalisée à travers plusieurs instruments. La modélisation hydro-économique fournit des perspectives pour l’analyse de l’efficacité de ces instruments en vue d’une gestion efficace des ressources en eau. En effet, ces modèles offrent aux décideurs des informations importantes qui peuvent les aider à optimiser leurs décisions en matière d’allocation de l’eau. Cette étude évalue l’impact des instruments économiques tels que les quotas, la taxe environnementale et le système quota-taxe, sur la durabilité de l’aquifère Mahdia-Ksour Essef ainsi que sur l’économie locale, tout en intégrant les projections climatiques futures grâce à la modélisation hydro-économique. En explorant divers scénarios de gestion de l’eau, l’étude fournit des recommandations pour améliorer l’allocation des ressources. Les politiques de quotas, ajustés en fonction de la recharge naturelle, ainsi que les taxes et le système quota-taxe sont examinés et comparés au scénario de statu quo. Les résultats montrent que les politiques basées sur les quotas permettent une reconstitution plus rapide de l’aquifère et génèrent des revenus totaux après taxes supérieurs à ceux avant taxes. Par exemple, sous le scénario de changement climatique le plus pessimiste, le quota de préservation de la ressource en eau pour les générations futures pourrait augmenter le niveau de l’aquifère à la fin de la période de simulation de 1,69 m. Ces politiques pourraient influencer les revenus agricoles, en favorisant des cultures plus rentables et résilientes à la sécheresse, telles que les olives et les amandes. Cette étude souligne l’efficacité des modèles hydro-économiques en tant qu’approches pour évaluer la gestion des eaux souterraines. Ainsi, elle oriente les décideurs vers des choix stratégiques favorisant la durabilité et l’efficacité, particulièrement dans un contexte de changement climatique et de surexploitation des ressources en eau.Le financement de cette étude a été assuré par une bourse d’alternance du Ministère de l’Enseignement Supérieur et de la Recherche Scientifique de la Tunisie.surexploitationmodélisation hydro-économiquesquota-taxechangement climatiqueMahdiaoverexploitationhydro-economic modellingquota-taxeclimate changeMahdiaPublishe
