901 documents found, page 1 of 91
Trioza erytreae (Del Guercio, 1918) and the Interaction with Its Hosts: A Review
Magalhães, Tomás; Duarte, Amílcar; Pereira, J.A.; Marques, Natália T.The cultivation of citrus in the Mediterranean region is of considerable economic importance. The viability of this industry is contingent upon a number of factors, with adequate phytosanitary management being of particular significance. During the last decade, the geographical range of the invasive psyllid, Trioza erytreae (Del Guercio, 1918), has expanded to the mainland territories of Portugal and Spain. Tri...
Application of the FTIR technique as a non‐invasive tool to discriminate Portug...
Lamas, Sandra; Ruano, Daniela Filipa Magalhães; Dias, Francisco; Barreiro, M.F.; Pereira, J.A.; Peres, António M.; Rodrigues, NunoThree Portuguese olive oils with PDO (‘Azeite do Alentejo Interior’, ‘Azeites da Beira Interior’ and ‘Azeite de Trás-os-Montes’) were studied considering their physicochemical quality, antioxidant capacity, oxidative stability, total phenols content, gustatory sensory sensations and Fourier transform infrared (FTIR) spectra. All oils fulfilled the legal thresholds of EVOOs and the PDO's specifications. Olive oi...
Ground-cover vegetation composition shapes the abundance of Sphaerophoria scrip...
Madureira, Marta; Rodrigues, Isabel; Pereira, J.A.The ground-cover vegetation, commonly found in olive groves, provides shelter and vital floral resources for syrphids. Such resources can contribute to syrphids’ growth, development, reproduction, and survival, allowing them to maximize their function as natural pest enemies, pollinators, and decomposers of organic matter. Therefore, identifying the flowering plant families driving the abundance of Sphaerophori...
Spatial distribution pattern of male adults of Phyllocnistis citrella Stainton ...
Costa, Jaciley Bragança; Madureira, Marta; Pereira, J.A.; Rodrigues, IsabelPhyllocnistis citrella Stainton, commonly known as the citrus leafminer, threatens global citrus production. This study focuses on elucidating the population dynamics and spatial distribution of P. citrella in lemon orchards located in Northern Portugal. From May to December, using delta traps with sexual pheromones, the levels of the adult population were monitored, and aggregation indices were calculated. Fiv...
Effect of the cleaning and disinfection methods on the hygienic conditions of f...
Martins, Fátima; Rodrigues, Nuno; Pereira, J.A.; Baptista, Paula; Ramalhosa, ElsaThis study aimed to evaluate and identify the microbial community attached to the surfaces of fermenter tanks used in table olive Negrinha de Freixo cultivar processing through molecular analysis and verify if the cleaning/ disinfection was done correctly. Four fermentation tanks previously used in table olive processing were sampled at three different inside areas: upper, middle, and lower. Before sampling, fo...
Does the superfluous killing exhibited by spiders mask the functional response ...
López‐Mercadal, Júlia; Benhadi-Marín, Jacinto; Rodrigues, Isabel; Miranda, Miguel Ángel; Pereira, J.A.The meadow spittlebug Philaenus spumarius L. (Hemiptera: Aphrophoridae) is a xylem-sap feeder and the most abundant and widespread vector of Xylella fastidiosa (Xanthomonadales: Xanthomonadaceae) throughout Europe. Control strategies for the disease are based on containment and eradication measures regulated by the European Union. Within the context of biological control, the use of natural enemies aims at limi...
Exogenous systemin peptide treatment in olive alters Bactrocera oleae ovipositi...
Sánchez, Luiza; Cunha, Ana E.; Rodrigues, Nuno; Pereira, J.A.; Baptista, PaulaThe olive fruit fly, Bactrocera oleae (Rossi), is a key pest of the olive crop, whose control relies mostly on the use of insecticides. Plant peptides may represent a more environmentally-friendly tool to manage olive fly, due to their recognized role to activate and/or prime plant defence responses against pests. In this work, behavioural experiments (no-choice and two-choice) and analysis of volatile compound...
Almond By-Products Substrates as Sustainable Amendments for Green Bean Cultivation
Silva, Vânia; Oliveira, Ivo; Pereira, J.A.; Gonçalves, BertaAlmond processing generates a high quantity of by-products, presenting the untapped potential for alternative applications and improved sustainability in production. This study aimed to evaluate whether the incorporation of almond by-products (hulls/shells) can improve the biochemical characteristics of green bean pods when used as an alternative to traditional growing media in green bean plants. Four substrate...
Diversity, Composition, and Specificity of the Philaenus spumarius Bacteriome
Cameirão, Cristina; Costa, Daniela; Rufino, José; Pereira, J.A.; Lino-Neto, Teresa; Baptista, PaulaPhilaenus spumarius (Linnaeus, 1758) (Hemiptera, Aphrophoridae) was recently classified as a pest due to its ability to act as a vector of the phytopathogen Xylella fastidiosa. This insect has been reported to harbour several symbiotic bacteria that play essential roles in P. spumarius health and fitness. However, the factors driving bacterial assemblages remain largely unexplored. Here, the bacteriome associat...
Effects of Summer Water Deficit Stress on Olive Fruits and Oil Quality
Araújo, Márcia; Rodrigues, Nuno; Santos, Conceição; Pinto, Diana; Pereira, J.A.; Silva, Artur; Dias, Maria CelesteThe Mediterranean basin is the leading worldwide region for olive production. Extreme weather is increasingly frequent in this region, and how these climate extremes will affect olive products and quality remains unknown. We aim to study the effects of the water deficit stress, which occurred in the summer of 2017, on olive fruit and oil quality from a 30-year-old orchard. Fruits from olive trees standing on (i...