Prefixed to the Memorials is a biographical sketch of the author, extracted from John Livingston's Portraits of eminent Americans now living, New York, ...
0000 - Gale Group | Sabin
Inês Gonçalves de Sousa, Jorge C. Oliveira, António Mexia, Graça Barros, Carina Almeida, Carla Brazinha, Anna Vega, Carla Brites,
Rice (Oryza sativa L.) is a staple food for about half of the world’s population. Therefore, it is important to search for solutions that minimise losses and production costs for producers and ensure food quality and safety for consumers. Improved methods for the detection and monitoring of hidden infestations are useful for adopting infestation control measures. Chemical methods are used to prevent rice losses due to infestations; changing this situation, however, is of the utmost importance, as ...
Tópico(s): Insect Utilization and Effects
2023 - Multidisciplinary Digital Publishing Institute | Foods
Two columns to the page. Relates to affairs in the Austin Colony and contains the colonists' protestations of loyalty to the Mexican Republic and Santa ...
0000 - Gale Group | Sabin
Albasini Caniço, António Mexia, Luisa Santos,
This study aimed to gather information about farmers’ knowledge, perception and management practices of the newly introduced insect pest, the fall armyworm Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Manica province, Mozambique. A total of 200 smallholder farmers with experience in maize cultivation were surveyed using a semi-structured questionnaire. The survey was conducted between May and August 2019 in four districts: Macate, Manica, Sussundenga and Vanduzi. Most farmers were unable ...
Tópico(s): CRISPR and Genetic Engineering
2021 - Pensoft Publishers | NeoBiota
Albasini Caniço, António Mexia, Luisa Santos,
The alien invasive insect pest Spodoptera frugiperda Smith (Lepidoptera: Noctuidae), commonly referred to as fall armyworm (FAW), is causing significant losses to maize production in Africa since its detection in 2016. Despite being the primary insect pest of the main food crop in the country, researchers have concentrated their efforts on methods of control, and there are no published studies on its seasonality which could assist farmers in delivering effective methods of control in periods of heavy ...
Tópico(s): Insect Pest Control Strategies
2020 - Multidisciplinary Digital Publishing Institute | Insects
Albasini Caniço, António Mexia, Luisa Santos,
The alien invasive insect pest Spodoptera frugiperda Smith (Lepidoptera: Noctuidae), commonly referred to as fall armyworm (FAW), is causing significant losses to maize production in Africa since its detection in 2016. As an emergency response, governments in several countries distributed and/or promoted massive use of synthetic insecticides among smallholder farmers to fight FAW. The inappropriate use of synthetic insecticides by non-trained and ill-equipped farmers raises environmental and health ...
Tópico(s): Entomopathogenic Microorganisms in Pest Control
2020 - Multidisciplinary Digital Publishing Institute | Insects
R. Pimentel, David Lopes, António Mexia, John Mumford,
Population dynamics studies are very important for any area-wide control program as they provide detailed knowledge about the relationship of Medfly [Ceratitis capitata (Wiedemann)] life cycle with host availability and abundance. The main goal of this study is to analyse seasonality of C. capitata in Terceira and Sao Jorge Islands (Azores archipelago) using field and laboratory data collected during (2010–2014) CABMEDMAC (MAC/3/A163) project. The results from Sao Jorge Island indicate significantly ...
Tópico(s): Forest Insect Ecology and Management
2017 - Oxford University Press | Journal of Insect Science
María Villa, Sónia A.P. Santos, Jacinto Benhadi‐Marín, António Mexia, Albino Bento, José Alberto Pereira,
Tópico(s): Insect behavior and control techniques
2016 - Springer Science+Business Media | BioControl
María Villa, Sónia A.P. Santos, António Mexia, Albino Bento, José Alberto Pereira,
Spontaneous ground covers comprise ecological infrastructures that may provide food, alternative hosts and shelter for parasitoids in olive groves, thus contributing to biological control of pests. This study investigated the effects of herbicide application, tillage, and conservation of spontaneous ground covers on parasitism of the anthophagous generation of the olive moth, Prays oleae (Bernard). The study was performed in northeast Portugal in 2011 and 2013 in 14 and 15 olive groves, respectively, ...
Tópico(s): Insect Pest Control Strategies
2016 - Elsevier BV | Biological Control
María Villa, Rosalina Marrão, António Mexia, Albino Bento, José Alberto Pereira,
Tópico(s): Insect behavior and control techniques
2016 - Springer Science+Business Media | Journal of Pest Science
María Villa, Sónia A.P. Santos, Rosalina Marrão, Lara A. Pinheiro, José Antonio López Sáez, António Mexia, Albino Bento, José Alberto Pereira,
Tópico(s): Insect behavior and control techniques
2016 - Elsevier BV | Agriculture Ecosystems & Environment
Maite Arrizubieta, Oihane Simón, Luis M. Torres‐Vila, Elisabete Figueiredo, Javier Mendiola, António Mexia, Primitivo Caballero, Trevor Williams,
A binary co-occluded mixture (HearSP1B:LB6) of Helicoverpa armigera single nucleopolyhedrovirus (HearNPV) variants was previously found to be highly pathogenic under laboratory conditions. The insecticidal efficacy and persistence of this mixture were determined in greenhouse and field-grown tomato crops in Spain and Portugal.Concentrations of 10(9) -10(11) occlusion bodies (OBs) L(-1) of HearSP1B:LB6 resulted in 89-100% mortality of larvae on treated tomato plants in growth chambers. In protected tomato ...
Tópico(s): Entomopathogenic Microorganisms in Pest Control
2015 - Wiley | Pest Management Science
Elisabete Figueiredo, Catarina I. Gonçalves, Sónia Duarte, Marcelo Godinho, António Mexia, L. Torres,
Simple Summary:The tomato fruitworm, Helicoverpa armigera, is a key pest of several crops.It can cause particularly extensive damage in crops of processing tomatoes.Risk assessment can be a tedious and costly task if sampling protocols require a large number of plants.Sequential sampling allows sampling of a reduced number of plants when population densities are much lower or much higher than the economic or control threshold.Additionally, for crop protection purposes, sampling for classification ( ...
Tópico(s): Entomological Studies and Ecology
2013 - Multidisciplinary Digital Publishing Institute | Insects
Sílvia Albano, Eva Salvado, Paulo A. V. Borges, António Mexia,
This study was carried out in one of the most important strawberry (Fragaria × ananassa Duch.) pro- ducing regions of Portugal, the Ribatejo, and aims to describe the quantitative component of visits by strawber- ry floral visitors under open field conditions. The main objectives were: (1) to assess the flower-visiting insects of the strawberry crop; (2) to evaluate the percentage of frequency (F) and activity rate (AR) in order to deter- mine an Index of Visitation Rate (I VR ) for the different categories ...
Tópico(s): Horticultural and Viticultural Research
2009 - Firenze University Press | Advances in Horticultural Science
Elisabete Figueiredo, Delia Muñoz, Rosa Murillo, António Mexia, Primitivo Caballero,
Larvae of the tomato fruitworm, Helicoverpa armigera, were surveyed for nucleopolyhedrovirus (NPV) infection (referred to as HearNPV) in three different locations from the Iberian Peninsula: Olivenza and Toledo in Spain and the Oeste region in Portugal. Twenty HearNPV isolates were obtained from single field-collected larval cadavers. Restriction endonuclease (REN) profiles of the collected isolates with BglII and PstI allowed identification of six different H. armigera single-embedded NPV strains ...
Tópico(s): Entomopathogenic Microorganisms in Pest Control
2009 - Elsevier BV | Biological Control
Sílvia Albano, Eva Salvado, Sónia Duarte, António Mexia, Paulo A. V. Borges,
This study was carried out in a strawberry (Fragaria × ananassa Duch.) field located in Ribatejo, Por- tugal, and aims to describe the qualitative component of the visits for three strawberry floral visitors, attaining the best results in a previous work. The main objectives were: (1) to assess the pollination rate (PR) resulting from a single visit of Apis mellifera L., Syrphidae and native bees, and (2) to characterize the foraging behaviour of each of these categories in order to select the potential ...
Tópico(s): Berry genetics and cultivation research
2009 - Firenze University Press | Advances in Horticultural Science
Catarina I. Gonçalves, Martinus E. Huigens, Patrick Verbaarschot, Sónia Duarte, António Mexia, João Tavares,
Minute egg parasitoids of the genus Trichogramma (Hymenoptera; Trichogrammatidae) are promising candidates for biological control of lepidopteran pests in tomato in Portugal. This certainly applies to native Trichogramma strains that have thelytokous reproduction, i.e., produce only daughters. In Trichogramma wasps, thelytoky is mostly induced by the intracellular bacterium Wolbachia. In this study, we carried out a field survey of native Trichogramma species in four locations in Ribatejo, the main ...
Tópico(s): Insect behavior and control techniques
2006 - Elsevier BV | Biological Control
Ana Magro, Manuela Carolino, Margarida M. S. M. Bastos, António Mexia,
The fungistatic activity of six aqueous extracts of plants were tested against Aspergillus candidus, Aspergillus niger, Penicillium sp. and Fusarium culmorum. The plants were, chamomile (Anthemis nobilis L.), cinnamon (Cinnamomum verum J. Presl.), French lavender (Lavandula stoechas L.), garlic (Allium sativum L.), malva (Malva sylvestris L.) and peppermint (Mentha piperita L.). The more concentrated extracts of chamomile and malva inhibited totally the growth of the tested fungi with malva being the ...
Tópico(s): Allelopathy and phytotoxic interactions
2006 - Elsevier BV | Revista Iberoamericana de Micología
Elisabete Figueiredo, Delia Muñoz, A. Escribano, António Mexia, Just M. Vlak, Primitivo Caballero,
Three Nucleopolyhedrovirus (NPVs) originally isolated from Heliothis armigera larvae, collected from Portugal (HearNPV‐PO) and two places in Spain (HearNPV‐SP1 and HearNPV‐SP2), and three previously described NPVs were compared biochemically and biologically. Restriction endonuclease analysis of the virus genome with several enzymes revealed that isolates HearNPV‐SP1 and HearNVP‐SP2 are unique but closely related genotypes which represent two new strains of the NPVs of H. armigera. The DNA fragment ...
Tópico(s): Entomopathogenic Microorganisms in Pest Control
1999 - Wiley | Journal of Applied Entomology
Carlos Frescata, António Mexia,
ABSTRACT In Portugal, strawberries are a key crop for the organic farming market. In 1990 and 1991 Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), the western flower thrips (WFT), was a major pest of strawberries in the Algarve. In 1993, the predator Orius laevigatus (Fieber) (Heteroptera: Anthocoridae), a common naturally occurring species in Portugal, was experimentally released in strawberry plantings. Numbers of thrips per flower were lower in cages where the Orius were released. ...
Tópico(s): Weed Control and Herbicide Applications
1996 - Taylor & Francis | Biological Agriculture & Horticulture
... after it had been privatized. EDP’s President António Mexia was under police investigation due to having led ...
Tópico(s): Innovation Policy and R&D
2019 - Emerald Publishing Limited | The CASE Journal
Sílvia Albano, Madeleine Chagnon, D. de Oliveira, E. Houle, Pierre Thibodeau, António Mexia,
Two experiments were performed in Quebec (Canada), in the field and in a greenhouse, to assess the effectiveness of Apis mellifera L. and Bombus impatiens Cresson (Hymenoptera: Apidae) in transmitting Trichoderma harzianum Rifai, strain T-22, to strawberry flowers from hives-mounted dispensers containing the biofungicide Rootshield ® . The number of Colony Forming Units (CFU) of T. harzianum was determined: (i) on bees exiting from hives-mounted dispensers containing the biofungicide ; (ii) on foragers visiting ...
Tópico(s): Plant pathogens and resistance mechanisms
2009 - Benaki Phytopathological Institute | Hellenic Plant Protection Journal
Maria Otília Carvalho, J. Passos de Carvalho, L. Torres, António Mexia,
Abstract This paper presents sequential sampling plans for classifying the pest status of Lasioderma serricorne (F.) based on complete counts from insects caught in sex pheromone traps in a cigarette factory. The sampling plan used 26 pheromone traps. As the adult population follows the negative binomial distribution, a sequential sampling plan was developed using the sequential probability ratio test (SPRT). Iwao's confidence interval method was also employed to analyse results. The sampling plan ...
Tópico(s): Insect and Arachnid Ecology and Behavior
2005 - Elsevier BV | Journal of Stored Products Research
María Villa, Sónia A.P. Santos, António Mexia, Albino Bento, José Alberto Pereira,
Adult parasitoids need non-host food such as nectar or honeydew for survival and reproduction. In a conservation biological control strategy, the knowledge about non-host feeding of parasitoid species is a key factor to successfully increase their action. The nutritional behavior of Elasmus flabellatus (Fonscolombe) (Hymenoptera: Eulophidae), a major parasitoid of the olive moth, Prays oleae (Bernard) (Lepidoptera: Praydidae), is completely unknown. Survival experiments were performed on two secondary ...
Tópico(s): Plant Parasitism and Resistance
2017 - Springer Science+Business Media | Agronomy for Sustainable Development
R. Pimentel, David Lopes, António Mexia, John Mumford,
Extrapolation from quantitative sampling to the surrounding areas is an essential feature of many aspects of real world applications in pest management decision-making. However, these decisions are only as good as the accuracy of the methods that provided the information. The problem of estimating Mediterranean fruit fly population densities from trap grids is a specific case. The efficiency of three methods to estimate fruit flies trapped per day values for non-sampled areas in Terceira Island ...
Tópico(s): Genetically Modified Organisms Research
2016 - Taylor & Francis | International Journal of Pest Management
Graça Barros, Ana Magro, Carlos Conceição, Olı́via Matos, A. L. M. Barbosa, Margarida M. S. M. Bastos, António Mexia,
Laboratory studies were carried out to evaluate the effects of some essential oils from Laurus nobilis and Mentha pulegium against Sitophilus zeamais on stored maize. The concentrated essential oils at different volumes of 0.5 µL, 1.5 µL, 2.5 µL, 5.0 µL and 10 µL, were poured on filter papers with 2 cm O each. For diluted oils, the fixed volume of 15 µL of different concentrations of 1:150v/v, 1:100 v/v, 1:75 v/v, 1:50 v/v and 1:10 v/v either in methanol or n-hexane were used to impregnate the filter ...
Tópico(s): Insect Resistance and Genetics
2015 - Sociedade de Ciências Agrárias de Portugal | Revista de Ciências Agrárias
R. Pimentel, David Lopes, António Mexia, John Mumford,
The fruit fly Ceratitis capitata Wiedemann is one of the most important threats to the trade of fresh fruits in the world due to its ability to survive in a wide range of hosts and climatic conditions. The main goal of this study is to evaluate if there is any significant relationship between the abundance of wild adults of C. capitata and the spatial characteristics of the location. The ordinary least squares estimation model calculated for each gender cannot provide a satisfactory general explanation ...
Tópico(s): Forest Insect Ecology and Management
2014 - Taylor & Francis | International Journal of Pest Management
C. Mateus, António Mexia, Isabel Duarte, G. Pereira, M. Tavares de Sousa,
ISHS XXVIII International Horticultural Congress on Science and Horticulture for People (IHC2010): International Symposium on Plant Protection EVALUATION OF DAMAGE CAUSED BY BRUCHIDS (COLEOPTERA: BRUCHIDAE) ON PEAS (PISUM SATIVUM L.)
Tópico(s): Insect Pest Control Strategies
2011 - International Society for Horticultural Science | Acta Horticulturae
Marx Leandro, Márcia Oliveira, Catharina Isis Santos de Melo, António Mexia,
During June and July of 1999, a Protea plantation was established in Zambujeira do Mar, in the Southwest of Portugal. The plantation comprised a diversity of species and varieties of Protea, Leucadendron and Leucospermum along with species from different families in the Fynbos. Since then, work has been done in order to define the insect populations affecting the Proteaceae. It is our goal to know the main pests causing damage to the crop and to identify the beneficials present in order to establish ...
Tópico(s): Insect Resistance and Genetics
2003 - International Society for Horticultural Science | Acta Horticulturae
Jorge M. S�nchez Reyes, Mar�a Alcaraz Mexia, Diana Qui�ones Tapia, José Antonio Aramburu,
Tópico(s): Bone Tumor Diagnosis and Treatments
1997 - Springer Science+Business Media | Skeletal Radiology