scholarly journals DINÂMICA POPULACIONAL DO Metamasius hemipterus E Cosmopolites sordidus EM CULTIVO DE Musa sp., NA CIDADE DE SINOP-MT

Nativa ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. 133
Author(s):  
Janaina De Nadai Corassa ◽  
Ivone Beatryz Dos Santos ◽  
Tamires Silva Duarte

A espécie Metamasius hemipterus (Linnaeus, 1758) (Coleoptera: Curculionidae), recentemente vêm sendo associada a danos em pseudocaules de bananeira, assim como a coleobroca Cosmopolites sordidus (Germar, 1824) (Coleoptera: Curculionidae), praga-chave de bananeira, devido aos danos diretos e indiretos que resultam em queda de produtividade e rentabilidade ao produtor. O monitoramento da população destes insetos é de grande relevância no momento da tomada de decisão do manejo de pragas da cultura.  Assim, objetivou-se com este estudo monitorar a dinâmica populacional de C. sordidus e M. hemipterus em plantio comercial de banana cv. Nanicão. Para monitoramento das espécies-praga, armadilhas do tipo pitfall modificadas iscadas com feromônio de agregação sintético e toletes de cana-de-açúcar foram distribuídas para captura de curculionídeos praga, no período de maio de 2012 a abril de 2013. Os dados avaliados mostraram que a frequência de captura de C. sordidus durante o período do experimento apresentou variação na densidade populacional do inseto nas duas épocas do ano, correspondentes as épocas de chuva e seca. A dinâmica populacional de C. sordidus, foi influenciada positivamente pela precipitação pluviométrica, apresentando maiores níveis populacional na época chuvosa, com picos nos meses de novembro de 2012, janeiro e fevereiro de 2013. Em relação a M. hemipterus observou-se que a população do inseto não sofreu qualquer influência de variáveis climáticas.Palavras-chave: monitoramento, moleque-da-bananeira, broca-rajada. POPULATION DYNAMICS OF Metamasius hemipterus AND Cosmopolites sordidus, IN CULTIVATION OF Musa sp, IN THE CITY OF SINOP-MT ABSTRACT: The specie Metamasius hemipterus (Linnaeus, 1758) (Coleoptera: Curculionidae) has recently been associated with damage to banana pseudoculars, as well as the Coleobroca Cosmopolites sordidus (Germar, 1824) (Coleoptera: Curculionidae), a key plague of banana because the direct and indirect damages that result in a fall in productivity and profitability to the producer. The monitoring of the population of these insects is of great relevance at the moment of the decision making of the pest management of the crop. The objective with this study was to monitor the populational dynamics of C. sordidus and M. hemipterus in commercial plantation of banana cv. Nanicão. Modified pitfall-baited pitfalls with synthetic aggregation pheromone and sugarcane rods were distributed to catch curcumin curculionídeos from May 2012 to April 2013. The data evaluated showed that the frequency of capture of C. sordidus during the experiment period showed variation in the population density of the insect in the two seasons of the year, corresponding to rainy and dry seasons. The population dynamics of C. sordidus were positively influenced by rainfall, presenting higher population levels in the rainy season, with peaks in November 2012, January and February of 2013. In relation to M. hemipterus, it was observed that the population of the insect was not influenced by climatic variables.Keywords: monitoring, banana weevil, West Indian sugarcane borer. 

2012 ◽  
pp. 199-204
Author(s):  
D.J.H. Lopes ◽  
M.L. Ornelas ◽  
M. Filipe ◽  
R.M.S. Pimentel ◽  
J.T.O. Martins ◽  
...  

2012 ◽  
Vol 102 (5) ◽  
pp. 583-588 ◽  
Author(s):  
P.-F. Duyck ◽  
E. Dortel ◽  
F. Vinatier ◽  
E. Gaujoux ◽  
D. Carval ◽  
...  

AbstractUnderstanding how the population dynamics of insect pests are affected by environmental factors and agricultural practices is important for pest management. To investigate how the abundance of the banana weevil, Cosmopolites sordidus (Coleoptera: Curculionidae), is related to environmental factors and the length of the fallow period in Martinique, we developed an extensive data set (18,130 observations of weevil abundance obtained with pheromone traps plus associated environmental data) and analysed it with generalized mixed-effects models.At the island scale, C. sordidus abundance was positively related to mean temperature and negatively related to mean rainfall but was not related to soil type. The number of insects trapped was highest during the driest months of the year. Abundance of C. sordidus decreased as the duration of the preceding fallow period increased.The latter finding is inconsistent with the view that fallow-generated decomposing banana tissue is an important resource for larvae that leads to an increase in the pest population. The results are consistent with the view that fallows, in association with pheromone traps, are effective for the control of the banana weevil.


2018 ◽  
Vol 9 (1) ◽  
pp. 59-66
Author(s):  
Zsuzsanna Gödör ◽  
Georgina Szabó

Abstract As they say, money can’t buy happiness. However, the lack of it can make people’s lives much harder. From the moment we open our first bank account, we have to make lots of financial decisions in our life. Should I save some money or should I spend it? Is it a good idea to ask for a loan? How to invest my money? When we make such decisions, unfortunately we sometimes make mistakes, too. In this study, we selected seven common decision making biases - anchoring and adjustment, overconfidence, high optimism, the law of small numbers, framing effect, disposition effect and gambler’s fallacy – and tested them on the Hungarian population via an online survey. In the focus of our study was the question whether the presence of economic knowledge helps people make better decisions? The decision making biases found in literature mostly appeared in the sample as well. It proves that people do apply them when making decisions and in certain cases this could result in serious and costly errors. That’s why it would be absolutely important for people to learn about them, thus increasing their awareness and attention when making decisions. Furthermore, in our research we did find some connection between decisions and the knowledge of economics, people with some knowledge of economics opted for the better solution in bigger proportion


2012 ◽  
pp. 66-80
Author(s):  
Michał Mrozowicki

Michel Butor, born in 1926, one of the leaders of the French New Novel movement, has written only four novels between 1954 and 1960. The most famous of them is La Modification (Second thoughts), published in 1957. The author of the paper analyzes two other Butor’s novels: L’Emploi du temps (Passing time) – 1956, and Degrés (Degrees) – 1960. The theme of absence is crucial in both of them. In the former, the novel, presented as the diary of Jacques Revel, a young Frenchman spending a year in Bleston (a fictitious English city vaguely similar to Manchester), describes the narrator’s struggle to survive in a double – spatial and temporal – labyrinth. The first of them, formed by Bleston’s streets, squares and parks, is symbolized by the City plan. During his one year sojourn in the city, using its plan, Revel learns patiently how to move in its different districts, and in its strange labyrinth – strange because devoid any centre – that at the end stops annoying him. The other, the temporal one, symbolized by the diary itself, the labyrinth of the human memory, discovered by the narrator rather lately, somewhere in the middle of the year passed in Bleston, becomes, by contrast, more and more dense and complex, which is reflected by an increasinly complex narration used to describe the past. However, at the moment Revel is leaving the city, he is still unable to recall and to describe the events of the 29th of February 1952. This gap, this absence, symbolizes his defeat as the narrator, and, in the same time, the human memory’s limits. In Degrees temporal and spatial structures are also very important. This time round, however, the problems of the narration itself, become predominant. Considered from this point of view, the novel announces Gerard Genette’s work Narrative Discourse and his theoretical discussion of two narratological categories: narrative voice and narrative mode. Having transgressed his narrative competences, Pierre Vernier, the narrator of the first and the second parts of the novel, who, taking as a starting point, a complete account of one hour at school, tries to describe the whole world and various aspects of the human civilization for the benefit of his nephew, Pierre Eller, must fail and disappear, as the narrator, from the third part, which is narrated by another narrator, less audacious and more credible.


2019 ◽  
Vol 26 (23) ◽  
pp. 4403-4434 ◽  
Author(s):  
Susimaire Pedersoli Mantoani ◽  
Peterson de Andrade ◽  
Talita Perez Cantuaria Chierrito ◽  
Andreza Silva Figueredo ◽  
Ivone Carvalho

Neglected Diseases (NDs) affect million of people, especially the poorest population around the world. Several efforts to an effective treatment have proved insufficient at the moment. In this context, triazole derivatives have shown great relevance in medicinal chemistry due to a wide range of biological activities. This review aims to describe some of the most relevant and recent research focused on 1,2,3- and 1,2,4-triazolebased molecules targeting four expressive NDs: Chagas disease, Malaria, Tuberculosis and Leishmaniasis.


2021 ◽  
pp. 239965442110025
Author(s):  
Claire Hancock

This paper questions the ‘seeing like a city’ vs. ‘seeing like a state’ opposition through a detailed discussion of urban politics in the city of Paris, France, a prime example of the ways in which the national remains a driving dimension of city life. This claim is examined by a consideration of the shortcomings of Paris’s recent and timid commitment local democracy, lacking recognition of the diversity of its citizens, and the ways in which the inclusion of more women in decision-making arenas has failed to advance the ‘feminization of politics’. A common factor in these defining features of the Hidalgo administration seems to be the prevalence of ‘femonationalism’ and its influence over municipal policy-making.


Author(s):  
Eli Auslender

AbstractThis paper will explore a model of best practice, the Leverkusen Model, as well as its impact on both the city and the refugees it serves by utilising key stakeholder interviews, civil servants, non-profits, and Syrian refugees living in Leverkusen. The core argument to be presented here is that the dynamic fluidity of the Leverkusen Model, where three bodies (government, Caritas, and the Refugee Council) collaborate to manage the governance responsibilities, allows for more expedited refugee integration into society. This paper utilises an analytical model of multi-level governance to demonstrate its functional processes and show why it can be considered a model of best practice. Started in 2002, the Leverkusen Model of refugee housing has not only saved the city thousands of euros per year in costs associated with refugee housing, but has aided in the cultivation of a very direct, fluid connection between government, civil society, and the refugees themselves. Leverkusen employs a different and novel governance structure of housing for refugees: with direct consultations with Caritas, the largest non-profit in Germany, as well as others, refugees who arrive in Leverkusen are allowed to search for private, decentralised housing from the moment they arrive, regardless of protection status granted by the German government. This paper fills a gap in the existing literature by addressing the adaptation of multi-level governance and collaborative governance in local refugee housing and integration management.


2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Charles K. Twesigye ◽  
Kenneth Ssekatawa ◽  
Andrew Kiggundu ◽  
Wilberforce Tushemereirwe ◽  
Enock Matovu

Sign in / Sign up

Export Citation Format

Share Document