Culex pipiens is the most cosmopolitan mosquito of Pipiens Assemblage. By studying nature interactions between this species and microorganisms common to its breeding environment we can unravel important pitfalls encountered during development. We tested survival rate larval stages, pupae adults a Cx. colony exposed variety in laboratory conditions assessed transmission offspring (F1) by those organisms that secured development up adulthood. Three complementary experiments were designed to:...

Fil: Diaz Nieto, Leonardo Martin. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina Coordinacion Administrativa Parque Centenario. Instituto Investigacion en Biociencias Agricolas Ambientales. Grupo Vinculado al Centro Estudios la Biodiversidad Biotecnologia Mar del Plata- INBA. Fundacion para Biologicas Aplicadas; Argentina

Abstract In an attempt to evaluate the susceptibility of mosquito Culex quinquefasciatus bacterial agents, a population naturally infected with Wolbachia pipientis w PipSJ native strain was tested against action three mosquitocides, Bacillus thuringiensis subsp. israelensis , wiedmannii biovar and Lysinibacillus sphaericus. Tests were carried out on larvae without (controls). Cx. proved be more resistant pathogenic mosquitocidal strains. Additionally, fully characterised using...

BackgroundAedes (Stegomyia) aegypti (Linnaeus) (Diptera: Culicidae) is the principal vector of yellow fever virus, five dengue virus serotypes (DENV-1 to DENV-5), chikungunya Zika and several types encephalitis [1][2][3].The behavior this species synanthropic anthropophilic, being culicid most closely associated with human populations [4].The incidence has increased 30-fold over last 50 years; according World Health Organization, up 50-100 million infections occur each year in 100 endemic...

Although Mar del Plata is the most important city on Atlantic coast of Argentina, mosquitoes inhabiting such area are almost uncharacterized. To increase our knowledge in their distribution, we sampled specimens natural populations. After morphological identification based taxonomic keys, sequences DNA from small ribosomal subunit (18S rDNA) and cytochrome c oxidase I (COI) genes were obtained native species phylogenetic analysis these done. Fourteen genera Uranotaenia, Culex, Ochlerotatus...

Ceratitis capitata is the most serious agricultural pest in Argentinean fruit-growing regions. The use of baited traps for Medfly control an expanding and increasingly successful integrated management strategy. high cost attractants one main limitations on either a massive scale or small-scale control. This study aimed to evaluate advantages disadvantages using natural fruit juice-based lures adult monitoring at orchard level irrigated valley. capture with standard protein attractant was...

Trinta e dois cordeiros (¹/2 Texel + ¼ Bergamácia Corriedale), 16 machos inteiros fêmeas, foram alimentados durante 71 dias com dietas isoenergéticas (72% NDT), variando os níveis protéicos (12, 16, 20 24 % PB) em baias individuais, avaliação de carcaça após abate. O rendimento verdadeiro médio da foi 54%, enquanto o comercial 48%. Verificou-se que entre 12 24% não afetaram peso quente fria; carcaça, índice compacidade do pernil, bem como a condição corporal, conformação, cobertura gordura,...

An investigation was carried out to study some aspects related with the feeding habit of Leporinus macrocephalus (Characiformes, Anostomidae) (piavuçu) post-larvae. Eighteen amianthus cement tanks 1m3 capacity were previously fertilized and later each received 400 Data analyzed by model in a completely randomized design, three treatments six replications. Treatments divided diets based on animal protein (A), vegetable (B) natural (C). Results showed that larvae took advantage all available...

The experiment was carried out during summer and winter seasons at Centro de Pesquisa do Arenito (Arenito Research Center) from Universidade Estadual Maringá (State University of Maringá) in Cidade Gaúcha, Paraná, Brazil. Sixty ½ Bergamacia Corriedale ewes were distributed randomly, allocated three plots one hectare each, with grasses different growth habits: Paspalum notatum, Cynodon dactylon Panicum maximum. objective this research to evaluate the behavior infective larvae superior...

ABSTRACT Larvivorous fish have been studied as potential biocontrol agents of mosquito larvae and pupae through their trophic interactions. The use native fish for control may benefits both aquatic biodiversity human health. Evaluating the effect vegetation on predatory efficacy is fundamental to determine if this species can be used a agent. With aim evaluating Jenynsia multidentata (Jenyns, 1842) agent Culex pipiens Linnaeus, 1758, we tested its capacity in presence or absence under...

The minimum fat richness of avocados necessary for marketing the fruit is 8%, although after vegetative maturation values about 20% or more are reached, depending on variety. In period between harvesting, when commercial maturity and full maturation, not only content increased but changes also occur in composition, unsaturated fatty acids increasing while amount saturated decreases.

Chagas disease is a parasitic that affects about 6 million people in the world. There are different routes of transmission and Americas, vector-borne most frequent. In Argentina, main vector Trypanosoma cruzi (etiological agent) vinchuca or bedbug Triatoma infestans, which mainly inhabits rural dwellings. However, recent years, only records vectorial country come from urban area San Juan. This problem represents challenge for local health system, partly due to fact all control strategies...

Chagas disease is caused by the parasite Trypanosoma cruzi. In Argentina, Triatoma infestans its main vector. Its occurrence has been documented in rural areas, although currently also urban areas of Northwest and Cuyo, including San Juan(1,2,3). With aim conducting an ecoepidemiological study setting, a cross-sectional was carried out Villa Roque, Rivadavia Department, Juan, during October 2022. Entomological assessments, sociodemographic social practices surveys were conducted on adult...

We report eight new Culicidae records from San Juan province, Argentina: Anopheles argyritarsis Robineau-Desvoidy, 1827; neomaculipalpus Curry, 1931; Culex acharistus Root, 1927; apicinus Philippi, 1965; maxi Dyar, 1928; quinquefasciatus Say, 1823; saltanensis and Haemagogus spegazzinii Brethes, 1912. The geographic distribution of Aedes aegypti (Linnaeus, 1762), albifasciatus (Macquart, 1838), pseudopunctipennis Theobald, 1901, pipiens Linneaus, 1758, tramazayguesi Duret, 1954, Psorophora...

Este trabajo presenta una aproximacion de corte geografico y estadistico a la problematica del homicidio en ciudad Barranquilla. El estudio se concentra los patrones espaciales difusion fenomeno, asimismo un analisis que correlaciona presencia fuerza publica ciudad, medida por cantidad Comandos Atencion Inmediata (CAI) Policia barrio, con tasa para el periodo 2002-2008, asi como variable espacial control relacionada las zonas alcanzaron mayores tasas promedio ciudad. econometrico confirma...

El avance de la agricultura impone necesidad medir los posibles efectos estas actividades humanas sobre ambientes naturales. Los Tenebrionidae se consideran un buen indicador biológico para tal fin. objetivo central del presente trabajo es comparar ensambles una zona natural médano y transformada en cultivo con el fin de: 1) Ampliar conocimiento las comunidades sistemas médanos Monte; 2) analizar variaciones espacio-temporales abundancia diversidad (alfa beta) entre cultivo; 3) espaciales...