Se evaluó in vitro el efecto larvicida del extracto etanólico de Gliricidia sepium (Cacahuananche) sobre larvas tercer estadio Aedes aegypti y albopictus. Las variables estudio fueron: mortalidad instar con concentración al 4 5%. obtuvo 60% en Ae. 64% albopictus la 4%, mientras que 5% se 100% ambas especies. En presente no analizaron las precio, residualidad toxicidad los extractos.

Muỗi và bọ gậy được thu thập ở 306 hộ gia đình tại thành phố Huế thị xã Hương Thủy của tỉnh Thừa Thiên- Huế. Kết quả, hai loài muỗi Ae. aegypti albopictus, không Aedes khác. Trong đó, số nhà có là 63 (20,6%). Số albopictus 62 (20,3%). phân bố ưu thế vùng nội (thành Huế). ngoại (thị Thủy)

The mosquito Aedes albopictus, indigenous to Southeast Asia and nearby islands, has spread almost worldwide during recent decades. We confirm the invasion of this mosquito, first reported in Yamagata city in northeast Honshu, Japan in 2000. Previously, only Ae. japonicus japonicus had been collected in this place, but 2 years later, the population of Ae. albopictus had increased, so more than 8...

From a discarded heavy-equipment tire (ca. 57 liter) at an industrial construction site, we collected 655 (86.0%) Orthopodomyia signifera, 23 (3.0%) Toxorhynchites rutilus septentrionalis, 17 (2.2%) Aedes japonicus japonicus, and 67 (8.8%) Culex pipiens pipiens. Although larvae of Aedes albopictus and Aedes triseriatus were not collected from this container, both species were prevalent as host-...

This study focuses on two competing species, Aedes aegypti and Aedes albopictus (Diptera: Culicidae), both invasive mosquitoes of the New World. Context-specific competition between immature forms inside containers seems to be an important determinant of the coexistence or displacement of each species in different regions of the world. Here, competition experiments developed at low density (one...

Mechanisms by which an introduced container-dwelling mosquito, Aedes albopictus, may cause declines in a resident container-dwelling mosquito, Aedes aegypti, in South Florida were tested using a combination of field experiments and field observations. Field experiment 1 tested which species has a competitive advantage as larvae developing in water-filled tires. Densities and availability of res...

background: bromeliads can be epiphytic, terrestrial or saxicolous and use strategies to allow water to be re­tained in their leaf axils, where various arthropods can be found. these include mosquitoes, whose larvae are the most abundant and commonly found organisms in the leaf axils. the objective of this study was to look for im­mature forms of mosquitoes (the larval and pupal stages) in brom...

Laboratory tests were conducted to study the response of Anopheles dirus and Aedes albopictus to repellent formulations containing diethyl methylbenzamide (deet) and dimethyl phthalate. Anopheles dirus was tolerant of low concentrations of deet (5-20%), and formulations containing < or = 35% deet provided protection for < or = 90 min. In contrast, Ae. albopictus was sensitive to these formulati...

Brazil reported the majority of the dengue cases in Americas during the last two decades, where the occurrence of human dengue cases is exclusively attributed to the Aedes (Stegomyia) aegypti (Linnaeus). Nowadays, other recognized Dengue virus (DENV) vector in Asian countries, Aedes (Stegomyia) albopictus (Skuse), has been detected in more than half of the 5565 Brazilian municipalities. Therefo...

During 1989, ovitrapping was conducted by 36 U.S. Air Force bases, Ft. Sam Houston, TX, and the San Antonio Metropolitan Health District. Eleven organizations were positive for Aedes albopictus; the collection of Ae. albopictus at Arnold Air Force Base, TN, is a new record for Coffee County. Ten organizations were positive for Ae. aegypti; 18 were positive for Ae. triseriatus.