PubMed Health⌕ Search

SEARCH · PubMed Health

Results for “Mosquito Control”

Explore indexed PubMed citations for clinical trials, systematic reviews and public health research. Read source abstracts and follow each citation to its original PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 37 records · Page 2Linked to original sources
PubMed2005

Tick, fly, and mosquito control--lessons from the past, solutions for the future.

In order to continue to produce livestock in a sustainable fashion, it is suggested that what was used in the past will continue to form the mainstay of future control. For the foreseeable future, we must conserve what we have, and use it in combination with all the principles of integrated pest management, namely strategic and focussed treatments of animals, environmental control of breeding sites, disease management (including the principles of enzootic stability), and resistant breeds. Whilst new technologies, such as the development of vaccines both against the insect pest in some cases or the disease they transmit in others, and genetic engineering hold out some hope for the future; these are not sufficiently well advanced to permit wholesale application.

Animals↗
PubMed1998

A geographic information system approach to evaluating the effects of the endangered species protection program on mosquito control.

The purpose of this study was to assess what impacts on organized mosquito control the implementation of an Endangered Species Protection Program for the Houston toad might have in Chambers and Harris counties, Texas. The study was also intended to demonstrate the value of using geographic information system (GIS) techniques and methodologies in making such assessments to those in mosquito control who are unfamiliar with GIS and its applications. Using the GIS, Geographical Analysis Support System (GRASS), databases were developed on the habitats and patterns of mosquito control insecticide usage occurring in Chambers and Harris counties. These databases were then employed by means of various utilities associated with GRASS and computer-supported, rule-based reasoning processes to create maps depicting the amount and locations of toad habitat and the areas treated annually with insecticides by districts in Chambers and Harris counties. This map information was then used via other GRASS utilities to identify and depict zones of overlap or coincidence between toad habitat and areas treated with insecticides for mosquito control in the 2 counties. As compared to existing maps for toad habitat, our resulting GIS-generated maps gave more precise, easy-to-use information that could be used to make decisions as to how to protect the toad in the zones of coincidence in each county without causing undue disruption to mosquito control activities in these zones.

Animals↗
PubMed2004

Susceptibility of the leaf-eating beetle, Galerucella calmariensis, a biological control agent for purple loosestrife (Lythrum salcaria), to three mosquito control larvicides.

We evaluated the susceptibility of Galerucella calmariensis, a species used to control purple loosestrife (Lythrum salicaria), to three mosquito control larvicides. Larvae and adults were fed loosestrife cuttings dipped in Abate (< or = 375 g x L(-1)), Altosid (< or = 250 g x L(-1)), and Bacillus thuringiensis var israeliensis (Bti) (< or = 110 g x L(-1)). Eggs on cuttings were dipped in the same concentrations. Pupae were immersed in Abate and Altosid solutions (< or = 474.4 microg x L(-1) and < or = 1,169.2 microg x L(-1), respectively). Hatching success of eggs dipped in Abate (> or = 3.75 g x L(-1)) was reduced significantly and survival was significantly lower among larvae and adults eating cuttings dipped in Abate (> or = 0.17 g x L(-1) and > or = 2.27 g x L(-1), respectively). Hatching success of eggs dipped in Altosid (> or = 2.52 g x L(-1)) was reduced significantly. With exposure to Altosid, larval survival to pupation and adult emergence was reduced significantly at concentrations of > or = 2.92 g x L(-1) and > or = 0.63 g x L(-1), respectively. Altosid (> or = 0.23 g x L(-1)) also delayed the onset of pupation and adult emergence among larvae that survived to pupate. Larvae that survived with exposure to Altosid (> or = 1.72 g x L(-1)) grew to 70% larger than those exposed to lower concentrations. Pupal survival was unaffected with exposure to Abate and Altosid and adult survival was unaffected with exposure to Altosid. Bacillus thuringiensis var israeliensis did not adversely affect any life stage of G. calmariensis. The mean Abate concentration on cuttings exposed to operational spraying was in the range that reduced egg hatchability and adult survival but was higher than concentrations that caused complete mortality of larvae. The mean Altosid concentration on cuttings exposed to operational spraying was in the range that reduced hatching success in eggs and delayed pupation and adult emergence of larvae.

Animals↗
PubMed1998

BVA 2 mosquito larvicide--a new surface oil larvicide for mosquito control.

BVA 2 mosquito larvicide was evaluated in laboratory pan tests against 3rd-instar Aedes taeniorhynchus (Wied.), Culex quinquefasciatus Say, and Culex nigripalpus Theobald larvae. BVA 2 was as effective as the standard, GB-1111, at 14 liters/ha (> 99.1% vs. 99.8%). In small field plot tests BVA 2 mosquito larvicide applied at 28 liters/ha was as effective as GB-1111 (99.0% vs. 99.8%) 24 h posttreatment. Operationally, applied by helicopter at 46.8 liters/ha, BVA 2 mosquito larvicide was more effective (> 90%) in the slightly less vegetated site than in the heavily vegetated site. As a pupicide applied at 14 liters/ha in laboratory pan tests, no significant differences were noted between BVA 2 mosquito larvicide and GB-1111 against Ae. taeniorhynchus, Cx. quinquefasciatus, and Cx. nigripalpus pupae.

Aedes↗
PubMed2004

The endangered Illidge's ant blue butterfly (Acrodipsas illidgei) from an intertidal habitat managed for mosquito control.

Acrodipsas illidgei is an endangered butterfly inhabiting mangrove forests in southeastern Queensland, Australia. Concern over the effects of mosquito control activities prompted a broad-scale survey for the species at Coomera Island, in southeastern Queensland. The butterfly was recorded on the edge of an old-growth mangrove forest in close proximity to mosquito control runnels. Other forms of mosquito control at Coomera Island are unlikely to impact on the species because of the mode of action of larvicides used and the fact larvae occur within ant colonies formed in hollow stems and branches of mangrove trees. Further studies are required to more fully understand the relationships between mosquito control activities and the population dynamics of endangered species such as A. illidgei.

Animals↗
PubMed1996

Historical review of mosquito control as a component of malaria eradication program in the Ryukyu Archipelago.

In the Ryukyu Archipelago, where malaria used to be endemic, eradication of the disease was achieved by the year 1962, as a consequential effect of a planned malaria eradication program in the area. This achievement was facilitated by concerted efforts in controlling vector mosquitos and treatment of all detected and presumptive cases of malaria infections. Anopheles minimus Theobald and An. sinensis Wiedemann were common in all areas endemic for malaria. Knowledge of the biology and bionomics of the mosquitos in malaria endemic areas formed the basis for formulating strategies for the control of vectors and subsequent surveillance activities. Insecticide residual spray, larvivorous fishes and environmental management were the basic strategies for vector control. The whole program was augmented by an active community participation in all eradication activities.

History, 19th Century↗
PubMed2026

Exploring the potential of RNA interference (RNAi) in mosquito control: from mechanisms to molecular insights.

Mosquito-borne diseases represent a growing global health crisis, exacerbated by climate change and insecticide resistance. RNA interference (RNAi), a natural mechanism of gene silencing, offers a promising, target-specific alternative for mosquito control. This review explores the potential of RNAi to disrupt critical physiological processes, such as reproduction and disease transmission, thereby reducing vector populations and competence. We examine the mechanisms of RNAi, its application in combatting insecticide resistance, and recent advancements in delivery systems, including nanobody- and chitosan-based nanoparticles, which enhance the stability and uptake of double-stranded RNA (dsRNA) molecules. However, significant challenges remain, such as optimizing field-effective delivery methods and assessing potential off-target effects on non-target organisms. Continued innovation in RNAi technology is pivotal for developing sustainable and environmentally sound vector control strategies. This review synthesizes current research, highlighting the molecular insights, practical applications, and future directions for integrating RNAi into modern public health initiatives.

RNA Interference↗
PubMed1985

The use of present value criterion applications in making mosquito control decisions.

Present value criterion in mosquito-control decisions was presented with several examples that illustrate its applicability and the modifications it allows. An actual case study from data derived in Chatham County, GA was presented. Findings of this case study suggest that permanent control contributed to the reduction of ground adulticide applications and quantities, adult densities of female mosquitoes per light-trap night, and the proportion of primary target salt-marsh species relative to total species per light-trap night.

Animals↗
PubMed2004

Evaluation of vegetation management strategies for controlling mosquitoes in a southern California constructed wetland.

The abundance of mosquito larvae and adult production were measured in 3 vegetation treatments and 2 species of emergent macrophytes in replicated wetland mesocosms (12 x 80 m). During the 8-wk study, no significant differences were found in abundances of larvae and emerging adult mosquitoes among the vegetation treatments: 100% of the surface area in emergent vegetation, 50% of the surface area in emergent vegetation in 5-m-wide rows, and 50% of the surface area in emergent vegetation in 10-m-wide rows. Mosquito larvae (predominantly Culex tarsalis and Anopheles hermsi) were significantly more abundant in inundated bulrush (Schoenoplectus californicus) than in inundated cattail (Typha sp.). Adult emergence from vegetated zones containing bulrush also was significantly greater than from cattail. The failure of reduced emergent vegetation coverage to provide a significant reduction in mosquito production from the vegetated zones of the wetlands might have been caused by favorable conditions for mosquito oviposition and larval development after vegetation management and by the ineffectiveness of mosquito predators in emergent vegetation. A 50% reduction of vegetation did not significantly reduce the water quality of the wetland effluent; however, narrower rows (<5 m wide) of vegetation may be required to reduce mosquito production from vegetated regions of the treatment wetlands. Even though the abundance of mosquito larvae in open water is typically less than in emergent vegetation, creation of open-water zones in shallow treatment wetlands (<1 m depth) by drying the wetland followed by removal of emergent vegetation with heavy equipment is unlikely to provide a significant long-term reduction of mosquito production.

Animals↗
PubMed1990

Salt marsh mosquito control in Portsmouth, Rhode Island.

The Portsmouth, Rhode Island Mosquito Control Program used granular Bacillus thuringiensis var. israelensis to successfully control salt marsh mosquitoes in a 9 acre salt marsh while monitoring for, planning and implementing small scale open marsh water management in the marsh. Single season larviciding costs were roughly 4% that of contracted open marsh water management in this marsh.

Aedes↗