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 379 records · Page 21Linked to original sources
PubMed1983

[Biological control agents against mosquitoes].

The control programs of mosquitoes are physical; chemical, mechanic control, control by sterilization, genetic, public health rules and biological control. Biological control is the most efficient and convenient one because of resistant organisms against insecticides, economic problems and degeneration of the eco-system. This control employs protozoal, fungal, bacterial pathogens, mosquito predator fish, nematoda parasites as bioagents. Safety tests, sensitivity to environmental factors, effectiveness against non-target organisms, production, stability and field trials are all giving promising results.

Culicidae↗
PubMed1996

Mosquito vector control and biology in Latin America--a sixth symposium.

The sixth Spanish language symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 62nd Annual Meeting in Norfolk, VA, in March 1996. The principal objective, as for the previous 5 symposia, was to promote the participation in the AMCA meeting by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 25 presentations that were given in Spanish by participants from 6 countries in Latin America and the USA. The symposium included the following topics: ecological and genetic studies of anopheline vectors of malaria, laboratory and field evaluations of chemical control methods for several mosquito species, ecological studies and community control of Aedes aegypti, and reports of dengue/dengue hemorrhagic fever and Venezuelan equine encephalitis epidemics that occurred in Latin America in 1995.

Animals↗
PubMed1986

Biological control of mosquitoes by the larvicidal activity of Bacillus thuringiensis var. israelensis delta endotoxin.

Bacillus thuringiensis var. israelensis (B.t.i.) is a promising, safe toxic agent for control of mosquitoes, but the rapid disappearance of its toxicity makes its use in practice economically unattractive. The lack of evidence for B.t.i. multiplication in water also makes the natural ecology of B.t.i. puzzling. The observation that mosquito larvae readily cannibalize carcasses of B.t.i.-killed larvae, and that the carcasses become toxic to scavenging larvae provides a possible solution to this puzzle. Several experimental techniques have been developed to study these phenomena (e.g., quantitative determination of spore numbers despite aggregation, protocols for following toxicity development, etc.). Results suggest a cycle involving larval poisoning and death due to delta-endotoxin of ca. 1,000 spores, germination, vegetative growth and sporulation (with toxin production) of B.t.i. after multiplication to several million in the carcass. Implications of these results for the ecology of B.t.i., and for practical applications in mosquito control, are discussed.

Animals↗
PubMed1987

The public's view of mosquito problems in an organized control district.

Mosquito control programs provide abatement services to residents of urban, suburban and rural areas. The differing perceptions of these programs by residents of the Jefferson County Mosquito Control District (Texas) are examined using a mail survey. Mosquito problems start occurring earlier in the year for urban residents. The average number of bites per hour per night was 11. Rural residents used more self-administered control methods and incurred greater expenditures for these efforts than other residents. A majority of respondents recognized the effectiveness of the mosquito control district's current abatement efforts, but 56% supported greater use of nonchemical control methods. The study methods are expected to be useful in other areas to address similar problems.

Adult↗
PubMed2000

Mosquito vector control and biology in Latin America--a tenth symposium. Abstracts.

The 10th annual Latin American symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 66th Annual Meeting in Atlantic City, NJ, in March 2000. The principal objective, as for the previous 9 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 57 presentations that were given orally in Spanish or presented as posters by participants from 9 countries in Latin America. Topics addressed in the symposium included results from chemical and biological control programs and studies; studies of insecticide resistance; and molecular, ecological, and behavioral studies of vectors of dengue (Aedes aegypti). malaria (Anopheles albimanus and Anopheles aquasalis). leishmaniasis (Lutzomyia), and Chagas' disease (Triatoma). Related topics included biology and control of scorpions and Chironomus plumosus.

Animals↗
PubMed1985

Methods for evaluation of costs associated with permanent and temporary control methods for salt marsh mosquito abatement.

Faced with reduced operating expenses, mosquito control agencies must be able to assess cost-effectiveness of various control techniques using practical and simple procedures. Previous economic literature on this subject is sparse, controversial, and not routinely applicable. This paper proposes and tests methodologies for comparing costs of temporary and permanent control strategies utilizing actual biological and cost data routinely generated by two New Jersey mosquito extermination commissions.

Animals↗
PubMed2002

A theoretical approach to predicting the success of genetic manipulation of malaria mosquitoes in malaria control.

BACKGROUND: Mosquitoes that have been genetically modified to better encapsulate the malaria parasite Plasmodium falciparum are being considered as a possible tool in the control of malaria. Hopes for this have been raised with the identification of genes involved in the encapsulation response and with advances in the tools required to transform mosquitoes. However, we have only very little understanding of the conditions that would allow such genes to spread in natural populations. METHODS: We present here a theoretical model that combines population genetical and epidemiological processes, thereby allowing one to predict not only these conditions (intensity of transmission, evolutionary cost of resistance, tools used to drive the genes) but also the impact of the spread of refractoriness on the prevalence of the disease. RESULTS: The main conclusions are 1) that efficient transposons will generally be able to drive genes that confer refractoriness through populations even if there is a substantial (evolutionary) cost of refractoriness, but 2) that this will decrease malaria prevalence in the human population substantially only if refractoriness is close to 100% effective. CONCLUSIONS: If refractoriness is less than 100% effective (because of, for example, environmentally induced variation in the effectiveness of the mosquito's immune response), control programmes based on genetic manipulation of mosquitoes will have very little impact on the epidemiology of malaria, at least in areas with intense transmission.

Animals↗
PubMed1992

Mosquito vector control and biology in Latin America--a second symposium.

The second Spanish language symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 58th Annual Meeting in Corpus Christi, TX in March 1992. The principal objective, as it was for the 1991 symposium, was to increase and stimulate greater participation in the AMCA by vector control specialists and public health workers from Latin America. This publication includes summaries of 25 individual presentations that were given in Spanish. The symposium included the following topics: biology and chemical control of Aedes aegypti and anopheline vectors of malaria; field and laboratory studies of biological control agents for Aedes aegypti; community participation in the prevention of dengue; and other various aspects of the biology of other medically important arthropods (e.g., Simulium ochraceum, Lutzomyia and Culicoides).

Aedes↗
PubMed2003

Emergence of resistance and resistance management in field populations of tropical Culex quinquefasciatus to the microbial control agent Bacillus sphaericus.

In recent years, highly potent mosquitocidal strains of the microbial agent Bacillus sphaericus (Bsph) have been isolated and developed for the control of mosquito larvae around the world. Laboratory selection experiments with the most active strains and their use in large-scale operational mosquito control programs resulted in the emergence of resistance in larvae of the Culex pipiens complex. This generated great concern among vector control agencies around the world, who feared reduced efficacy of this highly active larvicidal agent. To address this issue, the current studies were started to find practical strategies for controlling resistant mosquitoes and more importantly to develop resistance management strategies that would prevent or delay development of resistance. We initiated field studies in 3 low-income communities in Nonthaburi Province, Thailand. In 1 of the communities, larvae of Culex quinquefasciatus that were highly resistant (>125,000-fold) to Bsph strain 2362 were successfully controlled with applications of Bacillus thuringiensis var. israelensis (Bti) alone or in combination with Bsph. To prevent or delay resistance to Bsph, 2 other sites were selected, 1 treated with Bsph 2362 alone and the other treated with a mixture of Bsph 2362 and Bti. Mosquitoes treated with Bsph 2362 alone showed some resistance by the 9th treatment and almost complete failure of control occurred by the 17th treatment. After 9 treatments with the mixture over a 9-month period at another site, no noticeable change in susceptibility to Bsph was detected. During this period, the site treated with Bsph alone required 19 treatments, whereas the site treated with mixtures took only 9 treatments because of slower resurgence of larvae at the site treated with the mixture than at the site treated with Bsph alone. This is the 1st field evidence for delay or prevention of resistance to microbial agents in larval Cx. quinquefasciatus by using mixtures of Bti and Bsph. Further studies on the use of mixtures for the management of field resistance are warranted.

Animals↗
PubMed2001

Mosquito vector control and biology in Latin America--an eleventh symposium.

The 11th annual Latin American symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 67th Annual Meeting in Dallas, TX, in February 2001. The principal objective, as for the previous 10 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 45 presentations that were given orally in Spanish or presented as posters by participants from 8 countries in Latin America. Topics addressed in the symposium included results from chemical and biological control programs and studies; studies of insecticide resistance; and population genetics, molecular, ecological, and behavioral studies of vectors of dengue (Aedes aegypti), malaria (Anopheles albimanus and Anopheles aquasalis), leishmaniasis (Lutzomyia), murine typhus, and Chagas' disease (Triatoma). Related topics included biology and control of Rhodnius, scorpions, Loxosceles spp., Chironomus plumosus, and Musca domestica.

Animals↗
PubMed2005

Mosquito vector control and biology in Latin America--a 15th symposium. Abstracts.

The 15th Annual Latin American symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 71st Annual Meeting in Vancouver, British Columbia, Canada, in April 2005. The principal objective, as for the previous 14 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 40 presentations that were given orally in Spanish or presented as posters by participants from 8 countries in Latin America and the USA. Topics addressed in the symposium included results from chemical and biological control programs and studies; studies of insecticide resistance; and population genetics, molecular, ecological, and behavioral studies of vectors of dengue (Aedes aegypti and Ae. albopictus) and other arboviruses, malaria (Anopheles albimanus, An. aquasalis, An. neomaculipalpus, An. pseudopunctipennis), leishmaniasis (Lutzomyia), and Chagas Disease (Triatoma), as well as a vaccine for control of Boophilus ticks on cattle.

Animals↗
PubMed2004

Mosquito vector control and biology in Latin America--a fourteenth symposium. Abstracts.

The 14th annual Latin American symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 70th Annual Meeting in Savannah, GA, in February 2004. The principal objective, as for the previous 13 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 37 presentations that were given orally in Spanish or presented as posters by participants from 7 countries in Latin America. Topics addressed in the symposium included results from chemical and biological control programs and studies; studies of insecticide resistance; and population genetics, molecular, ecological, and behavioral studies of vectors of dengue (Aedes aegypti and Aedes albopictus) and other arboviruses, malaria (Anopheles albimanus and Anopheles pseudopunctipennis), leishmaniasis (Lutzomyia), and Chagas disease (Triatoma).

Animals↗
PubMed2002

Mosquito vector control and biology in Latin America--a twelfth symposium. Denver, Colorado, February 2002. Summaries.

The 12th annual Latin American symposium presented by the American Mosquito Control Association (AMCA) was held as part of the 68th Annual Meeting in Denver, CO, in February 2002. The principal objective, as for the previous 11 symposia, was to promote participation in the AMCA by vector control specialists, public health workers, and academicians from Latin America. This publication includes summaries of 35 presentations that were given orally in Spanish or presented as posters by participants from 7 countries in Latin America. Topics addressed in the symposium included results from chemical and biological control programs and studies; studies of insecticide resistance; and population genetics, molecular, ecological, and behavioral studies of vectors of dengue (Aedes aegypti and Aedes albopictus) and other arboviruses, malaria (Anopheles albimanus and Anopheles pseudopunctipennis), leishmaniasis (Lutzomyia), and Chagas Disease (Triatoma). Related topics included biology and control of Culiseta inornata, Ochlerotatus taeniorhynchus, scorpions, Chironomus plumosus, and Musca domestica.

Animals↗
PubMed1990

Relative potency of lambdacyhalothrin and cypermethrin applied as thermal fogs for the control of houseflies (Musca domestica) and mosquitos (Aedes aegypti).

Two highly active synthetic pyrethroid insecticides, lambdacyhalothrin and cypermethrin, were evaluated as thermal fogs against houseflies (Musca domestica Linnaeus) and mosquitos (Aedes aegypti Linnaeus). Lambdacyhalothrin (OMS 3021) showed an average of 2.5 times more knockdown activity and over 5 times more adulticidal activity than cypermethrin against Musca domestica and Aedes aegypti. These results demonstrate that lambdacyhalothrin is highly effective at very low rates as a thermal fog against Ae. aegypti and M. domestica. Commercially available formulations of 2.5% and 5% lambdacyhalothrin can be diluted either with water for ULV cold aerosol space-spraying or with diesel/kerosene for thermal fogging at recommended application rates of 0.5-1 g ai/ha for mosquito control and 2 g ai/ha for housefly control. Due to the very low rates of application, formulated products of lambdacyhalothrin are unlikely to present any acute hazards in normal use. The low dosages required to bring about rapid control of houseflies and mosquitos make this new pyrethroid insecticide particularly cost-effective. Coupled with its good residual activity (Jutsum et al, 1984), lambdacyhalothrin can be adopted as a powerful tool in integrated pest management program for the control of medically important pests and vectors.

Aedes↗
PubMed1990

Our race to the future.

The need for mosquito control is documented from history books with comments about hoards of mosquitoes, deaths from mysterious high fevers, and yellow fever, malaria and dengue. The paper traces the birth of mosquito control in the United States to the present time with a look into the future. Regulations are discussed and their effect on mosquito control methods. Public education and training of personnel is mentioned. The author's opinion of AMCA's role in the future of mosquito control and research is one of prominence and leadership.

Forecasting↗