| efficacy of bacillus sphaericus 2362 formulations against floodwater mosquitoes. | four new formulations of bacillus sphaericus 2362 yielded excellent control of floodwater mosquitoes psorophora columbiae and aedes nigromaculis in irrigated fields in kings and riverside counties of california. a primary powder formulation (abg-6184) was the most active, producing excellent control of ps. columbiae and ae. nigromaculis at the rates of 0.05 to 0.5 lb/acre (0.055-0.56 kg/ha). a liquid formulation (bsp-2) was slightly less active, but was effective against the same species in the ... | 1988 | 3193114 |
| sensitivity to carbon dioxide in mosquitoes infected with california serogroup arboviruses. | ten species of mosquitoes became sensitive to co2 following intrathoracic (i.t.) inoculation of california encephalitis (ce) virus. these included field-collected aedes melanimon, aedes nigromaculis and culiseta incidens and laboratory-colonized strains of aedes dorsalis, aedes triseriatus, anopheles freeborni, culex peus, culex pipiens pipiens, culex pipiens quinquefasciatus and culex tarsalis. another california serogroup virus, jerry slough (= jamestown canyon) (js), also induced co2 sensitiv ... | 1982 | 6122383 |
| field evaluation of the microbial insecticide bacillus thuringiensis serotype h-14 against floodwater mosquitoes. | four experimental formulations of the microbial insecticide bacillus thuringiensis var. israelensis (serotype h-14) were evaluated in the field against larvae of the floodwater mosquitoes aedes nigromaculis and psorophora columbiae with ground and aerial application methods. the formulations included abg-6108d (abbott laboratories, north chicago, ill.), a wettable powder containing about 400 iu/mg, sandoz 402-wdc (sadoz, inc., homestead, fla.), a flowable concentrate containing 600 iu/mg, and tw ... | 1982 | 6125127 |
| high level methoprene resistance in the mosquito ochlerotatus nigromaculis (ludlow) in central california. | in the summer of 1998, failures of methoprene field applications to control the mosquito ochlerotatus nigromaculis (ludlow) were noticed in several pastures in the outskirts of fresno, california, usa. effective control with methoprene had been achieved for over 20 years prior to this discovery. susceptibility tests indicated that the fresno oc nigromaculis populations had developed several thousand-fold higher lc50 and lc90 tolerance levels to methoprene compared with methoprene-naïve populatio ... | 2002 | 12192903 |
| duration of activity of western equine encephalitis neutralizing antibodies in aedes nigromaculis and culex tarsalis. | | 1953 | 13040680 |
| aedes nigromaculis (ludlow), mosquito naturally infected with western equine encephalomyelitis virus. | | 1954 | 13237232 |
| infection of malaria (anopheles gambiae s.s.) and filariasis (culex quinquefasciatus) vectors with the entomopathogenic fungus metarhizium anisopliae. | current intra-domiciliary vector control depends on the application of residual insecticides and/or repellents. although biological control agents have been developed against aquatic mosquito stages, none are available for adults. following successful use of an entomopathogenic fungus against tsetse flies (diptera: glossinidae) we investigated the potency of this fungus as a biological control agent for adult malaria and filariasis vector mosquitoes. | 2003 | 14565851 |
| development of a hplc/tandem-ms method for the analysis of the larvicides methoprene, hydroprene, and kinoprene at trace levels using diels-alder derivatization. | the invasion and subsequent spread of the mosquito-borne west nile virus in the united states has resulted in increased use of methoprene. with the increased need for sensitive detection and monitoring of methoprene in the environment, an analytical lc/esi-ms/ms method has been developed for the analysis of methoprene and two analogues, kinoprene and hydroprene, in water. to improve the ionization efficiency of the nonpolar analytes, a derivatization step with the cookson-type reagent 4-phenyl-1 ... | 2005 | 15853364 |
| entomopathogenic fungi for mosquito control: a review. | fungal diseases in insects are common and widespread and can decimate their populations in spectacular epizootics. virtually all insect orders are susceptible to fungal diseases, including dipterans. fungal pathogens such as lagenidium, coelomomyces and culicinomyces are known to affect mosquito populations, and have been studied extensively. there are, however, many other fungi that infect and kill mosquitoes at the larval and/or adult stage. the discovery, in 1977, of the selective mosquito-pa ... | 2004 | 15861235 |
| drosophila melanogaster methoprene-tolerant (met) gene homologs from three mosquito species: members of pas transcriptional factor family. | the methoprene-tolerant (met) gene in drosophila melanogaster has been shown to function in juvenile hormone (jh) action. met homologs were isolated from three mosquito species, culex pipiens, aedes aegypti and anopheles gambiae. sequence similarity was found to be high in bhlh and pas conserved domains, and the majority of the 7-9 introns in aamet and agmet are located in either identical or similar positions, indicating evolutionary relatedness. sequence comparison with met and the similar ger ... | 2007 | 17166512 |
| constant temperature and time period effects on anopheles gambiae egg hatching. | anopheles gambiae giles sensu stricto (diptera: culicidae) egg development and its relation to environmental parameters is an understudied aspect of vector biology. although several studies have illustrated the dramatic effects of temperature on egg development, egg hatching dynamics remain unclear. the objective of this study was to expose an. gambiae eggs to various temperatures for different lengths of time and determine the impact on egg development and hatching count. batches of mosquito eg ... | 2007 | 17847843 |
| urban habitat evaluation for west nile virus surveillance in mosquitoes in albuquerque, new mexico. | as part of an ongoing mosquito surveillance program, 27 sites in the greater metropolitan albuquerque area (bernalillo county, new mexico) were trapped from may through september 2004. each site was sampled for 1 night weekly, using a standard co2-baited centers for disease control and prevention light trap and a gravid trap. captured mosquitoes were catalogued by location, species, and date, and selected pools were tested for west nile virus (wnv) by reverse transcription-polymerase chain react ... | 2007 | 17847847 |
| laboratory transmission of st. louis encephalitis virus by three genera of mosquitoes. | 1. st. louis virus has been successfully transmitted in the laboratory by the following 9 species of mosquitoes from 3 genera: culex tarsalis, culex pipiens, culex coronator, aedes lateralis, aedes taeniorhynchus, aedes vexans, aedes nigromaculis, theobaldia incidens, and theobaldia inornata. 2. though transmission has not been demonstrated, survival of the virus for more than a few days was shown to occur in culex quinquefasciatus, culex stigmatosoma, psorophora ciliata, and anopheles maculipen ... | 1943 | 19871325 |
| Juvenile Hormone (JH) Esterase of the Mosquito Culex quinquefasciatus Is Not a Target of the JH Analog Insecticide Methoprene. | Juvenile hormones (JHs) are essential sesquiterpenes that control insect development and reproduction. JH analog (JHA) insecticides such as methoprene are compounds that mimic the structure and/or biological activity of JH. In this study we obtained a full-length cDNA, cqjhe, from the southern house mosquito Culex quinquefasciatus that encodes CqJHE, an esterase that selectively metabolizes JH. Unlike other recombinant esterases that have been identified from dipteran insects, CqJHE hydrolyzed J ... | 2011 | 22174797 |
| predicting the mosquito species and vertebrate species involved in the theoretical transmission of rift valley fever virus in the united states. | rift valley fever virus (rvfv) is a mosquito-borne virus in the family bunyaviridiae that has spread throughout continental africa to madagascar and the arabian peninsula. the establishment of rvfv in north america would have serious consequences for human and animal health in addition to a significant economic impact on the livestock industry. published and unpublished data on rvfv vector competence, vertebrate host competence, and mosquito feeding patterns from the united states were combined ... | 2014 | 25211133 |
| analysis of post-blood meal flight distances in mosquitoes utilizing zoo animal blood meals. | we assessed the post-blood meal flight distance of four mosquito species in a unique environment using blood meal analysis. mosquitoes were trapped at the rio grande zoo in albuquerque, nm, and the blood source of blood-engorged mosquitoes was identified. the distance from the enclosure of the animal serving as a blood source to the trap site was then determined. we found that mosquitoes captured at the zoo flew no more than 170 m with an average distance of 106.7 m after taking a blood meal. th ... | 0 | 22548540 |
| north american wetlands and mosquito control. | wetlands are valuable habitats that provide important social, economic, and ecological services such as flood control, water quality improvement, carbon sequestration, pollutant removal, and primary/secondary production export to terrestrial and aquatic food chains. there is disagreement about the need for mosquito control in wetlands and about the techniques utilized for mosquito abatement and their impacts upon wetlands ecosystems. mosquito control in wetlands is a complex issue influenced by ... | 2012 | 23222252 |
| desiccation and thermal tolerance of eggs and the coexistence of competing mosquitoes. | we tested the hypothesis that differences in temperature and desiccation tolerances of eggs of the container-dwelling mosquitoes aedes albopictus and aedes aegypti influence whether invading a. albopictus coexist with or exclude a. aegypti in florida. in the laboratory, egg mortality through 30 days for a. albopictus was strongly temperature and humidity dependent, with low humidity and high temperature producing greatest mortality. in contrast, mortality through 30 days and through 60 days for ... | 0 | 20871747 |
| fungal biological control agents for integrated management of culicoides spp. (diptera: ceratopogonidae) of livestock. | entomopathogenic fungi metarhizium anisopliae and beauveria bassiana had wide host range against insects and hence these are being exploited as fungal bio-pesticide on a large scale. both fungi are proved pesticides against many crop pests and farmers are well acquainted with their use on the field. thus, research was aimed to explore the potency of these fungal spores against larval and adult culicoides midges, a pest of livestock. | 2015 | 27047065 |
| coffee and its waste repel gravid aedes albopictus females and inhibit the development of their embryos. | dengue is a prevalent arboviral disease and the development of insecticide resistance among its vectors impedes endeavors to control it. coffee is drunk by millions of people daily worldwide, which is associated with the discarding of large amounts of waste. coffee and its waste contain large amounts of chemicals many of which are highly toxic and none of which have a history of resistance in mosquitoes. once in solution, coffee is brownish in colour, resembling leaf infusion, which is highly at ... | 2015 | 25966847 |
| pyrethroid resistance in aedes aegypti and aedes albopictus from port-au-prince, haiti. | in port-au-prince, haiti, the status of insecticide resistance has not recently been evaluated for aedes aegypti (l) and aedes albopictus (skuse) populations. no prophylactics exist for dengue, so prevention is only through vector control methods. an earthquake occurred in haiti on january 12, 2010, with a magnitude of 7.0 mw that devastated the area. dengue became a major concern for the humanitarian relief workers that entered the country. bottle bioassays were conducted in the field on adult ... | 0 | 23181855 |
| patterns of spatio-temporal distribution, abundance, and diversity in a mosquito community from the eastern smoky hills of kansas. | nearly 30% of emerging infectious disease events are caused by vector-borne pathogens with wildlife origins. their transmission involves a complex interplay among pathogens, arthropod vectors, the environment and host species, and they pose a risk for public health, livestock and wildlife species. examining habitat associations of vector species known to transmit infectious diseases, and quantifying spatio-temporal dynamics of mosquito vector communities is one aspect of the holistic one health ... | 2013 | 24581350 |
| influence of vegetation on carbon dioxide trap effectiveness for sampling mosquitoes in the sierra nevada foothills of kern county, california. | the effect of vegetation on sampling culex tarsalis, cx. quinquefasciatus and aedes nigromaculis by co2 traps was evaluated at an intermittent stream habitat at the base of the sierra nevada foothills. carbon dioxide traps were spaced along a 450 m transect perpendicular to poso creek to determine female attraction to traps placed in 5 different vegetation substrates: 1) open hilltop with sparse growth of grasses and saltbush, 2) open pasture with sparse growth of saltbush, 3) peripheral underst ... | 1991 | 1791459 |
| ddt larvicides dispersed by spray and thermal aerosol planes for the control of aedes dorsalis, meigen and aedes nigromaculis ludlow. | | 1949 | 15408646 |
| methoprene tolerance in aedes nigromaculis in fresno county, california. | methoprene, a juvenile hormone analogue, has been used for at least 20 years as the primary insecticide to control the pasture mosquito aedes nigromaculis in fresno county, california. first reports of apparent methoprene control failures were noted in a pasture west of fresno in september 1998. insufficient control was noted in 12 different pastures the following season from april to september 1999. in september of 1999, field trials were conducted to better ascertain the level of control. resu ... | 2000 | 11081650 |
| insecticide resistance and cross-resistance in aedes nigromaculis. | | 1970 | 5475203 |
| association of insecticide structure and resistance in aedes nigromaculis. | | 1970 | 5489573 |
| sexual dimorphism in aedes nigromaculis adults with descriptions of gynandromorphs (diptera: culicidae). | | 1969 | 5360489 |
| pattern of dispersion of the pasture mosquito aedes nigromaculis (ludlow) larvae in experimental plot. | | 1969 | 5382644 |
| organophosphorus resistance levels in adults and larvae of the pasture mosquito, aedes nigromaculis (ludlow) in the san joaquin valley of california. | | 1969 | 5379928 |
| development of organophosphorus resistant aedes nigromaculis (ludlow) in the tulare mosquito abatement district. | | 1969 | 5379927 |
| field test of flit on organophosphorus-resistant aedes nigromaculis in the delta mosquito abatement district. | | 1968 | 5730070 |
| cross-tolerance of california aedes nigromaculis (ludlow) larvae to epn, abate, and dursban. | | 1968 | 5730067 |
| interpretation of resistance in california aedes nigromaculis larvae. | | 1968 | 5730064 |
| biochemical-radiological determinations of parathion resistance in aedes nigromaculis. | | 1966 | 5935073 |