| larvicidal efficacy of the citrus limetta peel extracts against indian strains of anopheles stephensi liston and aedes aegypti l. | the extracts from the peels of citrus limetta were prepared using hexane and petroleum ether as the solvents. the larvicidal potential of each extract was assessed against dengue fever vector, aedes aegypti, and malarial vector, anopheles stephensi, by evaluating the toxicity effects on early fourth instars. both the extracts were found effective against both the species. the bioassay with hexane extracts resulted in lc(50) values of 132.45 and 96.15 ppm against a. stephensi and a. aegypti, resp ... | 2012 | 22231268 |
| larvicidal and ovicidal properties of leaf and seed extracts of delonix elata (l.) gamble (family: fabaceae) against malaria (anopheles stephensi liston) and dengue (aedes aegypti linn.) (diptera: culicidae) vector mosquitoes. | mosquito-borne diseases with an economic impact create loss in commercial and labor outputs, particularly in countries with tropical and subtropical climates. mosquito control is facing a threat because of the emergence of resistance to synthetic insecticides. extracts from plants may be alternative sources of mosquito control agents because they constitute a rich source of bioactive compounds that are biodegradable into nontoxic products and potentially suitable for use to control mosquitoes. i ... | 2012 | 22231265 |
| insect transgenesis: current applications and future prospects. | the ability to manipulate the genomes of many insects has become a practical reality over the past 15 years. this has been led by the identification of several useful transposon vector systems that have allowed the identification and development of generalized, species-specific, and tissue-specific promoter systems for controlled expression of gene products upon introduction into insect genomes. armed with these capabilities, researchers have made significant strides in both fundamental and appl ... | 2012 | 22149266 |
| mosquito larvicidal properties of aqueous and acetone extracts of trianthema portulacastrum linn. (family: aizoaceae) against vector species of mosquitoes. | crude aqueous and acetone extracts of leaf of trianthema portulacastrum was evaluated for its mosquito larvicidal properties against the larvae of four vector species of mosquito under laboratory conditions. these extracts showed good larvicidal properties, 100% mortality in the third instar larvae was observed in the larval bioassay test with anopheles culicifacies, anopheles stephensi, culex quinquefasciatus and aedes aegypti at a concentration of 1.0, 0.75, 0.75 and 1.0% respectively. the ld5 ... | 2011 | 23781639 |
| larvicidal activity of silver nanoparticles synthesized using plumeria rubra plant latex against aedes aegypti and anopheles stephensi. | in the present study activity of silver nanoparticles (agnps) synthesized using plumeria rubra plant latex against second and fourth larval instar of aedes aegypti and anopheles stephensi was determined. range of concentrations of synthesized agnps (10, 5, 2.5, 1.25, 0.625, 0.3125 ppm) and aqueous crude latex (1,000, 500, 250, 125, 62.50, 31.25 ppm) were tested against larvae of a. aegypti and a. stephensi. the synthesized agnps from p. rubra latex were highly toxic than crude latex extract in b ... | 2012 | 22089086 |
| green synthesis of silver nanoparticles for the control of mosquito vectors of malaria, filariasis, and dengue. | a biological method was used to synthesize stable silver nanoparticles that were tested as mosquito larvicides against aedes aegypti, anopheles stephensi, and culex quinquefasciatus. annona squamosa leaf broth (5%) reduced aqueous 1 mm agno₃ to stable silver nanoparticles with an average size of 450 nm. the structure and percentage of synthesized nanoparticles was characterized by using ultraviolet spectrophotometry, x-ray diffraction, fourier transform infrared spectroscopy, and scanning electr ... | 2012 | 22022807 |
| mosquitocidal and water purification properties of cynodon dactylon, aloe vera, hemidesmus indicus and coleus amboinicus leaf extracts against the mosquito vectors. | ethanolic extracts of cynodon dactylon, aloe vera, hemidesmus indicus and coleus amboinicus were tested for their toxicity effect on the third-instar larvae of anopheles stephensi, culex quinquefasciatus and aedes aegypti. the leaves of c. dactylon, a. vera, h. indicus and c. amboinicus were collected from natural habitats (forests) in western ghats, tamil nadu, india. a total of 250 g of fresh, mature leaves were rinsed with distilled water and dried in shade. the dried leaves were put in soxhl ... | 2012 | 21947308 |
| comparative larvicidal potential of different plant parts of withania somnifera against vector mosquitoes in the semi-arid region of rajasthan. | larvicidal potential of the extracts from different parts viz. green and red fruits, seeds, fruit without seeds, leaves and roots of withania somnifera in different solvents was evaluated against larvae of anopheles stephensi, aedes aegypti and culex quinquefasciatus, the important disease vectors prevalent in the semi-arid region. experiments were carried out on late 3rd or early 4th instar larvae of these mosquitoes using standard who technique. 24 and 48 hr lc50 values along with their 95% co ... | 2011 | 21888235 |
| evaluation of larvicidal activity of acalypha alnifolia klein ex willd. (euphorbiaceae) leaf extract against the malarial vector, anopheles stephensi, dengue vector, aedes aegypti and bancroftian filariasis vector, culex quinquefasciatus (diptera: culicidae). | the leaf extract of acalypha alnifolia with different solvents - hexane, chloroform, ethyl acetate, acetone and methanol - were tested for larvicidal activity against three important mosquitoes such as malarial vector, anopheles stephensi, dengue vector, aedes aegypti and bancroftian filariasis vector, culex quinquefasciatus. the medicinal plants were collected from the area around kallar hills near the western ghats, coimbatore, india. a. alnifolia plant was washed with tap water and shade drie ... | 2012 | 21748350 |
| evaluation of culture filtrates of culicinomyces clavisporus: mycoadulticide for culex quinquefasciatus, aedes aegypti and anopheles stephensi. | the culicinomyces clavisporus is a fungal pathogen of a wide range of mosquito larvae. the c. clavisporus was isolated from the larvae of culiseta inornata. we have investigated into potential pathogenicity against the adults of culex quinquefasciatus, aedes aegypti and anopheles stephensi. the culture filtrates released from the strain of c. clavisporus 46258 were grown in the emypss broth, were filtered and used for the bioassays after a growth of 15 days. the results demonstrated these metabo ... | 2012 | 21647670 |
| the mosquitocidal activity of methanolic extracts of lantana cramera root and anacardium occidentale leaf: role of glutathione s-transferase in insecticide resistance. | larvicidal activity of methanolic plant extracts of lantana cramera (p1) root and anacardium occidentale (p2) leaf was investigated against the larvae of the three mosquito species (culex quinquefasciatus, anopheles stephensi, and aedes aegypti reared in the laboratory), and the respective glutathione s-transferase (gst) activity was analyzed as an index of protection against the extracts. the lc50 (extract concentration that shows 50% mortality) values of p1 extract for an. stephensi, ae. aegyp ... | 2011 | 21485364 |
| mosquitocidal properties of nereistoxin against anopheles stephensi, aedes aegypti and culex quinquefasciatus (diptera: culicidae). | emergence of resistance among mosquitoes is a recent problem. safe and eco-friendly agents from biological origins are the need of the hour. nereistoxin, a naturally occurring substance, was first isolated from the marine annelid lumbriconereis heteropoda and stored in the freezer. in the present study, the toxicity of nereistoxin was evaluated against vector mosquitoes. the larvicidal, ovicidal and adulticidal activities of nereistoxin were assayed for their toxicity against three important vec ... | 2011 | 21472401 |
| larvicidal activities of six plants extracts against two mosquito species, aedes aegypti and anopheles stephensi. | larvicidal activity of crude chloroform, dichloromethane and methanol extracts of the leaves and roots of six indian plants, aegle marmelos l., balanites aegyptica l., calotropis gigantica l., murraya koenigii l., nyctanthes arbor-tristis l. and plumbago zeylanica l., were tested against the early fourth instar larvae of aedes aegypti l. and anopheles stephensi. the larval mortality was observed after 24 h of exposure. all extracts showed moderate larvicidal effects. however, the highest larval ... | 2010 | 21399575 |
| effects of extract of soapnut sapindus emarginatus on esterases and phosphatases of the vector mosquito, aedes aegypti (diptera: culicidae). | our earlier investigations with kernels from the soapnut sapindus emarginatus revealed it as a new source of botanical biocide with potent antimosquito activity, as evident from the proven unique ability of the aqueous kernel extract to kill all the developmental stages of three important vector mosquito species, aedes aegypti, anopheles stephensi and culex quinquefasciatus. this extract was also found to be safe for two non-target aquatic insects. as a sequel to these findings, we have further ... | 2011 | 21251906 |
| larvicidal efficacy of ficus benghalensis l. plant leaf extracts against culex quinquefasciatus say, aedes aegypti l. and anopheles stephensi l. (diptera: culicidae). | to investigate the larvicidal efficacy of different extracts of ficus benghalensis l. against culex quinquefasciatus say, aedes aegypti l. and anopheles stephensi l. (diptera: culicidae). | 2010 | 20329569 |
| larvicidal activity of the extracts from different parts of the plant solanum xanthocarpum against important mosquito vectors in the arid region. | larvicidal efficacy of the aqueous and methanol extracts from green unripe and yellow ripe fruits, seeds, leaves and roots of the plant solanum xanthocarpum was evaluated against anopheles culicifacies, anopheles stephensi, aedes aegypti and culex quinquefasciatus, the important mosquito vectors prevalent in the arid region. studies were carried out on late 3rd orearly 4th instarlarvae of these species using standard who technique. based on concentration mortality data lc50 and lc90 values along ... | 2009 | 20121022 |
| relative efficacy of repellent-treated wristbands against three major mosquito (diptera: culicidae) vectors of disease, under laboratory conditions. | a laboratory study was carried out to evaluate the relative efficacy of n-n-diethyl-m-toluamide (deet)- and n,n-diethyl phenylacetamide (depa)-treated wristbands against three major vector mosquitoes viz., anopheles stephensi liston, culex quinquefasciatus say and aedes aegypti (l.), at two different concentrations viz., 1.5 and 2.0 mg/cm(2). overall, both deet and depa have shown various degrees of repellency impact against all three vector mosquitoes. deet offered the highest 317.0 min mean co ... | 2009 | 24036563 |
| larvicidal & emergence inhibitory activities of neemazal t/s 1.2 per cent ec against vectors of malaria, filariasis & dengue. | vector control, using agents of chemical origin, continues to be practiced in the control of vector borne diseases. however, due to some drawbacks including lack of selectivity, environmental contamination, and emergence and spread of vector resistance, development of natural products for vector control has been a priority in this area. in the present study we evaluated the larvicidal and emergence inhibitory activities of a neem based formulation neem azal t/s 1.2 per cent ec against the vector ... | 2009 | 19797810 |
| antimosquito activity of aqueous kernel extract of soapnut sapindus emarginatus: impact on various developmental stages of three vector mosquito species and nontarget aquatic insects. | aqueous (physiological saline) extracts of seed kernel from seven indigenous plants were initially screened for their antimosquito activity against eggs, larvae of all instars, and pupae of aedes aegypti. among various seed kernels tested, the soapnut sapindus emarginatus (sapindaceae) extract was found to exhibit, for the first time, a strong antimosquito activity as evident from its ability to inflict 100% mortality of all the developmental stages of a. aegypti. furthermore, the kernel extract ... | 2009 | 19655173 |
| evaluation of tribulus terrestris linn (zygophyllaceae) acetone extract for larvicidal and repellence activity against mosquito vectors. | acetone extracts of leaves and seeds from the tribulus terrestris (zygophyllaceae) were tested against mature and immature different mosquito vectors under laboratory condition. the extract showed strong larvicidal, properties 100 per cent mortality in the 3rd-instar larvae was observed in the bioassays with an. culicifacies giles species a, an. stephensi liston, culex quinquefasciatus say and aedes aegypti linn, against 200 ppm of the leaf acetone extract and 100 ppm seed acetone extract. the l ... | 2008 | 19579717 |
| larvicidal activity of saraca indica, nyctanthes arbor-tristis, and clitoria ternatea extracts against three mosquito vector species. | screening of natural products for mosquito larvicidal activity against three major mosquito vectors aedes aegypti, culex quinquefasciatus, and anopheles stephensi resulted in the identification of three potential plant extracts viz., saraca indica/asoca, nyctanthes arbor-tristis, and clitoria ternatea for mosquito larval control. in the case of s. indica/asoca, the petroleum ether extract of the leaves and the chloroform extract of the bark were effective against the larvae of c. quinquefasciatu ... | 2009 | 19039604 |
| larvicidal activity of neem and karanja oil cakes against mosquito vectors, culex quinquefasciatus (say), aedes aegypti (l.) and anopheles stephensi (l.). | larvicidal effect of neem (azadirachta indica) and karanja (pongamia glabra) oil cakes (individuals and combination) was studied against mosquito species. both the oil cakes showed larvicidal activity against the mosquito species tested. the combination of neem and karanja oil cakes in equal proportion proved to have better effect than the individual treatments. the combination of the two oil cakes recorded an lc95 of 0.93, 0.54 and 0.77% against the mosquitoes, culex quinquefasciatus, aedes aeg ... | 2008 | 18831329 |
| studies on mosquito larvicidal properties of eucalyptus citriodora hook (family-myrtaceae). | hexane extract obtained from leaves of eucalyptus citriodora hook was tested against larvae of anopheles stephensi liston, culex quinquefasciatus say and aedes aegypti linn to assess its toxicity and growth inhibiting activity. the results showed better activity of hexane extract against larvae of an. stephensi liston as compared to the larvae of cx. quinquefasciatus say and ae. aegypti linn. the lc50 values against ivth instar larvae of three species were 69.86, 81.12 & 91.76 ppm respectively a ... | 2007 | 18697593 |
| mosquito larvicidal activity of oleic and linoleic acids isolated from citrullus colocynthis (linn.) schrad. | in mosquito control programs, botanical origin may have the potential to be used successfully as larvicides. the larvicidal activity of crude acetone, hexane, ethyl acetate, methanol, and petroleum ether extracts of the leaf of centella asiatica linn., datura metal linn., mukia scabrella arn., toddalia asiatica (linn.) lam, extracts of whole plant of citrullus colocynthis (linn.) schrad, and sphaeranthus indicus linn. were assayed for their toxicity against the early fourth instar larvae of cule ... | 2008 | 18688644 |
| insecticidal activity of valeriana jatamansi (valerianaceae) against mosquitoes. | a root extract of valeriana jatamansi (code bal-o) exhibited larvicidal and adulticidal activity against different mosquito species. the median lethal concentration (lc50) of bal-o against larvae of anopheles stephensi, anopheles culicifacies, aedes aegypti, aedes albopictus, and culex quinquefasciatus were 68.1, 42.8, 51.2, 53.8, and 80.6 mg/liter, respectively. the lc50 and the 90% lethal concentration against adult an. stephensi, an. culicifacies, ae. aegypti, ae. albopictus, and cx. quinquef ... | 2008 | 18666542 |
| mosquito larvicidal activity of gluanol acetate, a tetracyclic triterpenes derived from ficus racemosa linn. | the larvicidal activity of crude hexane, ethyl acetate, petroleum ether, acetone, and methanol extracts of the leaf and bark of ficus racemosa (moraceae) was assayed for their toxicity against the early fourth-instar larvae of culex quinquefasciatus (diptera: culicidae). the larval mortality was observed after 24-h exposure. all extracts showed moderate larvicidal effects; however, the highest larval mortality was found in bark acetone extract of f. racemosa. in the present study, bioassay-guide ... | 2008 | 18437423 |
| larvicidal activities of some organotin compounds on mosquito larvae: a qsar study. | mosquitoes are not only the cause of nuisance by their bites but also transmit deadly diseases like malaria, filariasis, yellow fever, dengue, and japanese encephalitis. in this paper, nine qsar models were developed using different series of organotins with respect to their larvicidal activities against aedes aegypti and anopheles stephensi mosquito larvae. internal [cross-validation (loo-q(2)), quality factor (q), fischer statistics (f), and y-randomization] and external validation tests have ... | 2009 | 18423942 |
| larvicidal activity of leaf extract of millingtonia hortensis (family: bignoniaceae) against anopheles stephensi, culex quinquefasciatus and aedes aegypti. | | 2008 | 18399320 |
| effect of bioactive fractions of citrullus vulgaris schrad. leaf extract against anopheles stephensi and aedes aegypti. | the benzene extract of citrullus vulgaris was tested against anopheles stephensi and aedes aegypti for the larvicidal activity and ovicidal properties. the crude benzene extract was found to be more effective against a. stephensi than a. aegypti. the lc50 values were 18.56 and 42.76 ppm respectively. the lc50 values for silica gel fractions (bioactive fractions i, ii, iii and iv) were 11.32, 14.12, 14.53 and 16.02 ppm respectively. the mean per cent hatchability of the egg rafts were observed af ... | 2008 | 18176817 |
| chemical composition and larvicidal activities of the essential oil of zanthoxylum armatum dc (rutaceae) against three mosquito vectors. | in view of the recently increased interest in developing plant origin insecticides as an alternative to chemical insecticide, this study was undertaken to assess the larvicidal potential of the essential oil from the seeds of zanthoxylum armatum dc [syn. z. alatum roxb] (rutaceae) against three medically important species of mosquito vectors, aedes aegypti, anopheles stephensi and culex quinquefasciatus. | 2007 | 17896622 |
| efficacy of lagenidium giganteum metabolites on mosquito larvae with reference to nontarget organisms. | lagenidium giganteum is a water mold and an effective mosquito control agent with limited use due to poor survival and contamination during storage. invert extracellular metabolites of l. giganteum is easy to produce, long shelf life, and a potential candidate in tropical climates. this fungus was grown in pyg broth in the laboratory at 25 +/- 2 degrees c, and relative humidity was maintained at 75 +/- 5% for 15 +/- 2 days. filtration process of metabolites was done using whatman filter paper, c ... | 2007 | 17334944 |
| composition and larvicidal activity of leaves and stem essential oils of chloroxylon swietenia dc against aedes aegypti and anopheles stephensi. | the laboratory bioassay of the essential oil and the isolated compounds from chloroxylon swietenia against aedes aegypti and anopheles stephensi was carried out to evaluate the larvicidal activity. lc50 value estimated for a. aegypti and an. stephensi were 16.5 and 14.9 microg/ml and 20.2 and 19 microg/ml for leaf and stem oils, respectively. the three sesquiterpenes pregeijerene, geijerene and germacrene d were isolated and their larvicidal activity was evaluated. pregeijerene and geijerene wer ... | 2006 | 16815011 |
| laboratory study on larvicidal properties of leaf extract of calotropis procera (family-asclepiadaceae) against mosquito larvae. | fresh leaf extract of milkweed (calotropis procera) showed larvicidal properties against mosquito larvae of anopheles stephensi, culex quinquefasciatus and aedes aegypti. methanolic extracts of the same plant were, however, more effective as larvicide. c. procera is a weed growing in uncultivated soils as well as in dry, arid zones in indian subcontinent throughout the year. the results of this study suggest the utility of milkweed as potential technology for control of mosquito larvae. | 2005 | 16749273 |
| comparative efficacy and persistency of permethrin in olyset net and conventionally treated net against aedes aegypti and anopheles stephensi. | the efficacy of the olyset net was compared to a net treated conventionally with permethrin 10% emulsifiable concentrate at the world health organization recommended dose. the nets were assessed under laboratory conditions against the mosquito vectors aedes aegypti and anopheles stephensi. knockdown efficacy for the olyset net was assessed after the first 10 washings and then after the 15th and 20th washings. data were not collected for the conventionally treated netting after 5 washings because ... | 2006 | 16646331 |
| ultra low volume aerosol application of deltacide (deltamethrin 0.5% w/v, s-bioallethrin 0.71% w/v & piperonyl butoxide 8.9% w/v) against mosquitoes. | insecticide in the form of space spray as an ultra low volume (ulv) aerosol are used during epidemics of vector borne diseases. deltacide, a formulation comprising of three chemicals viz., deltamethrin 0.5 per cent w/v, s-bio-allethrin 0.71 per cent w/v and piperonyl butoxide 8.9 per cent w/v is suitable for ulv application. as this combination is found to be effective in preventing resistance development tackling the population, which had already developed resistance and cause immediate mortali ... | 2006 | 16567869 |
| effect of food on immature development, consumption rate, and relative growth rate of toxorhynchites splendens (diptera: culicidae), a predator of container breeding mosquitoes. | food utilization by the larvae of toxorhynchites splendens (wiedemann) was studied in the laboratory by offering larvae of aedes aegypti linnaeus, anopheles stephensi (liston), and culex quinquefasciatus (say). quantitative analyses of data indicated that immature development was significantly faster with increase in food availability. the regression analysis showed that the degrees of the relationship between immature duration (id) and food availability were higher when offered early instars of ... | 2005 | 16444422 |
| bioengineering of a cellulosic fabric for insecticide delivery via grafted cyclodextrin. | beta-cyclodextrin (beta-cd) can be easily grafted onto cellulosic textiles through covalent bonds. in such a way beta-cd empty cavities provide an efficient tool for entrapping different kinds of hydrophobic molecules on the surface of the fabric and releasing them slowly in time. the capability of cyclodextrins to include hydrophobic molecules such as fragrances, antimicrobial agents, and other chemicals can be then exploited to produce new grafted textiles with peculiar and useful performances ... | 2013 | 16321057 |
| predatory potential of nepa cinerea against mosquito larvae in laboratory conditions. | biocontrol potential of nepidae bug, nepa cinerea against immature stages of anopheles stephensi, anopheles culicifacies, culex quinquefasciatus and aedes aegypti was studied under laboratory conditions. it was found that n. cinerea had the highest predation against an. stephensi followed by an. culicifacies, cmx quinquefasciatus and ae. aegypti. from the analysis, it was found that n. cinerea has good predation efficacy. it can be used as a biological control agent to control of mosquito breedi ... | 2004 | 16295671 |
| laboratory bio-assay of temephos and fenthion against some vector species of public health importance. | laboratory studies carried out using temephos and fenthion, two commonly used larvicides under urban malaria scheme (nmep) and nfcp for the control of mosquito larvae. the results revealed that the lc50 and lc90 values for temephos against aedes aegypti 0.0177 and 0.0559, anopheles stephensi 0.0148 and 0.0472, culex quinquefasciatus 0.0157 & 0.0480 and for culex vishnui group of mosquitoes 0.043 & 0.0118 ppm respectively. the results obtained revealed that there is a 62.8 & 94.12 times increase ... | 2004 | 16295670 |
| assessment of laboratory and field assays of sunlight-induced killing of mosquito larvae by photosensitizers. | the effectiveness of light-induced killing of mosquito larvae in the presence of photosensitizers was studied with larvae of aedes aegypti (l.), anopheles stephensi (liston), and culex quinquefasciatus say grown in the laboratory and of cx. quinquefasciatus grown under field conditions. tested photosensitizers included xanthene, chlorin, and porphyrin derivatives. all the larvae were treated at the fourth instar. preliminary laboratory experiments showed a light-induced lethal effect of rose ben ... | 2005 | 16119556 |
| isolation and identification of mosquito bite deterrent terpenoids from leaves of american (callicarpa americana) and japanese (callicarpa japonica) beautyberry. | essential oil extracts from callicarpa americana and callicarpa japonica were investigated. bioassay-guided fractionation of c. americana extracts using the yellow fever mosquito, aedes aegypti, led to the isolation of alpha-humulene, humulene epoxide ii, and intermedeol and a newly isolated terpenoid (callicarpenal). similar work involving c. japonica resulted in the isolation of an additional compound, spathulenol, as well as the four compounds isolated from c. americana. structure elucidation ... | 2005 | 16028979 |
| larvicidal activity of tagetes patula essential oil against three mosquito species. | larvicidal activity of tagetes patula essential oil was tested against the fourth instar larvae of aedes aegypti, anopheles stephensi, and culex quinquefaciatus. five different concentrations of essential oil were studied and the results were compared with that of synthetic insecticide, malathion. a. aegypti (lc(50) 13.57, lc(90) 37.91) was most susceptible followed by an. stephensi (lc(50) 12.08, lc(90) 57.62) and c. quinquefaciatus (lc(50) 22.33, lc(90) 71.89). | 2005 | 15734310 |
| laboratory studies on the predatory potential of dragon-fly nymphs on mosquito larvae. | biocontrol potential of dragonfly nymph, brachythemis contaminata fabricius against the larvae of anopheles stephensi, culex. quinquefasciatus and aedes aegypti was studied under laboratory conditions. it was found that dragonfly nymph had highest predation efficacy against an. stephensi followed by cx. quinquefasciatus and ae. aegypti. feeding rate increased with decrease in prey size/stage. analysis of data indicated that dragonfly nymphs have good predatory potential and can be used as a biol ... | 2003 | 15562955 |
| photoelectric sensing device for recording mosquito host-seeking behavior in the laboratory. | a new automatic device for recording the host-seeking behavior of mosquitoes was designed using photoelectric sensors. the host-seeking rhythms of several species of mosquitoes were recorded under laboratory conditions. use of co2, in addition to heating and black color to activate mosquito flight, proved to be important for evaluation of the present recording device. the diel rhythms of nonblood-fed aedes albopictus (skuse), aedes aegypti (l.), culex quinquefasciatus say, culex tritaeniorhynchu ... | 2004 | 15535615 |
| mosquito larvicidal properties of essential oil of an indigenous plant, ipomoea cairica linn. | laboratory bioassay of the essential oil extracted from an indigenous plant, ipomoea cairica, commonly known as 'railway creeper', was carried out against the larvae of four vector species of mosquitoes in order to evaluate its mosquito larvicidal effect. bioassay test revealed that the essential oil of the plant possess remarkable larvicidal properties as it could induce 100% mortality in the larvae of culex tritaeniorhynchus (100 ppm), aedes aegypti (120 ppm), anopheles stephensi (120 ppm), an ... | 2004 | 15329451 |
| in vitro repellency of n,n-diethyl-3-methylbenzamide and n,n-diethylphenylacetamide analogs against aedes aegypti and anopheles stephensi (diptera: culicidae). | seventeen analogs of the repellent compounds n,n-diethyl-3-methylbenzamide (deet) and n,n-diethylphenylacetamide (depa) were evaluated in vitro for repellency against laboratory-reared aedes aegypti (l.) and anopheles stephensi liston mosquitoes by using a modified membrane blood feeding test system. the system was a valuable tool for comparing the effective concentrations of the repellent analogs. additionally, this method used easily controlled test conditions, allowing completion of the many ... | 2004 | 15185946 |
| laboratory evaluation of methanolic extract of atlantia monophylla (family: rutaceae) against immature stages of mosquitoes and non-target organisms. | methanolic extracts of the leaves of atlantia monophylla (rutaceae) were evaluated for mosquitocidal activity against immature stages of three mosquito species, culex quinquefasciatus, anopheles stephensi, and aedes aegypti in the laboratory. larvae of cx. quinquefasciatus and pupae of an. stephensi were found more susceptible, with lc50 values of 0.14 mg/l and 0.05 mg/l, respectively. insect growth regulating activity of this extract was more pronounced against ae. aegypti, with ei50 value 0.00 ... | 2004 | 15057359 |
| relative efficacy of five synthetic pyrethroids against four vector mosquitoes, anopheles culicifacies, anopheles stephensi, culex quinquefasciatus and aedes aegypti. | | 2013 | 14686108 |
| the peritrophic matrix limits the rate of digestion in adult anopheles stephensi and aedes aegypti mosquitoes. | the peritrophic matrix (pm) is a chitin-containing acellular sheath that surrounds the blood meal and separates the food bolus from the midgut epithelium. intense molecular traffic through the pm occurs during digestion. digestive enzymes secreted by the midgut epithelium must traverse the pm to reach their substrates in the food bolus, and digestion products must cross the pm in the opposite direction to be absorbed by the epithelial cells. here we report that the pm limits the rate of digestio ... | 2003 | 14511821 |
| comparison of the mosquito-repelling efficacy of methyl neodecanamide (mnda) to that of deet. | the objective of this small pilot study was to assess the mosquito-repelling efficacy of methyl neodecanamide (mnda) relative to n,n-diethyl-3-methylbenzamide (deet) against anopheles stephensi, culex quinquefasciatus, and aedes aegypti under controlled laboratory conditions. in this study, subjects inserted both forearms (sham- and repellent-treated) into a test chamber containing 50 female mosquitoes. the number of mosquitoes landing on or probing each forearm during the 5-minute "forced-choic ... | 2006 | 12858227 |
| effect of feronia limonia on mosquito larvae. | bioassay guided fractionation of the acetone extract of feronia limonia dried leaves afforded a potent mosquito larvicide, identified as n-hexadecanoic acid and found to be effective against fourth instar larvae of culex quinquefasciatus, anopheles stephensi and aedes aegypti, with lc50 of 129.24, 79.58 and 57.23 ppm, respectively. | 2000 | 11449505 |
| evaluation of cyfluthrin and fenfluthrin for their insecticidal activity against three vector mosquitoes. | the ec50/ec90 concentrations of cyfluthrin and fenfluthrin were tested for their activity against different developmental stages of three important vector mosquitoes viz., anopheles stephensi liston, aedes aegypti (linn.) and culex quinquefasciatus say. the ec90 concentrations of both cyfluthrin and fenfluthrin showed ovicidal effect on an. stephensi and ae. aegypti whereas ec90 of cyfluthrin checked the hatching of eggs completely in cx. quinquefasciatus. fenfluthrin at ec50 concentration reduc ... | 1999 | 10810595 |
| influence of igr treatment on oviposition of three species of vector mosquitos at sublethal concentrations. | sublethal effect of hexaflumuron, an insect growth regulator (igr), on the oviposition of three species of vector mosquitos. culex quinquefasciatus, aedes aegypti and anopheles stephensi was studied. significant reduction in oviposition was observed in the females of the above three species derived from fourth instar larvae and pupae exposed to sublethal (ei5 and ei50) doses. the reduction in egg laying is proportional to the dose of exposure and was found to be about twice higher in females of ... | 1999 | 10695811 |
| curcuma raktakanda is a potential larvicide for mosquito control. | the leaves and tuber of curcuma raktakanda were investigated as a mosquito larvicide against the early fourth instar larvae of four mosquito species, viz., culex quinquefasciatus , culex sitiens , aedes aegypti and anopheles stephensi . the petroleum ether extract of the leaves and tuber exhibited toxicity towards all the test species. the lc 90 values of leaf extract for cx. quinquefasciatus , cx. sitiens , ae. aegypti and an. stephensi were 46.77, 27.45, 58.75 and 45.81 mg/l,respectively. the ... | 2000 | 21214456 |
| laboratory evaluation of ai3-37220, ai3-35765, cic-4, and deet repellents against three species of mosquitoes. | four repellents, n,n-diethyl-3-methyl-benzamide (deet), 2-hydroxy-methyl-cyclohexyl acetic acid lactone (cic-4), and 2 piperidines (1-[3-cyclohexen-1-ylcarbonyl] piperidine [ai3-35765] and 1-[3-cyclohexen-1-ylcarbonyl]-2-methylpiperidine [ai3-37220]) were evaluated alone and in combination against aedes aegypti, anopheles stephensi, and culex quinquefasciatus using a modified in vitro test system. this method was a valuable tool for comparing effective concentrations of the new compounds. becaus ... | 1999 | 10480126 |
| seasonal prevalence of anopheles stephensi larvae and existence of two forms of the species in an urban garden in calcutta city. | a study on the occurrence and seasonal prevalence of anopheles stephensi (principal vector of malaria in calcutta) larvae in an urban garden in central calcutta revealed their presence in collections of fresh and/or rain water in various kinds of temporary and permanent breeding habitats. breeding sites in shady areas were preferred in comparison to those receiving direct sunlight. the density of an. stephensi larvae was highest in earthen and lowest in wooden pots throughout the study period, a ... | 1998 | 10319556 |
| relative efficacy of synthetic pyrethroid-impregnated fabrics against mosquitoes under laboratory conditions. | the efficacy of synthetic pyrethroid-impregnated fabrics was evaluated against anopheles stephensi, aedes aegypti, and culex quinquefasciatus, under laboratory conditions. results revealed that delta-methrin was significantly superior in comparison to lambdacyhalothrin and cyfluthrin. results of bioassay tests revealed that deltamethrin was 1.5 and 1.9 times more effective than lambdacyhalothrin and cyfluthrin, respectively, against an. stephensi exposed to cotton fabric treated at 100 g/m2. del ... | 1998 | 10084134 |
| evaluation of repellent activities of cymbopogon essential oils against mosquito vectors of malaria, filariasis and dengue fever in india. | essential oils of four species and two hybrid varieties of cymbopogon grasses were evaluated for their repellent properties against the major vector mosquitoes, namely, anopheles stephensi, culex quinque-fasciatus and aedes aegypti, both in laboratory and field. the magnitude of repellency in the cymbopogon essential oils was found to be of moderate to high order. all grass species protected completely from mosquito bites for 4 hrs, whereas c. nardus provided protection for as much as 8-10 hrs o ... | 1998 | 23195906 |
| laboratory evaluation of the biocontrol potential of mesocyclops thermocyclopoides (copepoda: cyclopidae) against mosquito larvae. | biocontrol potential of mesocyclops thermocyclopoides against first instar larvae of anopheles stephensi, aedes aegypti and culex quinquefasciatus was studied under laboratory conditions. it was found that m. thermocyclopoides had the highest predation efficacy against ae. aegypti followed by an. stephensi and cx. quinquefasciatus. there was a significant reduction in the predation efficacy of m. thermocyclopoides against cx. quinquefasciatus in the presence of alternate food (p < 0.01). the cag ... | 1997 | 9656415 |
| an equipment for the study of behavioural responses of mosquitoes to residual application of synthetic insecticides. | excito-repellency (e-r) test box was developed to study under laboratory conditions the refractory behaviour of mosquitoes to residual application of synthetic insecticides. the observations obtained through the equipment were compared with another behavioural study of mosquitoes using standard who irritability test kit. during 16 hour exposure period there was restricted entry of mosquitoes in ddt treated chamber of e-r test box for all mosquito species tested (anopheles stephensi, aedes aegypt ... | 1997 | 9465527 |
| adaptive larval thermotolerance and induced cross-tolerance to propoxur insecticide in mosquitoes anopheles stephensi and aedes aegypti. | fourth-instar larvae of mosquitoes anopheles stephensi and aedes aegypti normally died within 90 min at 43 degrees c. pre-exposure to high but sublethal temperatures conferred adaptive thermotolerance, dependent on the temperature and the duration of pre-exposure. adaptive cross-tolerance to propoxur (a carbamate insecticide) was also induced in larvae by pre-exposing them to sublethal temperatures. pre-exposure to sublethal concentrations of propoxur was found to confer cross-thermotolerance to ... | 1996 | 8887340 |
| toxicity of insecticides to toxorhynchites splendens and three vector mosquitos and their sublethal effect on biocontrol potential of the predator. | toxicity of six larvicides ie fenthion, temephos, malathion, deltamethrin, alphamethrin (fendona), oms 3031 and five adulticides ie malathion, fenitrothion, propoxur, deltamethrin, permethrin to aedes aegypti, culex quiquefasciatus, anopheles stephensi and the predator, toxorhynchites splendens was studied for evaluating safety margin. concentrations of alphamethrin that killed 50% larvae of t. splendens were 53 and 12 times more than that which killed cx. quinquefasciatus and ae. aegypti. in ca ... | 1996 | 9031419 |
| electrophysiological responses of receptor neurons in mosquito maxillary palp sensilla to carbon dioxide. | sensilla basiconica on the maxillary palps of female aedes aegypti contain a receptor neuron which produces a phasic-tonic pattern of action potential response to low concentrations (150-300 ppm) of carbon dioxide (co2), a stimulus known to be involved with host seeking behavior. these receptor neurons respond reliably to small increments in co2 concentration (e.g., 50 ppm). we were particularly interested in evaluating the possibility that the sensitivity to step increases in co2 concentration ... | 1995 | 7674195 |
| isolation of the insecticidal components of tagetes minuta (compositae) against mosquito larvae and adults. | application of tagetes minuta floral extract to silica gel column chromatography produced 2 fractions with the hydrogenate part 20-30 times more toxic to larvae and 12-13 times more toxic to adults of aedes aegypti and anopheles stephensi, respectively, than the oxygenate part. further fractionation by column chromatography of the hydrogenate fraction produced 4 thiophenes, 5-(but-3-ene-1-ynyl)-2,2'-bithiophene, 5-(but-3-ene-1-ynyl)-5'-methyl-2,2'-bithiophene, 2,2',5',2"-terthiophene, and 5-meth ... | 1995 | 8551298 |
| cloning, sequencing and functional expression of an acetylcholinesterase gene from the yellow fever mosquito aedes aegypti. | a degenerate pcr strategy was used to isolate a fragment of the acetylcholinesterase gene (ace) homolog from aedes aegypti and screen for a cdna clone containing the complete open reading frame of the gene. the predicted amino acid sequence of the aedes gene shares 64% identity with ace from drosophila and 87% identity with the acetylcholinesterase gene from another mosquito species anopheles stephensi. high levels of expression of the aedes gene were achieved by infection of sf21 cells with a r ... | 1995 | 7635199 |
| control of mosquito breeding using wood scrapings treated with neem oil. | wood scrapings were given shape of a ball and soaked in 5, 10 and 20% neem (azadirachta indica) oil diluted in acetone. control of anopheles stephensi and aedes aegypti breeding in water storage overhead tanks (ohts) with the application of these balls was achieved for 45 days. two balls soaked in 5% neem oil produced the best results among other concentrations tested. | 1995 | 7589730 |
| time to death from starvation and compulsive killing by the larvae of toxorhynchites splendens (diptera: culicidae). | time to death from starvation and compulsive killing without eating of the prey by larvae of toxorhynchites splendens were studied in the laboratory. the first and second instars survived without food for 3 days while third and fourth instars survived for 7.8 and 14 days, respectively. when the corresponding instars of aedes aegypti, anopheles stephensi or culex quinquefasciatus were offered, the number of prey killed but not eaten ranged from 0 to 15 per 40 prey larvae. compulsive killing of ae ... | 1994 | 7887340 |
| toxicity of extracts from three tagetes against adults and larvae of yellow fever mosquito and anopheles stephensi (diptera: culicidae). | whole-plant soxhlet extractions for the three tagetes species showed that t. minuta had the greatest biocidal effect on the larvae and adults of aedes aegypti (l.) and anopheles stephensi liston. bioassays of simultaneous steam distillation extractions of the various parts of t. minuta found extracts from the flowers provided ld90s of 4 and 8 ppm against the larvae and 0.4 and 0.45% against the adults of a. aegypti and a. stephensi, respectively. further research on t. minuta floral extracts as ... | 1994 | 7815394 |
| sensory bases of attractancy: morphology of mosquito olfactory sensilla-- a review. | the internal and external ultrastructure of virtually all of the olfactory sensilla of the mosquitoes aedes aegypti and anopheles stephensi have been described. many other mosquitoes have had their olfactory complements partially described. this review summarizes ultrastructural features and suspected biological roles of the small sensilla coeloconica, large sensilla coeloconica, sensilla ampullaceae, grooved pegs and sensilla trichodea of mosquito antennae, and the capitate pegs of mosquito pal ... | 1994 | 8965084 |
| effect of ambrosia maritima on anopheles stephensi and aedes aegypti. | the toxicity of the molluscicidal plant ambrosia maritima l. was evaluated against anopheles stephensi and aedes aegypti. in the larvicidal assays a negligible mortality was observed in both species after application of the dried leaves in the water at concentrations up to 2000 mg/l. when the powdered leaves were applied at the surface of the water, however, up to 38% of the larvae of a. stephensi were killed at 2000 mg/l. virtually no inhibitory effect on the larval growth of both species was n ... | 1994 | 8046947 |
| evaluation of emd vaporizers and bioallethrin vaporizing mats against mosquito vectors. | different electric-mat-device (emd) vaporizers and bioallethrin impregnated mats were evaluated for the knockdown and mortality in the adults of culex quinquefasciatus, anopheles stephensi and aedes aegypti. percentage knockdown of 80-100 was recorded throughout the test period of 11 hours. however, the percentage mortality observed was not appreciable in all types of emd vaporizers. device "a" was found to be effective only against ae. aegypti. devices "c" and "d" showed moderate effects agains ... | 1992 | 1488702 |
| comparative efficacy of aphid extracts and some juvenoids against the development of mosquitoes. | comparative efficacy of natural juvenile hormones extracted from aphis craccivora and a. gosypii and 5 juvenoids, i.e., methoprene, neporex, oms 3007, oms 3019 and dpe-28 on the development of aedes aegypti, anopheles stephensi and culex quinquefasciatus have been evaluated. oms 3007, oms 3019, dpe-28 and neporex show species specific related activities, while methoprene and aphid extracts do not show such activity against these mosquito species. treatment of mosquito eggs with an ec50 dose of t ... | 1992 | 1402861 |
| cannibalism and carnivory in toxorhynchites splendens (diptera: culicidae). | laboratory reared larvae of toxorhynchites splendens, which were previously starved for 24 hours, cannibalized eggs of their own kind or preyed upon the eggs of other species (aedes aegypti and anopheles stephensi) present on the surface of water in small containers. second and third instars consumed eggs faster than first and fourth instars. the first instar consumed larvae of its own kind faster than the other instars, in the absence of other prey. however, when prey larvae were provided, ther ... | 1992 | 1362626 |
| influence of short time exposure to an insect growth regulator, hexaflumuron, on mortality and adult emergence of vector mosquitoes. | hexaflumuron, an insect growth regulator (igr), was found to greatly affect the development of immatures and emergence of adults of three species of vector mosquitoes, culex quinquefasciatus, aedes aegypti and anopheles stephensi, when larvae were subjected to short time exposure of < or = 1 h. this igr could completely prevent adult emergence even at a minimum exposure time of 10 min at 0.001, 0.01 and 0.1 mg/l. on treatment, larval and pupal mortality as well as varying degrees of morphogeneti ... | 2007 | 1308571 |
| tralomethrin (oms-3048), a new synthetic pyrethroid against vector mosquitoes. | tralomethrin (oms-3048) a synthetic pyrethroid, was tested for its insecticidal properties in the laboratory against normal strains of culex quinquefasciatus, cx. tritaeniorhynchus, cx. sitiens, anopheles stephensi, an. culicifacies, aedes aegypti and armigeres subalbatus and against strains of cx. quinquefasciatus resistant to fenthion and malathion. tralomethrin showed good larvicidal activity against all the species tested. lc50 ranged between 7.00 x 10(-6) and 9.10 x 10(-3) mg (ai)/l. resist ... | 1991 | 1688021 |
| involvement of mono-oxygenases as a major mechanism of deltamethrin-resistance in larvae of three species of mosquitoes. | role of mono-oxygenases as a mechanism of resistance to the synthetic pyrethroid, deltamethrin in the larvae of culex quinquefasciatus say, aedes aegypti l. and anopheles stephensi liston developed by laboratory selections with deltamethrin, ddt or deltamethrin and the synergist, piperonyl butoxide (pbo) in the ratio of 1:5, was investigated. there was a significant correlation with mono-oxygenase activity and larval lc50 to deltamethrin in various strains of all the three species. in addition, ... | 1991 | 1678732 |
| resistance of permethrin to weathering in fabrics treated for protection against mosquitoes (diptera: culicidae). | two different methods of treating cotton and nylon-cotton fabrics with permethrin were evaluated for protection from mosquito bites after laboratory weathering. cotton fabric treated by the individual dynamic absorption method provided consistently better protection than cotton fabric treated by the aerosol method. the nylon-cotton fabric provided similar protection regardless of the treatment method. after weathering, the toxic effects of both types of permethrin-treated fabrics treated by both ... | 1990 | 1974929 |
| insecticidal activity of carbosulfan (oms 3022) and pyraclofos (oms 3040) against mosquitoes. | carbosulfan (oms 3022), a carbamate and pyraclofos (oms 3040), an organophosphate were evaluated for their biological activity against vector mosquitoes, both in laboratory and field conditions. carbosulfan (25% ec), was found to be active against adults and immatures of culex quinquefasciatus, anopheles stephensi and aedes aegypti. the ld values for adults were 6.65, 5.19 and 8.35 micrograms/cm2 and lc 50values for immatures were 5.4 x 10(-5), 1.6 x 10(-4 and 5.4) x 10(-4) 50mg/1 respectively. ... | 1990 | 1983012 |
| structure-activity relationships in diphenyl ethers for insect growth regulating activity against mosquitoes. | out of the 30 substituted diphenyl ethers synthesized and tested for insect growth regulating (igr) activity against mosquitoes, three compounds viz., dpe-16, 19 and 28 showed promising igr activity. while dpe-16 and 19 were found to be effective against all three vector species tested viz., culex quinquefasciatus, aedes aegypti and anopheles stephensi, with the respective ei50 values of 0.1485, 0.3650, 0.2225 mg/l and 0.1474, 0.1392, 0.1145 mg/l, dpe-28 was found to be highly effective against ... | 1989 | 2576420 |
| effects of weathering on fabrics treated with permethrin for protection against mosquitoes. | permethrin-impregnated and untreated fabrics were evaluated for their toxic and repellent effects against anopheles stephensi and aedes aegypti after both types of fabrics were subjected to accelerated weathering for 9 weeks, under a simulated wet/tropical environment. the toxic (knockdown) effect of permethrin-impregnated fabrics against both species of mosquitoes diminished rapidly after 1 week compared to the repellent effect. after 6 weeks of weathering, the remaining low amounts of permethr ... | 1989 | 2568392 |
| toxicity, localization and elimination of the phototoxin, alpha-terthienyl, in mosquito larvae. | mosquito larvae were examined to determine interspecific and interstrain differences in susceptibility to the larvicidal effects of the plant-derived phototoxin, alpha-terthienyl (alpha-t). the lc50 values were as follows: aedes aegypti, 4 ppb; ae. epactius, 6 ppb; anopheles stephensi, 14 ppb; malathion-susceptible culex tarsalis (s), 12 ppb; malathion-resistant cx. tarsalis (r), 16 ppb. fluorescence studies indicated localization of alpha-t in the midgut epithelium and in the lumen of malpighia ... | 1988 | 2906359 |
| laboratory study on the mosquito larvicidal properties of leaf and seed extract of the plant agave americana. | experiments on the leaf extract tested against three mosquito species led to 100% mortality of stage 4 anopheles, aedes and culex larvae at a concentration of 0.08% within 24-48 h, whereas 100% mortality of stage 1 larvae occurred at lower concentrations: 0.0032% for aedes aegypti, 0.016% for culex quinquefasciatus and 0.08% for anopheles stephensi, and was more rapid. at the end of 24 h, the highest dilution of the seed extract studied (1:200) produces a larval mortality of 100% for anopheles a ... | 1987 | 2882030 |
| efficacy of arosurf--a monomolecular surface film, in controlling culex quinquefasciatus say, anopheles stephensi liston & aedes aegypti (l). | | 1986 | 2874113 |
| peritrophic membranes and protease activity in the midgut of the malaria mosquito, anopheles stephensi (liston) (insecta: diptera) under normal and experimental conditions. | formation and solubility of the peritrophic membranes (pm) in the midgut (stomach) of female anopheles stephensi depended on salt concentration in the gut lumen. high calcium drastically reduced the solubility of the pm in vitro. thin-layer chromatography revealed the presence of n-acetylgalactosamine and galactose in the pm. in contrast to aedes aegypti no n-acetylglucosamine was present indicating significant differences between anopheles and aedes mosquitoes with respect to pm formation and c ... | 1983 | 6345801 |
| susceptibility of culex quinquefasciatus, aedes aegypti, anopheles culicifacies and anopheles stephensi against insecticides. | | 1982 | 7106890 |
| evaluation of methoprene (a juvenile hormone) against culex quinquefasciatus, anopheles stephensi and aedes aegypti. | | 1981 | 7309181 |
| infection of anopheles stephensi and aedes aegypti cell lines with arboviruses isolated from anopheline mosquitoes. | | 1971 | 5092402 |
| [morphologic study of larval development of foleyella candezei in anopheles stephensi and aedes aegypti]. | | 2000 | 5431905 |
| ipomoea batatas (convolvulaceae)-mediated synthesis of silver nanoparticles for controlling mosquito vectors of aedes albopictus, anopheles stephensi, and culex quinquefasciatus (diptera:culicidae). | we proposed an effective and eco-friendly control of dengue, malaria, and filariasis-causing vectors. we tested ipomoea batatas leaves-mediated silver nanoparticles (agnps) against first to fourth instar larvae and adults of aedes albopictus, anopheles stephensi, and culex quinquefasciatus at different concentrations. the synthesized agnps showed broad spectrum of larvicidal and adulticidal effects after 48 h of exposure. the characterization of synthesized agnps was done using various spectral ... | 2016 | 27929364 |
| larvicidal activities of knema attenuata (hook. f. & thomson) warb. (myristicaceae) extracts against aedes albopictus skuse and anopheles stephensi liston. | in recent years, uses of environment friendly and biodegradable natural insecticides of plant origin have received renewed attention as agents for vector control. the present study was undertaken to investigate the effect of aril and kernel extracts of knema attenuata (hook. f. & thomson) warb. (myristicaceae) on larvae of aedes albopictus skuse and anopheles stephensi liston under laboratory conditions. the aril was extracted with chloroform and ethanol; the kernel was extracted with ethanol an ... | 2011 | 21559763 |
| maintaining mosquito colonies of aedes atropalpus and anopheles stephensi with less than 5 hours labor per month. | | 1970 | 5415456 |
| mosquito larvicidal activity of some common spices and vegetable waste on culex quinquefasciatus and anopheles stephensi. | to investigate the larvicidal activities of crude and chloroform: methanol (1:1 v/v) extracts of some common spices (cuminum cyminum, allium sativum, zingiber offinale, curcuma longa) and vegetable waste (solanum tuberosum germinated tuber) against anopheles stephensi and culex quinquefasciatus mosquito larvae. | 2011 | 21771472 |
| effect of volatiles from neem and other natural products on gonotrophic cycle and oviposition of anopheles stephensi and an. culicifacies (diptera: culicidae). | the gonotrophic cycle of female anopheles was impaired by exposure to volatiles of neem, (azadirachta indica), reetha, (sapindus mukorossi), and garlic, (allium sativum), but not to castor seeds and cotton seed oil. a brief exposure to contact or volatile extracts from neem suppressed rather than inhibited oviposition. complete inhibition of oviposition was observed by exposure of mosquitoes to neem oil and 1 fraction containing volatile components. vitellogenesis was impaired irreversably by lo ... | 1996 | 8742520 |
| larvicidal and chemosterilant activity of annona squamosa alkaloids against anopheles stephensi. | alkaloids isolated from annona squamosa have shown larvicidal growth-regulating and chemosterilant activities against anopheles stephensi at concentrations of 50 to 200 ppm. adults exposed as larvae to different treatments showed reduced fecundity and fertility in females. mortality in the larvae, pupae and adults produced about a 52-92% decrease in the laboratory experiment. the total developmental period was slightly reduced from the control. treatment with the alkaloids had a significant effe ... | 1993 | 8468579 |
| resurrection of two species from synonymy of anopheles (nyssorhynchus) strodei root, and characterization of a distinct morphological form from the strodei complex (diptera: culicidae). | anopheles albertoi unti and anopheles arthuri unti are revived from the synonymy with anopheles strodei root, and a distinct morphological form (designated in this study as anopheles cp form) from the strodei complex of anopheles (nyssorhynchus) is characterized. the male genitalia of an. arthuri and an. albertoi are described and illustrated for the first time. an. strodei, an. arthuri, and an. albertoi were first distinguished based on scanning electron microphotos of the eggs, and then each e ... | 2010 | 20695266 |
| [comparative observations on the biology of anopheles atroparvus and anopheles stephensi under laboratory conditions]. | | 1962 | 14472385 |
| predicting the potential distribution of main malaria vectors anopheles stephensi, an. culicifacies s.l. and an. fluviatilis s.l. in iran based on maximum entropy model. | malaria is considered as a major public health problem in southern areas of iran. the goal of this study was to predict best ecological niches of three main malaria vectors of iran: anopheles stephensi, anopheles culicifacies s.l. and anopheles fluviatilis s.l. a databank was created which included all published data about anopheles species of iran from 1961 to 2015. the suitable environmental niches for the three above mentioned anopheles species were predicted using maximum entropy model (maxe ... | 2017 | 28188765 |
| health impact assessment of indira sagar project: a paramount to studies on water development projects. | very limited studies on health impact assessment (hia) of water development projects (wdp) in relation to mosquito-borne diseases have been carried out in india. the current study focuses on using hia as a tool for finding impact of indira sagar project, madhya pradesh on human health in relation to mosquito borne diseases, and emphasizing its incorporation as an integral part of any wdp. | 2017 | 28125993 |
| mapping of malaria vectors at district level in india: changing scenario and identified gaps. | malaria is one of the six major vector-borne diseases in india, the endemicity of which changes with changes in ecological, climatic, and sociodevelopmental conditions. the anopheline vectors are greatly affected by ecological conditions such as deforestation, urbanization, climate and lifestyle. despite the advent of tools such as geographic information system (gis), the updated information on the distribution of anopheline vectors of malaria is not available. in india, the plan for vector cont ... | 2017 | 28051366 |
| bio-ecology of malaria vectors in an endemic area, southeast of iran. | to determine some bio-ecological aspects of malaria vectors in jask county, where is targeted for malaria elimination in the national program. | 2016 | 26851783 |