Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| the replacement of culex nebulosus theo. by culex pipiens fatigans wied. (diptera, culicidae) in towns in nigeria. | 1966 | 5945564 | |
| [insecticide susceptibility of sanitary insects ranged in kyoto city and its vicinity. 4. on the larvae of culex pipiens s.1]. | 1966 | 5951547 | |
| an assessment of culex pipiens quinquefasciatus say as a vector of virus diseases in the witwatersrand region of the transvaal. ii. sindbis virus. | 1966 | 5953933 | |
| an assessment of culex pipiens quinquefasciatus say as a vector of virus diseases in the witwatersrand region of the transvaal. 3. witwatersrand, germiston and h336 viruses. | 1966 | 5953934 | |
| an assessment of culex pipiens quinquefasciatus say as a vector of viruses in the witwatersrand region of the transvaal. i. west nile virus. | 1966 | 5953935 | |
| cytoplasmic incompatibility as a means of eradication of culex pipiens l. | 1966 | 5964219 | |
| the functional anatomy of the copulatory apparatus of male culex pipiens (diptera: culicidae). | 1966 | 5966508 | |
| preliminary studies on autogeny in culex pipiens complex. | 1966 | 6002829 | |
| [on the gonotrophic cycle in mosquitoes of the genus culex. 1. the effect of the amount of the sucked human blood on the development of eggs and fecundity of culex pipiens molestus forskl. and culex pipiens pipiens l]. | 1966 | 6003915 | |
| studies on culex pipiens molestus in israel. 2. skin response in man to extracts from the mosquito. | 1967 | 6026352 | |
| electrophoretic patterns of larval haemolymph-proteins in autogenous and anautogenous forms of culex pipiens l. | 1967 | 6059529 | |
| bromophos and bromophos ethyl as larvicides against culex pipiens fatigans in clear and polluted water. | 1967 | 6077513 | |
| [preliminary studies on levels of sensitivity to phosphoric esters in the italian population of the culex pipiens complex]. | a preliminary survey of the susceptibility level to organophosphate (op) insecticides in six populations of culex pipiens from central italy has been carried out. the correlation between op resistance and highly active esterase electromorphs has also been investigated. the bioassay and electrophoresis results show an association between op resistance and the highly active esterase allele est-3a and confirm what it was found in populations of c. pipiens from southern france. est-3a appears to be ... | 1982 | 6083528 |
| virus isolations from mosquitoes in southern ontario, 1976 and 1977. | following the 1975 epidemic of st. louis encephalitis (sle) in ontario, programs were instituted to monitor virus activity in mosquito populations during 1976 and 1977. mosquitoes were trapped with cdc light traps and co2 cone traps, pooled by species, and tested for virus by intracerebral inoculation of suckling mice. in 1976, 51 175 mosquitoes were tested. sle virus was isolated from two mixed pools of culex pipiens--c. restuans mosquitoes. five isolations of california serogroup viruses were ... | 1980 | 6103747 |
| larval susceptibility of culex pipiens fatigans and anopheles stephensi to metarrhizum anisopliae. | 1981 | 6116669 | |
| studies with equine infectious anemia virus: transmission attempts by mosquitoes and survival of virus on vector mouthparts and hypodermic needles, and in mosquito tissue culture. | biological and mechanical transmission trials with psorophora columbiae (dyar and knab) and aedes sollicitans (walker) and ponies acutely infected with equine infectious anemia virus (eiav) were negative. the eiav antigen was detected by radioimmunoassay in ae sollicitans immediately after the mosquitoes had fed on an acutely ill pony, but not 14 days after feeding. psorophora columbiae mosquitoes had detectable eiav antigen as determined by radioimmunoassay 24 hours after they fed on an acutely ... | 1981 | 6119953 |
| genetic and biochemical studies of the highly active esterases a' and b associated with organophosphate resistance in mosquitoes of the culex pipiens complex. | the highly active esterases a' and b that cannot be dissociated from op resistance in culex pipiens from france and california are shown to have equivalent km values (2.1 x 10(-6) m/min/mosquito) but different turnover rates (vm = 2.13 and 0.57 x 10(-6) m/min/mosquito, respectively) and ph for maximum activity. both enzymes have broad substrate specificities and at least one, esterase a', can hydrolyze op insecticides. in addition, esterases a' and b are coded by two closely linked genes, est-3 ... | 1981 | 6120690 |
| 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 |
| activity of california encephalitis group viruses in entrelacs (province of quebec, canada). | during the summer of 1979, indicator rabbits were placed in three sites in entrelacs (laurentian area, province of quebec) and mosquitoes were collected in order to monitor arbovirus activity in the area. eight seroconversions to california encephalitis (ce) group viruses were detected in rabbits during june, july, and august. twenty-five strains identified as members of the ce group were isolated: 3 were obtained from viremic rabbit sera, 1 from adult aedes communis reared in the laboratory fro ... | 1982 | 6126267 |
| the effects of parabiotic twinning of susceptible and refractory mosquitoes on the development of plasmodium gallinaceum. | two species of mosquitoes were joined parabiotically with glass capillaries so as to share common hemolymph. in experiments designed to determine optimum physical factors was found that capillaries of 2.5 mm in length, 100 microns od and with pointed ends were tolerated best by mosquitoes and permitted optimum hemolymph transfer. maximum survival of mosquitoes was noted when capillaries were inserted in the post mesospiracular membranous area, in the largest mosquito first and allowed to fill wi ... | 1982 | 6129293 |
| [mosquito fauna of (diptera, culicidae) of schwerin district, east germany, and their importance as pests]. | 31 species of mosquitoes have been found in an investigation of the mosquito fauna in the district of schwerin, german democratic republic. 5 of these species have been found responsible for producing pests: aedes cantans, a. annulipes, a. cataphylla, a. punctor and culex pipiens. at the same time an ecological investigation of the breeding places of the mosquitoes was carried out (measurement of acidity and chlorid ions). a large chemical uniformity of the breeding places was found. the relativ ... | 1983 | 6137173 |
| oxygen consumption in mosquito larvae parasitized by romanomermis culicivorax (nematoda). | the effect of parasitism by romanomermis culicivorax on the oxygen consumption of three species of mosquito larvae was studied by manometric methods. the q02 of culex pipiens, both parasitized and unparasitized, decreased as the host larvae developed from the second to fourth instar. in the early stages there was no significant difference in q02 in parasitized and unparasitized hosts but the q02 increased significantly in parasitized fourth instar larvae. the q02 of parasitized and unparasitized ... | 1984 | 6146430 |
| hemolymph ph of the larvae of three species of mosquitoes, and the effect of romanomermis culicivorax parasitism on the blood ph of culex pipiens. | 1984 | 6147379 | |
| increased mosquito feeding on rift valley fever virus-infected lambs. | experiments were conducted to determine whether or not mosquitoes exhibited an increase in feeding on rift valley fever (rvf) virus-infected lambs as compared to uninfected ones. overall, when given a choice between a viremic lamb, or its uninfected twin, 65% (1,264/1,943) of the engorged female culex pipiens obtained blood from the viremic lamb. this excess of feedings on viremic lambs was demonstrated regardless of the age of the lambs, or the time period between inoculation of the lambs and e ... | 1984 | 6150656 |
| [research on viral infections in south pacific mosquitoes under natural conditions]. | from 1975, epidemiological studies on arboviral diseases, conducted in new caledonia, vanuatu, wallis and horne islands, have shown that 11 species of mosquitoes may harbour viruses in natural conditions. virus isolations were attempted from 1,025 pools of culicidae totalizing 32,182 individuals belonging to 5 genera and 21 species. viral infections have been demonstrated in 76 pools (7.4%). the species harbouring viruses were: aedes aegypti, ae. alternans, ae. notoscriptus, ae. vexans, ae. vigi ... | 1984 | 6151879 |
| filarial diseases in ceylon: a geographic and historical analysis. | medical records concerning filarial diseases in ceylon date from the account of davy[1], though there are hints as to the more obvious manifestations in the old chronicles of the country, too. a first survey was conducted in 1912/1913 concentrating on urban areas, followed by a second survey in the 1930s with emphasis on the rural parts. the results displayed a remarkable distribution pattern: wuchereria bancrofti, the so-called "urban type", concentrated in galle and matara towns, whereas brugi ... | 1983 | 6152421 |
| effects of tepa on alkaline phosphatase activity during ovarian development of the tropical house mosquito culex pipiens fatigans wiedemann. | 1981 | 6166552 | |
| [entomology notes. viii - morphogram of the larvae of american culex pipiens]. | 1983 | 6197924 | |
| [breeding sites of culex pipiens pipiens l. and culex pipiens molestus forsk. mosquitoes on the territory of a large city]. | 1982 | 6215563 | |
| [breeding sites of culex pipiens l. mosquitoes in the viniculture regions of armenia]. | 1982 | 6215567 | |
| [experience in eradication and preventive measures against the breeding of blood-sucking culex pipiens l. mosquitoes in the pickling pits of a vegetable depot in samarkand]. | 1982 | 6215568 | |
| [the effect of synthetic pyrethroids on the mosquito, culex pipiens pipiens]. | 1983 | 6220822 | |
| [winter breeding of culex pipiens molestus forsk. mosquitoes in open reservoirs in baku]. | 1983 | 6221180 | |
| [swarming of culex pipiens pipiens l]. | 1984 | 6232447 | |
| [action of phytobacteriomycin and of its component streptothricins on culex pipiens molestus forsk. mosquito larvae and on phytopathogenic bacteria]. | 1980 | 6246411 | |
| variation in virulence for mice and rhesus monkeys among st. louis encephalitis virus strains of different origin. | the virulence characteristics of 67 strains of st. louis encephalitis (sle) virus isolated from various sources in north, middle, and south america were compared in mice and rhesus monkeys. each virus strain was titrated in mice exactly 21 days old and virulence was expressed as the ratio of intracerebral (ic)/intraperitoneal (ip) ld50. virus strains fell into three groups: 1) high virulence (ic/ip ld50 ratio approximately 1.0); 2) intermediate virulence (variable mortality over a wide dose rang ... | 1980 | 6254384 |
| ethanolamine kinase from culex pipiens fatigans. | 1981 | 6263190 | |
| transovarial transmission of st. louis encephalitis virus by culex pipiens complex mosquitoes. | experiments were conducted to determine whether transovarial transmission (tot) of st. louis encephalitis (sle) virus occurs in culex pipiens complex mosquitoes, the principal vectors of sle virus in the central-eastern united states. in 1978, field-collected mosquitoes from memphis, tennessee, and mcleansboro, illinois, were used; during 1979, colonized mosquitoes from chicago, illinois, and memphis, tennessee, were used. mosquitoes were infected by feeding on viremic chicks inoculated with an ... | 1981 | 6266266 |
| vector competence of culex pipiens quinquefasciatus for murray valley encephalitis, kunjin, and ross river viruses from australia. | australian populations of culex pipiens quinquefasciatus say from brisbane, charleville, cairns, kowanyama (queensland), darwin (northern territory), mildura (victoria), and port hedland (western australia) proved to be either poorly susceptible or refractory to oral infection with low passage level murray valley encephalitis, kunjin, and ross river viruses. with respect to past or future epidemics of murray valley encephalitis or kunjin (both known to cause clinical encephalitis in man), and of ... | 1982 | 6285750 |
| winter survival of blood-fed and nonblood-fed culex pipiens l. | comparisons were made between groups of culex pipiens l. with different physiologic histories to test their ability to sucessfully overwinter under field conditions. on 14 december 1978, each group of mosquitoes was marked with a distinctive fluorescent dust and released inside an abandoned ammunition bunker at fort washington, maryland. to insure that dead mosquitoes could be dissected and information obtained on their ovarian development, a sample of females from each group was also released i ... | 1982 | 6289686 |
| variation in infectivity of saint louis encephalitis viral strains for culex pipiens quinquefasciatus (diptera: culicidae). | 1983 | 6315940 | |
| controlled release effect of insecticide microcapsules and their results in common household insect pest control. | since 1978 we have prepared microencapsulated insecticides by complex coacervation and interfacial polymerization for household insect pest control, fenthion being the main core element. a series of tests have been conducted against mosquitoes (culex pipiens quinquefasciatus), cockroaches (periplaneta americana) and bedbugs (cimex lectularius), and the results indicate that microencapsulation can prolong persistent effects by 2-12 times, enhance safety and subdue offensive odour. furthermore, th ... | 1984 | 6336530 |
| prevalence of bancroftian filariasis in the city of puerto limón and the province of limón, costa rica. | examination of blood from randomly selected residents in four subdivisions of puerto limón, costa rica, demonstrated wuchereria bancrofti infection in 1.8% of 2,879 persons. previous studies in four other subdivisions of the city revealed infection in 2.7% of 2,338 persons. in both studies the microfilaremia rate in males was approximately twice that in females. distribution by race was similar in the two surveys, with microfilaremia in 1% of 1,052 white and 4.1% of 1,286 black residents in the ... | 1983 | 6359909 |
| parasitological, serological, and clinical studies of wuchereria bancrofti in limbe, haiti. | a survey for wuchereria bancrofti in limbe, haiti (est. pop. = 10,500) revealed that 17% (231/1,450) had a patent infection. nearly half of those surveyed harbored fewer than 10 microfilariae (mf) per 20 mm3 of finger-prick blood; the median mf density for females and males was 12.4 and 9.5, respectively. parasitemias occurred as early as age 4. antibody titers greater than or equal to 1:20 against adult d. viteae antigen were observed in 38% of microfilaremic individuals and in 29% of amicrofil ... | 1984 | 6391223 |
| reproduction of an inbred strain of culex pipiens prevented by loss of wolbachia pipientis. | 1983 | 6404990 | |
| entomopathogenic spore-formers from soil samples of mosquito habitats in northern nigeria. | spore-forming bacteria, isolated from bottom soil samples of periodical mosquito-breeding places in kaduna, n. nigeria, were tested for mosquito pathogenicity. culex pipiens autogenicus was used for this screening. five strains, all of the bacillus thuringiensis group, were active in 85 isolates from 32 samples. the isolates were from three different serotypes (h-14, h-5a5c, and h-8a8b). the activity, compared with the sip standard, was in the known limits of b. thuringiensis israelensis. | 1984 | 6426190 |
| [breeding of culex pipiens molestus forsk. and culex pipiens pipiens l. mosquitoes in samarkand basements]. | 1980 | 6445481 | |
| [observations on criteria of ovarian diapause in culex pipiens pallens and its hormone control]. | 1984 | 6518631 | |
| the effect of laboratory colonization on the vector-pathogen interactions of egyptian culex pipiens and rift valley fever virus. | field and laboratory findings implicated culex pipiens as a vector of rift valley fever (rvf) virus during the 1977-1978 epizootics/epidemics in egypt. this study evaluated changes in infection and transmission rates, and viral titers in f1 through f16 generation cx. pipiens mosquitoes orally infected with rvf virus. infection and transmission rates of rvf virus by this species changed significantly during the colonization process. however, the ultimate viral titers of either the transmitting or ... | 1983 | 6625070 |
| [diseases transmitted by mosquitoes and urbanization. examples of urban vectors of dengue and filariasis]. | once located in time and place the beginning of urbanization process, the mechanisms of adaptation to urban ecosystem and of dissemination by human conveyances are studied for two domestic mosquitoes: aedes aegypti and culex pipiens fatigans (= quinque-fasciatus). then epidemiological consequences are discussed. ae. aegypti pullulation constitutes a potential risk of urban yellow fever outbreak and the main factor of dengue haemorrhagic fever appearance; the increase of c. p. fatigans population ... | 1983 | 6627544 |
| in situ inhibition of cholinesterase in anopheles pharoensis and culex pipiens by malathion and fenitrothion. | 1983 | 6631110 | |
| histochemical localization of cholinesterases in some developmental stages of anopheles pharoensis and culex pipiens (diptera: culicidae). | 1983 | 6631111 | |
| absence of radioresistance of culex pipiens molestus forsk. (diptera, culicidae) exposed to substerilizing doses of gamma radiation for five and eleven generations. | 1983 | 6631116 | |
| the effect of chronic irradiation on the biology of culex pipiens molestus forsk. (diptera, culicidae) through successive generations. | 1983 | 6631117 | |
| reservoir of st. louis encephalitis virus in ohio bats. | inoculation of the big brown bat (eptesicus fuscus) with a small dose of a st. louis encephalitis (sle) virus strain isolated in ohio indicated that the big brown bat was susceptible to infection. the virus was maintained in the bats through hibernation (70 days), and the bats developed a viremia within 4 days of arousal from hibernation (105 days after inoculation). a field survey of 390 big brown bats and little brown bats (myotis lucifugus) conducted in 5 regions of ohio during 1979 to 1981 r ... | 1983 | 6638648 |
| vertebrate host specificity and experimental vectors of plasmodium (novyella) kempi sp. n. from the eastern wild turkey in iowa. | vertebrate host specificity, experimental laboratory vectors, and a description of plasmodium (novyella) kempi sp. n. from eastern wild turkeys (meleagris gallopavo silvestris vieillot) in iowa are presented. plasmodium kempi is infective for domestic turkeys, bobwhites (colinus virginianus), chukars (alectoris graeca), guinea fowl (numida meleagris), peacocks (pavo cristatus), and canaries (serinus canaria), produces a transient infection in mallards (anas platyrhynchos) and domestic geese (ans ... | 1983 | 6644918 |
| comparative studies on ecotoxicology of synthetic detergents. | to predict the comparative toxicological response of synthetic detergents on aquatic ecosystems, the effects of various concentrations of neutralized alkyl benzene sulfonate were studied. the median tolerance limit at 48 hr, 95% confidence limit, slope function, presumable harmless concentration, and rate of survival of different species of aquatic fauna such as water fleas (daphnia magna), mosquito larvae (culex pipiens), slug worms (tubifex rivulorum), snails (lymnaea vulgaris), tadpoles (rana ... | 1983 | 6662055 |
| occurrence of mosquitoes culex pipiens molestus in prague. | 1983 | 6662414 | |
| incorporation of u-14c-glucose into the lipids & sugars of culex pipiens fatigans. | 1983 | 6671710 | |
| phospholipid biosynthesis in culex pipiens fatigans from [14c]choline & [14c]ethanolamine. | 1983 | 6674120 | |
| genetics of abnormal abdomen in culex pipiens fatigans. | 1983 | 6674148 | |
| experimental transovarial transmission of st. louis encephalitis virus by culex and aedes mosquitoes. | colonized and field-collected female culex tarsalis, infected with st. louis encephalitis, (sle) virus by intrathoracic inoculation or by feeding on a viremic host, transmitted virus to their f1 adult and/or larval progeny when reared at 18(+/- 1) degree c but not when reared at 27(+/- 1) degrees c. the minimal infection rates (mir) for different populations of cx. tarsalis ranged from 1:32 to less than 1:250 (mean = 1:121) for larval progeny and from 1:32 to less than 1:1, 989 (mean = 1:1,571) ... | 1984 | 6696174 |
| replication and dissemination of rift valley fever virus in culex pipiens. | following ingestion of 10(4.2) to 10(7.2) plaque-forming units (pfu) of rift valley fever (rvf) virus, 662 of 850 female culex pipiens (78%) became infected. those mosquitoes that became infected separated into two distinct groups: 1) those with a nondisseminated infection limited to the gut, and 2) those with a disseminated infection. the former group contained a median of 10(3.2) pfu, while those females with a disseminated infection contained a median of 10(5.5) pfu. only those females with a ... | 1984 | 6696176 |
| a mosquito-virulent bacillus sphaericus in adult simulium damnosum from northern nigeria. | from newly emerged adult simulium damnosum from kaduna river, northern nigeria, a mosquito-virulent strain of bacillus sphaericus was isolated. in another four cases non-virulent b. sphaericus were present. the isolate exerted a lc50 of 50 spores/ml for culex pipiens l4-larvae and was less virulent for anopheles stephensi (400 sp/ml) and aedes aegypti (800 sp/ml). | 1984 | 6720123 |
| sporulation of bacillus sphaericus 2297: an electron microscope study of crystal-like inclusion biogenesis and toxicity to mosquito larvae. | sporulation of bacillus sphaericus strain 2297 in a synchronous liquid culture was studied by electron microscopy. the t0 of sporulation occurred 7 h after the beginning of the lag phase. crystal-like inclusions first appeared at t2 and reached their final size between t5 and t6. the release of the spore/inclusion complex occurred at about t15 (22 h after inoculation). toxicity against culex pipiens larvae was related to sporulation and appeared during the early stages of sporulation. the lc50 ( ... | 1984 | 6736921 |
| the delayed effects and the basal follicle numbers developed by females of culex pipiens l. emerged from treatments of larvae with partially-lethal concentrations of altosid and dimilin. | the possible juvenilizing effects of dimilin and altosid against larvae of culex pipiens l. were studied. apart from delayed lethal action, possible effect on the mean number of basal follicles developed per female has been considered. a baseline exposure was found which caused only low mortalities of the early 4th larval instar. results showed a correlation between the overall deaths during development and the sex ratio. higher mortality increases the proportion of females. treatments with 0.00 ... | 1981 | 6785900 |
| differentiation of host-seeking behavior from blood-feeding behavior in overwintering culex pipiens (diptera: culicidae) and observations on gonotrophic dissociation. | 1983 | 6842524 | |
| number of generations, egg production, and developmental time of culex pipiens and culex restauns (diptera: culicidae) in southern ontario. | 1983 | 6876091 | |
| experimental st. louis encephalitis virus infection of sloths and cormorants. | experimental infection of 11 bradypus variegatus and choloepus hoffmanni sloths with st. louis encephalitis (sle) virus produced detectable viremias of seven to 27 (median 13) days duration and maximum titers of 2.7 to 6.5 (median 5.1) log10 median suckling mouse intracranial lethal doses (smicld50) per ml. experimental sle viremia onset was delayed and maximum titer depressed in two sloths concurrently infected with naturally acquired viruses. sle viremias in four experimentally inoculated corm ... | 1983 | 6881434 |
| residual toxicity of deltamethrin and permethrin on various surfaces for mosquito species culex pipiens molestul forskal. | the culicine mosquito species culex pipiens molestus forskal were exposed by tarsal contact to various surfaces sprayed with the photostable synthetic pyrethroid preparations deltamethrin (nrdc 161) and permethrin (nrdc 143) used in the form of emulsifiable concentrates (ec) and wettable powders (wp) at doses 0.001, 0.005, 0.02, 0.1 and 0.5 g/m2. the time to appearance of the knock down effect and the residual toxicity were tested for each preparation and type of surface studied. the onset of de ... | 1983 | 6886417 |
| an investigation of possible romanomermis culicivorax proteins in the hemolymph of culex pipiens. | 1980 | 7003025 | |
| age determination of man-biting population of culex pipiens fatigans with particular reference to transmission of wuchereria bancrofti in pondicherry. | 1981 | 7021409 | |
| imported filariasis in pakistan. | night blood surveys for filariasis were carried out in two camps of repatriates from bangladesh. the sample consisted of 1,101 biharis above one year of age of whom 9.0% were found infected with wuchereria bancrofti. the infection rate was significantly higher in males (10.2%) than in females (6.7%). of the three mosquito species (anopheles stephensi, culex pipiens fatigans and c. tritaeniorhynchus) collected in and around the camps, 4.1 and 2.5% of c. p. fatigans were found positive for w. banc ... | 1981 | 7036440 |
| the distribution and frequency of culex pipiens quinquefasciatus say 1823 (diptera, culicidae) breeding places on the kenya coast in relation to human sociological factors. | in rural settlements of the kenya coast c. p. quinquefasciatus develops in three major types of breeding-places. these are pit latrines, cesspools and small cement cisterns which man builds to improve his sanitary facilities. all three types are present in moslem villages. at present only latrines have been recorded in non-moslem villages. building of such facilities is an established practice in moslem villages while it is recent in non-moslem ones. the proportion of houses with potential breed ... | 1982 | 7086925 |
| residual toxicity of wall-sprayed organophosphates, carbamates and pyrethroids to mosquito culex pipiens molestus forskal. | common house mosquito culex pipiens molestus forskal was used to test biologically the residual toxicity of 15 organophosphorus, 5 carbamate and 5 pyrethroid insecticide preparations sprayed on whitewashed or limewashed wall surfaces. the doses of 0.1 g and 1.0 g of active ingredient per 1 m2 of wall surface were used in this experiment. at the dose of 1 g/m2, organophosphates chlorpyriphos, diazinon, fenitrothion, malathion, pirimiphos-methyl and propetamphos, cambamates bendiocarb, dioxacarb, ... | 1980 | 7190586 |
| synthesis of a series of new n1-[4-(4-nitrophenylthio)phenyl]-n3-(h/alkyl/acyl/aryl) thioureas and their antifungal, insecticidal and larvicidal activities. | a series of new mono and disubstituted thioureas, derived from 4-(4-nitrophenylthio) aniline, have been prepared and screened for antifungal activity against alternaria alternata and curvularia lunata. their insecticidal and larvicidal activities have also been evaluated against adult male and female cockroaches (periplanata americana) and mosquito larvae (culex pipiens fatigans wied) of iiird and early ivth instar stage, respectively. the tabulated results reveal that most of the thiourea deriv ... | 1981 | 7196731 |
| [the transmission of entomophaga destruens mycosis in culex pipiens]. | 1982 | 7200749 | |
| sanitation and culex pipiens mosquitoes: a brief review. | 1981 | 7206017 | |
| [attractant properties of peptides for oviparous female aedes aegypti and culex pipiens molestus mosquitoes]. | 1980 | 7207386 | |
| oropouche virus. ii. epidemiological observations during an epidemic in santarém, pará, brazil in 1975. | an epidemic of oropouche fever occurred in santarém, pará, brazil in 1975. in the first survey for oropouche antibodies involving a random sample of an entire city, infection rates varied from 0-44%, depending on the specific area within the city. women had higher infection rates than men, but this difference was statistically significant only for persons older than 10 years of age. an analysis of school data showed that pupils in the evening classes had a greater increase in absenteeism during ... | 1981 | 7212162 |
| insecticide resistance in culex pipiens fatigans and its relevance to vector control. | 1980 | 7228172 | |
| joint action of six herbicides with malathion against mosquito larvae of culex pipiens l. | 1981 | 7268792 | |
| seasonal changes in survival rates of immatures of culex pipiens fatigans in different habitats in pondicherry. | 1981 | 7287089 | |
| role of simulated migration of mosquitoes in development and reversal of malathion resistance in culex pipiens fatigans. | 1981 | 7287090 | |
| est-2 and est-3 polymorphisms in culex pipiens l. from southern france in relation to organophosphate resistance. | est-2 and est-3 linkage disequilibrium was investigated in 43 natural populations. an association between est-2(0.64) and est-3a alleles (or its reverse, est-3null and alleles other than est-2(0.64) was not observed in 19 (1.2%) of the 1599 mosquitoes analyzed, whereas it should have been found in nearly 400 (25%) individuals if the two loci were in equilibrium. this observation is discussed in relation to organophosphate resistance and genetic distance of the two genes. | 1981 | 7295287 |
| [use of k-othrine (decamethrin nrdc 161) in the control of aedes fluviatilis and culex pipiens fatigans: laboratory and field tests]. | 1981 | 7330317 | |
| single pair mating in the tropical house mosquito, culex pipiens fatigans wiedemann in laboratory to assess release-wild male ratio in a field population. | 1981 | 7338369 | |
| isozymes of culex p. fatigans. iii. genetics of leucine-amino-peptidase. | zymograms of leucine-amino-peptidase (lap) of the mosquito culex pipiens fatigans wiedemann (c. p. quinquefasciatus) showed 20 isozyme bands in the fourth instar larvae, 13 in the pupae and 3 in the older adults. homozygous strains of lap-1f (fast) and lap-1s (slow) were isolated and linkage studies carried out. lap-1f and lap-1s allozymes act as codominant alleles, are sex linked and are located in linkage group i. the gene sequence is e-m-mar-lap-1 (eye-gap, maroon-eye, leucine-amino-peptidase ... | 1981 | 7340905 |
| cytoplasmic incompatibility in natural populations of a mosquito, culex pipiens l. | when two strains of culex pipiens (s.l.) of different geographical origin are cross-mated, the cross is frequently sterile in one or both directions. such incompatibility is said to be cytoplasmic because the crossability of a strain is determined by its maternal lineage. the incompatibility is caused in some way by infection with a rickettsia-like bacterial symbiote, as removal of the symbiote abolishes the incompatibility. in compatibility has not been observed in crosses of american strains o ... | 1980 | 7350526 |
| [role of small and minuscule pools and puddles of water in maintenance of urban culex mosquitoes]. | the limited efficiency of contact insecticides on adult mosquito has led to further studies on the ecology of culex pipiens autogenicus in the larval stage. the formation of larval clusters and methods of control are analyzed, emphasizing especially the importance of good housekeeping. | 1980 | 7375763 |
| essential fatty acids for the mosquito culex pipiens. | newly-hatched larvae of culex pipiens grow well to adults in a chemically defined dietary medium containing cholesterol as the only lipid, but the adults cannot fly. arachidonic acid (0.2 mg/100 ml medium) was previously shown to induce emergency from pupae of strong, flying adults, whereas linoleic and linolenic acids, which satisfy the essential fatty acid requirement of other insects, were inadequate. the effect of replacing arachidonic acid by other fatty acids is examined here. saturated or ... | 1980 | 7381586 |
| transmission of st. louis encephalitis virus from argentina by mosquitoes of the culex pipiens (diptera: culicidae) complex. | 1980 | 7401124 | |
| localization of a mosquito-larval toxin of bacillus sphaericus 1593. | cell-free wall, membrane, and cytoplasmic fractions were prepared from bacillus sphaericus 1593, which exhibited toxic activity against larvae of the mosquito culex pipiens var. quinquefasciatus. breakage of 12- to 14-h cells by sonication or french pressure cell yielded toxic material which could be assayed in a standard mosquito larva bioassay. when sporulating cells of strain 1593 were fractionated, the majority of the toxic activity was localized in the cell wall rather than in the plasma me ... | 1980 | 7406488 |
| relative importance of different types of breeding habitats in contributing to the population of culex pipiens fatigans in pondicherry. | 1980 | 7409867 | |
| the use of permethrin (nrdc 143) in pre-seasonal treatment of mosquito breeding sites. | under laboratory conditions the ovicidal effect of synthetic pyrethroid permethrin on eggs of the culex pipiens molestus forskal mosquito was not demonstrated. under field conditions the permethrin doses 0.02--0.75 g/m2 sprayed on the bottom of dried up breeding sites in the inundated forest in the autumn prevented or substantially reduced the occurrence of aedes cantans (meigen) larvae in the spring months. organophosphates fenitrothion and pirimiphos-methyl used in doses 0.04 and 0.16 or 0.15 ... | 1980 | 7419128 |
| effect of rearing temperature on transovarial transmission of st. louis encephalitis virus in mosquitoes. | female aedes albopictus and aedes epactius infected by inoculation with st. louis encephalitis (sle) virus transmitted virus transovarially to their f1 progeny. with ae. epactius, minimal infection rates (mir) in f1 larvae were similar for progeny reared at 18 (+/- 1) degree c or 27 (+/- 1) degree c, whereas, mir's were significantly higher in f1 adults reared at 18 degrees c, than they were in f1 adults reared at 27 degrees c. use of different strains of sle virus appeared to influence transova ... | 1980 | 7435796 |
| changes in body tissues and hemolymph composition of culex pipiens in response to infection by romanomermis culicivorax. | 1980 | 7441000 | |
| experimental transmission and field isolation studies implicating culex pipiens as a vector of rift valley fever virus in egypt. | attempts were made to isolate virus from wild caught mosquitoes during the 1977 and 1978 rift valley fever (rvf) epizootics in egypt. over 95% of the 55,126 mosquitoes collected from epizootic areas in the nile delta and valley were culex pipiens. two strains of rvf virus were isolated from unengorged female c. pipiens taken in 1978. laboratory-reared c. pipiens originating from a population sample from the nile delta epizootic area transmitted rvf virus. the infection rate of mosquitoes that fe ... | 1980 | 7446827 |
| geographic variation among st. louis encephalitis virus strains in the viremic responses of avian hosts. | we studied the capacity of 44 strains of st. louis encephalitis (sle) virus to induce viremia in an epidemiologically important wild avian host, the house sparrow (passer domesticus). selected virus strains were also inoculated at varying doses into 3-week-old chicks. viremic responses were analyzed in terms of the proportion of inoculated nestling and adult birds which became viremic, the mean duration and the mean peak titer of viremia. infectivity of avian sera was determined by plaque assay ... | 1980 | 7446828 |
| a survey of the mosquito and culicoides faunas at two localities in the karoo region of south africa with some observations of bionomics. | the mosquito and culicoides faunas were surveyed at bethulie and luckhoff in the arid karoo region, south orange free state, to determine which species occurred, their relative prevalence and the effects of rainfall. the feeding preferences of these insects were also investigated by means of baited catches. twenty-three mosquito species and 16 culicoides species were collected. the commonest mosquito species, with their feeding preferences, if known, were as follows: culex (culex) univittatus th ... | 1980 | 7454229 |