Publications

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laboratory colonization of toxorhynchites brevipalpis.toxorhynchites brevipalpis, a predator on larvae of aedes aegypti and other mosquitos, was successfully colonized in the laboratory. at 25 degrees c, embryonic development was completed within 50 hours of oviposition, while larval and pupal development together took a further 27-41 days. the adult mosquitos mated in cages as small as 15x15x15 cm, and the embryonated eggs were obtained 6-31 days after the adults emerged.19734149530
adult population estimate of toxorhynchites brevipalpis.an estimate of the numbers of adults of the predacious mosquito toxorhynchites brevipalpis was made in a 1-ha biotope in dar es salaam, tanzania, where the population of its larval prey aedes aegypti was high, by means of the mark-release-recapture method. two months after the end of the rainy season, the number of adults was estimated to be 3 500-about 6 times the number of adult a. aegypti in the biotope.19734150432
[kinetic study of the metabolic effects of a blood meal in aedes aegypti]. 19734208691
synergism of insecticides by herbicides.the herbicides atrazine, simazine, monuron, and 2,4-d (2,4-dichlorophenoxyacetic acid) enhanced the toxicity of selected insecticides to drosophila melanogaster meigen, musca domestica l., and larvae of aedes aegypti l. the insecticides-nine organophosphorus compounds, two chlorinated hydrocarbons, and one carbamate-were used at dosages that resulted in low insect mortalities, while the herbicides by themselves were nontoxic. atrazine was most effective. with increasing amounts of this herbicide ...19734125047
radiation sterilization of aedes aegypti in nitrogen and implications for sterile male technique. 19734583511
blood-feeding behavior or adult aedes aegypti mosquitoes. 19734774107
blood-feeding behavior of adult aedes aegypti mosquitoes. 19734732534
ovarian control of vitellogenin synthesis by the fat body in aedes aegypti. 19734583478
corpus allatum control of ovarian development in aedes aegypti. 19734720505
larval mortality of culex tarsalis and aedes aegypti when reared with different concentrations of tetrahymena pyriformis. 19734198151
investigation of a virus disease of the densonucleosis type in a laboratory culture of aedes aegypti. 19734125849
vitellogenin synthesis by the fat body of the mosquito aedes aegypti: evidence of transcriptional control. 19734787199
occurrence of heat-dissociable ribosomal rna in insects: the presence of three polynucleotide chains in 26 s rna from cultured aedes aegypti cells. 19734197338
sex-linked translocations, semisterility and linkage alterations in the mosquito aedes aegypti. 19734735778
a study on the fecundity of male aedes aegypti. 19734705254
effect of antibiotics and antimalarials on free amino acids of aedes aegypti. 19734697425
[action of various antimitotics on the development of aedes aegypti larvae]. 19734802874
[method of simultaneous mass production of larvae of aedes aegypti (l.) and aedes albopictus (skuse) diptera-culicidae]. 19734773086
scanning electron microscopy of cultured cells of aedes aegypti. 19734690305
structure and function of the basal lamina and of the cell junctions in the midgut epithelium (stomach) of female aedes aegypti l.(insecta, diptera). 19734147872
inheritance of susceptibility to dirofilaria immitis infection in aedes aegypti. 19744152306
growth of venezuelan encephalitis virus and disapperance of coxsackie a, rous sarcoma, herpes simplex and vaccinia viruses following inoculation of aedes aegypti and other mosquitoes. 19744152894
host preference in aedes (stegomyia) mosquitoes in uganda. ii. studies on indoor and outdoor biting and resting behaviour with special reference to aedes aegypti l. 19744152901
the pattern of flight muscle damage in relation to the distribution of developing filarial larvae in aedes aegypti and mansonia uniformis. 19744155607
survey of the relative prevalence of potential yellow fever vectors in north-west nigeria.the yellow fever epidemic in nigeria in 1969-70 emphasized the lack of data concerning the possible importance of aedes aegypti and other stegomyia mosquitos as vectors. an entomological survey was therefore undertaken in september 1973 in 6 areas in the north-west of nigeria to determine the prevalence of stegomyia populations in the villages. an examination of over 6 700 water pots showed that 11-53% contained a. aegypti larvae, and in some areas larvae of a. vittatus were found in up to 18% o ...19744156499
[morphogenesis of sindbis virus in intestinal and salivary gland cells of the mosquito aedes aegypti]. 19744366341
development of the filarial nematode, brugia pahangi, in aedes aegypti mosquitoes: nondependence upon host hormones. 19744814787
the relationship between plasmodium gallinaceum density and the fecundity of aedes aegypti. 19744819576
the development of brugia pahangi in male aedes aegypti of "refractory" genotype. 19744854716
a large-scale field trial of ultra-low-volume fenitrothion applied by a portable mist blower for the control of aedes aegypti.long-term control of aedes aegypti, the vector of dengue haemorrhagic fever in thailand, was obtained by 2 thorough applications of fenitrothion mist applied at a target dosage rate of 0.1 ml per m(3) of room space. perfect control lasted for 6-7 months after treatment and densities were substantially reduced for up to a year after treatment. recovery of the population was still slow up to almost 16 months after treatment. this degree of control was achieved by the immediate mortalities produced ...19744549492
differential uptake of tritiated thymidine and adenine by the mosquito aedes aegypti infected with the filarial nematode brugia pahangi. 19744420187
effects of temperature on development of brugia pahangi in a susceptible strain of aedes aegypti. 19744436753
studies on filariasis. iii. dirofilaria immitis: emergence of infective larvae from the mouthparts of aedes aegypti. 19744448885
[genetics of the suceptibility of aedes aegypti to dirofilaria repens]. 19744470183
homologous interference in aedes aegypti cell cultures infected with sindbis virus. 19744474862
the effect of infection with brugia pahangi and dirofilaria repens on the egg-production of aedes aegypti. 19744480018
mosquito-borne infections in fiji. v. the 1971-73 dengue epidemic.a dengue epidemic due to type 2 virus involving some 3,400 cases began in fiji early in 1971, had a peak during may, june and july, and cases have continued to occur with a low incidence during 1972 and 1973. many of the notified cases showed classical dengue fever symptoms and there were no confirmed cases of haemorrhagic fever. a serological survey indicated that there had been at least 20,000 subclinical infections. it is probable that the virus was introduced to fiji either through the port ...19744529580
vector capability of aedes aegypti mosquitoes for california encephalitis and dengue viruses at various temperatures. 19744132612
aedes aegypti surveillance and control in the south pacific. 19744143238
fine structure of antennal grooved pegs of the mosquito, aedes aegypti. 19744458949
[feeding behavior of aedes aegypti (l.) and aedes albopictus (skuse) females and factors influencing the number of eggs deposited by same]. 19744450555
aedes aegypti larval habitats in surinam. 19744441730
morphometric analysis of the midgut of female aedes aegypti (l.) (insecta, diptera) under various physiological conditions. 19744374306
x and y chromosomes of aedes aegypti (l.) distinguished by giemsa c-banding. 19744141301
the distribution of acetylcholine and unspecific esterases in the midgut of female aedes aegypti l. 19744434741
the production of a ddt-resistant strain of aedes aegypti marked on all three linkage groups. 19744458942
identification of antennal chemoreceptors of the mosquito, aedes aegypti: a correction. 19744435168
effect of weight on mosquito (aedes aegypti l.) feeding. 19744435156
parasitic development of the mermithid nematode reesimermis nielseni in the larval mosquito aedes aegypti. 19744434274
a comparison of the morphogenetic and sterilizing activities of juvenile hormone mimics on aedes aegypti. 19744422187
dietary factors stimulating oogenesis in aedes aegypti. 19744441563
activation of vitellogenin synthesis in the mosquito aedes aegypti by ecdysone. 19744411834
dopa decarboxylase activity in aedes aegypti: a preadult profile and its subsequent correlation with ovarian development. 19744151553
electrical potential differences and ionic transport in the larva of the mosquito aedes aegypti (l.). 19744832994
duplication deficiency heterozygotes in aedes aegypti. 19744526162
infection of aedes aegypti cells with mosquito iridescent virus. 19744825261
a genetical investigation of resistance to "knockdown" and "kill" by ddt in adults of the mosquito aedes aegypti l. 19744407168
effect of dopa-decarboxylase inhibition on aedes aegypti eggs: evidence for sclerotization. 19744815641
structural and functional modifications of the nucleus during oogenesis in the mosquito aedes aegypti. 19744856243
iridescent virus replication: a microscope study of aedes aegypti and antherea eucalypti cells in culture infected with iridescent virus types 2 and 6. 19744597678
studies with brugia pahangi 10. an attempt to demonstrate the sharing of antigenic determinants between the worm and its hosts.infective stage brugia pahangi that were reared in aedes aegypti survived equally well in cats that had previously been immunized against mosquito tissue and in a normal cat. the survival of third, fourth, juvenile, adult and microfilarial stages of b. pahangi that were recovered from cats was similar in jirds that had been immunized against cat antigens and in normal jirds. host antigenic determinants were not detected on the surface of larvae in substantial amounts using fluorescent antibody t ...197550339
epidemiological features of dengue and chikungunya infections in burma.a serological survey for antibody to dengue and chikungunya was carried out in all 14 divisions and states and 2 border towns in burma during 1973-74. dengue hi antibody prevalence rate of less than 10% was observed in arakan and shan states, 10 to 30% in the irrawaddy, pegu, mandalay divisions and kachin, mon and karen states, 31 to 60% in sagaing division, and over 60% in rangoon, magwe and tenasserim divisions. similarly, chikungunya hi antibody prevalence rate of less than 10% was observed i ...1975126493
insecticide susceptibility of some vector fleas and mosquitoes in burma.rat fleas and mosquitoes are insect vectors of public health importance in burma. plague is endemic in central burma and ddt has been the principal insecticide used for its control to date. dengue haemorrhagic fever, recently introduced and transmitted by aedes aegypti, has been spreading to major towns since 1971. the rodents, rattus rattus, r. exulans, bandicota bengalensis, mus musculus, as well as shrews were commonly caught during routine trapping in the country. rattus norvegicus, prevalen ...1975131975
california encephalitis virus development in mosquitoes as revealed by transmission studies, immunoperoxidase staining, and electron microscopy.isolates of the snowshoe hare subtype of california encephalitis (ce) virus from yukon mosquitoes during 1972 and 1973 were transmitted by bites of aedes aegypti mosquitoes after 4 to 5 weeks of extrinsic incubation at 55 degrees f after intrathoracic injection, and the 1973 strain was transmitted after mosquitoes were fed virus and held for 3 to 4 weeks at 75 degrees f. antigen of a 1971 isolate of ce virus (marsh lake 23) was detected in salivary glands of infected mosquitoes by the immunopero ...1975235355
transmission of hog hog cholera virus by mosquitoes.mosquitoes trapped during an epizootic of hog cholera (hc) in maryland in 1969 were prepared into 40 pools which were inoculated in pigs. hog cholera virus was confirmed in pigs inoculated with 8 of 40 pools of mosquitoes. generally, the pigs contracting hc developed chronic infections with persistent viremia that lasted 30 or more days. two pigs seemed healthy when euthatized 62 and 80 days after inoculation, yet viremia of high titer was detected in each. experimental studies were performed wi ...1975237444
pathogen transmission in relation to feeding and digestion by haematophagous arthropods.the blood feeding habit, especially among opportunist feeders such as tabanids and stomoxys is known to result in transmission of diseases for which the vectors are not the obligate or alternate hosts. thus, mechanical transmission of trypanosomes such as t. vivax can occur in cattle herds outside tsetse fly areas where tabanids are actively feeding. in the case of yaws, mechanical transmission of the spirochaetes by eye flies (hippelates pallipes) in the west indies is thought to be most likely ...1975240257
an agent in the aedes aegypti cell line (peleg) which causes fusion of aedes albopictus cells. 1975806166
isolation of chikungunya virus contaminating an aedes albopictus cell line.an aedes albopictus cell line was found contaminated with structures morphologically compatible with an alphavirus. rapid isolation of a cytopathic virus was effected by combining sonication, concentration with aquacide ii-r, rate zonal sedimentation and subsequent plating of fractions on vero cells under agar overlay. the virus caused neithedeath nor disease on inoculation into infant and adult mice. it produced a c.p.e. in vero and bhk 21 cells, and multiplied in singh's aedes aegypti cells. t ...1975806659
adaptation studies with ross river virus: retention of field level virulence.two field strains of ross river virus (rrv) which differed in virulence for laboratory mice were maintained without detectable change in virulence when passaged alternately in aedes aegypti mosquitoes and newborn mice. no biological mechanism or selection pressure was identified to explain this suppression of the usual change to higher virulence observed when rrv is passed serially in infant mice. the maintenance of initial virulence by alternating passages appears to be related to the fact that ...1975808589
multiplication of venezuelan equine encephalitis (mucambo) virus in cultured mosquito cells.venezuelan equine encephalitis (mucambo) virus was able to multiply at 28degree c in cultured mosquito cells (aedes aegypti and aedes albopictus) without inducing any apparent cytopathology. the kinetics of virus multiplication was similar in mosquito and mammalian (vero) cells. twelve to twenty four hours post-infection, a maximum of 10-50 per cent of the cells were engaged in virus production; however, almost immediately this proportion fell abruptly tending to stabilize in the order of 0.01 t ...1975813617
[the mechanism controlling the crossing of the vector's stomach wall by microfilariae (dipetalonema dessetae-aedes aegypti)].in some of the human filariasis, the number of microfiliariae which succeed in crossing the vector's stomach wall is smaller when the number of ingested microfilariae is larger (limitation). in the couple dipetalonema dessetae-aedes aegypti, this phenomenon appears to be due to a specific lysis of the stomach cells invaded by the microfilariae. this reaction is started when the microfilariae are very numberous. there is "information" transmitted to the whole of the vector's stomach.1975813899
in vivo behavior of a sindbis virus mutant isolated from persistently infected aedes aegypti cell cultures.a mutant of the sindbis virus sv-s was found to interfere with the regular course of infection by the wild strain of the virus sv-w in a. aegypti mosquitoes and in suckling mice. in mosquitoes, this result was manifested by a reduced titer of sv-w in the presence of sv-s and by a failure of the mosquitoes to transmit sv-w. in the brains of suckling mice, in the presence of sv-s, the growth of sc inoculated sv-w was suppressed, and as a result, the usually lethal course of infection by this virus ...19751072594
infection of the mosquito aedes aegypti with infectious west nile virus-antibody complexes.aedes aegypti fed through chick skin membranes on west nile virus-homologous antiserum mixtures shown by an anti-globulin neutralization test to be highly infectious complexes (in terms of plaque formation in tissue culture) failed to become infected. control mosquitoes fed on west nile virus--normal rabbit serum mixtures containing similar or smaller amounts of infectious virus were shown to become infected. mosquitoes ingesting suspensions of west nile virus previously incubated with murray va ...19751080913
brugia pahangi: effects upon the flight capability of aedes aegypti. 19751149863
neutralization of sindbis virus by antisera to antigens of vector mosquitoes.sindbis virus harvested from infected cultures of vero cells and from aedes aegypti mosquitoes was used in neutralization tests with sera obtained from guinea pigs immunized with ground a. aegypti and from guinea pigs repetitively bitten by mosquitoes. employing these antisera, more mosquito-propagated virus was neutralized than was virus grown in cultures of vero cells. the neutralizing activity resided in the immune globulin fraction and may reflect the production of antibody to vector antigen ...19751155692
the multiplication of nodamura virus in insect and mammalian cell cultures.nodamura virus multiplied in mosquito cell lines, as determined by infectivivity assays in adult honey bees (apis mellifera) and wax moth larvae (galleria mellonella). titres of more than 10-7 and 10-5 bee ld50 /ml were obtained in culture fluids of aedes albopictus and aedes aegypti cells respectively after 10 days. comparable titres were obtained after several months, during which the cultures were subdivided up to six times. nodamura virus also multiplied in bhk cells and yielded titres of 10 ...19751168239
developmental effects of brugia pahangi (nematoda: filarioidea) to high temperature in susceptible genotypes of aedes aegypti (diptera: culicidae). 19751195293
arbovirus growth in aedes aegypti mosquitoes throughout their viable temperature range.after intrathoracic inoculation of laboratory-bred aedes aegypti mosquitoes with 3 yukon isolates of california encephalitis (ce) virus (showshoe hare subtype), northway (nor) and murray valley encephalitis (mve) viruses, viral replication was observed following incubation at 13, 21, 35 and 39 degrees c, which constituted the full temperature range of viability of a. aegypti. rates of viral replication were reduced at low temperatures and accelerated at high temperatures. virus-specific immunope ...19751202569
effect of the environmental conditions on eggs and water living stages of aedes aegypti (linn.) and aedes albopictus (skuse), vectors of dengue haemorrhagic fever in viet-nam. 19751203600
results of spraying with ultra-low-volume malathion at ground level in panama city.several ultra-low-volume (ulv) sprayings of technical malathion (95 per cent) were carried out in panama city. their purpose was to find out how useful this ulv technique could be in helping to combat mosquitoes, especially aedes aegypti. two residential areas were selected as sites for the trials. one of these was san francisco, a district near the shoreline of the bay of panama with many individual houses and a few tall buildings. the other was el cangrejo, a district further inland containing ...19751212538
observations on the re-establishment of aedes aegypti population in poona city and suburbs, maharashtra state, india. 19751213808
structure-activity relationships of phosphorus amides in aedes aegypti and culex pipiens fatigans (diptera: culicidae). 19751223296
distribution of aedes aegypti (linnaeus) and aedes albopictus (skuse) in small towns and villages of penang island, malaysia--an ovitrap survey.an ovitrap survey was carried out in april and may of 1975 at twenty-one locations scattered throughout penang island excluding the city of georgetown. the results showed the ubiquitous presence of ae. albopictus. ae. aegypti was recorded only in tanjung tokong lama, an area adjacent to the city of georgetown. in the survey, ae. albopictus females were found to prefer the outdoor ovitraps than indoor ones. the effectiveness of ovitrap in aedes survey was discussed.19751226538
melanotic encapsulation of the nematode neoaplectana carpocapsae by aedes aegypti larvae concurrently parasitized by the nematode reesimermis nielseni. 19751159314
bioassay of mosquito iridescent virus of aedes taeniorhynchus in cell cultures of aedes aegypti. 19751159310
the influence of the brain hormone on retention of blood in the mid-gut of the mosquito aedes aegypti (l.). 1975240165
trisomy in aedes aegypti.a trisomic (2n=6+1) pupa of the yellow fever mosquito aedes aegypti has been found. the trisomy involved chromosome 3 which is intermediate in size between 1 and 2. the extra chromosome formed a univalent or a trivalent during meiosis.19751182593
lipase activity and stimulation mechanism of esterases in the midgut of female aedes aegypti. 19751133492
morphometric differences in midgut epithelial cells between strains of female aedes aegypti (l.) (insecta, diptera).midgut epithelial cells of female aedes aegypti deriving from 2 different mosquito strains were compared morphometrically. one of the 2 strains was recently isolated from nature (east africa). the other strain is an old laboratory strain, reared under laboratory conditions for about 30 years. the quantitative morphological comparison demonstrates, that the ultrastructural composition of the midqut epithelial cells corresponds generally in both strains. it can be shown, however, that in the old s ...19751149093
renewable fecundity of male aedes aegypti following replenishment of seminal vesicles and accessory glands. 19751141702
uptake and metabolism of the chemosterilants hempa and thiohempa by larvae, pupae and adults of aedes aegypti (l.) (diptera: culicidae). 19751167184
lipid content of maturing ovaries of aedes aegypti mosquitoes. 19751116351
comparison of lipid composition of aedes aegypti and aedes albopictus cells obtained from logarithmic and stationary phases of growth.the total lipids, total neutral lipids, and total phospholipids from aedes aegypti and aedes albopictus cells cultivated in vitro in a medium containing fetal calf serum were analyzed. the mosquito cells were harvested in the logarithmic and stationary phases of growth. the fatty acid profiles of the lipids showed differences during the aging of the cells but not betweeen species. there was an increase in chain elongation and unsaturation of the fatty acids in the stationary phase when compared ...19751117810
a genetical study of ddt resistance in the mosquito aedes aegypti.crosses have been carried out to determine the relationship between adult ddt resistance and the three linkage groups of the mosquito aedes aegypti. two linkage groups were implicated in the control of ddt resistance. in the bangkok-hr strain resistance derived mainly from linkage group iii, probably with the maor effect from the gene r-ddt2. when resistance was transferred into a susceptible background, by outcrossing bangkok-hr to strain 64 and reselecting, resistance in the resulting bangkok- ...1975235502
the effect of fluctuating temperature and humidity on the adult life table characteristics of five strains of aedes aegypti. 19751123832
permanent loss of male fecundity following sperm depletion in aedes aegypti (l.). 19751123830
haemolytic activity in the blood clot of aedes aegypti.in the present study it was demonstrated that mosquito blood clots contain a haemolytic principle which achieves haemolysis of washed erythrocytes in an isotonic medium. proteinases are thought to play a role in this process. no final proof could be given for the existence of phospholipase activity although some results suggest the presence of this group of enzymes.1975240259
the esterase patterns in the ovaries and the embryonated eggs of aedes aegypti l.the esterases of aedes aegypti were studied in the ovary before and during a gonotrophic cycle and also in fully embryonated eggs by means of disc electrophoresis. during oogenesis no significacant changes can be observed besides a marked increase in the total esterase activity. a different esterase pattern is found in eggs after embryogenesis. the electrophoretic mobility of some esterase bands is highly increased in the ovary compared to other organs. one esterase fraction in the ovary and two ...1975239551
lipase and unspecific esterase activity in the fat body of aedes aegypti l.in the fat body of aedes aegypti a very high unspecific esterase activity and a low lipolytic activity was found. the electrophoretic isozyme patterns of the unspecific esterases show only few changes in the different physiological stages. the activity of the unspecific esterases as well as of the lipase is especially high in young sugar fed and in blood fed mosquitoes which points to special energy requirements in these stages. the role of the unspecific esterases is discussed.19751988
linkage of a gene for ddt-resistance in adults of the mosquito aedes aegypti.the gene rddt2, which gives resistance to ddt in the imago of aedes aegypti l. has been mapped on linkage group iii with respect to six visible markers. the best interpretation of the order of the genes is:- blp - blt - co - fz - wi -rddt2 - min, but the order blp - blt - co - fz -rddt2 - wi - min is also possible.19751203761
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