Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| activity of novel juvenoids on arthropods of veterinary importance. | different juvenile hormone mimics were compared regarding their efficacy against larval and pupal stages of the diptera aedes aegypti, musca domestica, and lucilia cuprina as well as the cat flea ctenocephalides felis. structure-activity relationship of a series of new diphenylethers was analyzed and compared to juvenoids like methoprene, hydroprene, and fenoxycarb. selected compounds were taken for a competition binding assay and their effect on jh-degradation by esterases was examined. the res ... | 1996 | 8756312 |
| on-host viability and fecundity of ctenocephalides felis (siphonaptera: pulicidae), using a novel chambered flea technique. | the on-host viability and fecundity of cat fleas, ctenocephalides felis (bouché), confined within a novel chambering system are described. using this system, all fleas and flea eggs are recovered from chambers after fleas have fed on cats. thus, accurate calculations of both adult flea survival and female flea fecundity can be made. the technique provides a microenvironment in which adult fleas exhibit > 90% survival over 14 d. female fleas lay an average of 9.5 eggs per day on the 2nd d of feed ... | 1996 | 8742530 |
| flea ectoparasites of commensal rodents in shebin el kom, menoufia governorate, egypt. | rodents population are widely distributed in some egyptian governorates, particularly those in the nile delta. generally speaking, rodents particularly those living in close association with man, play a major role in human health, welfare and economy. besides, their arthropod ectoparasites are important vectors of pathogenic agents as well as they themselves are causative agents of many allergic disorders. no doubt, the increase in rodent population is followed by an increase in many zoonotic di ... | 1996 | 8721227 |
| impact of an orally administered insect growth regulator (lufenuron) on flea infestations of dogs in a controlled simulated home environment. | to evaluate the ability of lufenuron to control cat flea (ctenocephalides felis felis) populations on dogs under conditions simulating a naturally infested home environment. | 1996 | 8712514 |
| toxicity and histopathology of the growth regulator pyriproxyfen to adults and eggs of the cat flea (siphonaptera:pulicidae). | adult cat fleas, ctenocephalides felis (bouché), exposed continuously to pyriproxyfen died within 8-10 d. microscopic examination of 7-d-old adults indicated death was caused by histopathological damage to fat body, malpighian tubules, midgut epithelia, salivary gland cells, and other internal tissues. fleas were killed by pyriproxyfen regardless of whether they were held as unfed adults on treated filter paper or as feeding adults on treated dog hair. in addition to these toxic effects on adult ... | 1996 | 8699465 |
| egg production and emergence of adult cat fleas (siphonaptera: pulicidae) exposed to different photoperiods. | laboratory cats were infested with a known number of cat fleas, ctenocephalides felis (bouché), to determine the effects of photoperiod on flea egg production. photoperiods of 8:16, 12:12, and 16:8 (l:d) h were chosen to represent winter, spring/fall, and summer, respectively. there were no significant differences in daily or total flea egg production among the 3 photoperiods. to determine the effects of photoperiod on development of immature stages and subsequent adult emergence from cocoons, e ... | 1996 | 8699462 |
| ctenocephalides felis flea infestation in horses. | the horses were in two stables: in the first stable they were kept together with sheep and in the second stable they were kept together with goats. all horses in both stables were diagnosed as being infested with the cat flea ctenocephalides felis felis. foals were severely infested, whereas adult horses were only moderately infested. | 1996 | 8686179 |
| acquisition of the cat scratch disease agent bartonella henselae by cat fleas (siphonaptera:pulicidae). | we assayed the ability of cat fleas to become infected with bartonella henselae, using an artificial feeding device. fleas fed a concentration of 1 x 10(5) cfu/ml in blood were examined using immunofluorescent antibody assay and polymerase chain reaction. bacteria were present in the gut at 3 h, and persisted up to 9 d after infection. qualitatively, the density of b. henselae was greater in the flea gut at 9 d, indicating that replication was occurring in the gut. b. henselae also was detected ... | 1996 | 8667399 |
| presence of calreticulin in vector fleas (siphonaptera). | calreticulin has been defined in the cat flea, ctenophalides felis (bouché), and oriental rat flea, xenopsylla cheopis (rothschild). calreticulin, a major endoplasmic reticulum protein, was previously identified as a component of ixodid tick saliva. using a riboprobe generated from tick calreticulin complementary dna (cdna), we distinguished 2 transcripts for calreticulin in cat fleas by northern blot analysis. increased expression of calreticulin was not evident in fed versus unfed adult fleas. ... | 1996 | 8667398 |
| reproductive strategies of the cat flea (siphonaptera:pulicidae): parthenogenesis and autogeny? | the objective of this study was to determine if there is evidence of parthenogenesis or autogenous reproduction in the cat flea, ctenocephalides felis (bouché). to examine parthenogenesis, 400 newly eclosed virgin female fleas were collected from a laboratory colony and 100 were placed into each of 4 feeding cages and fed bovine blood through a parafilm membrane. three of the feeding cages were monitored for egg production for 7 d and each group of 100 virgin female fleas produced an average 1,1 ... | 1996 | 8667386 |
| evaluation of flea control programmes for cats using fenthion and lufenuron. | four groups of six cats were kept in carpeted pens similarly infected with ctenocephalides felis. one group was left untreated, but the other groups were treated every 28th day with either an insecticide (fenthion at 30 mg); or an inhibitor of insect development (lufenuron at 133 or 266 mg) or with both. a sudden upsurge in the numbers of fleas occurred on the control cats after 50 days. at this time, the three control strategies had reduced the counts by 91.3, 72.5 and 98.6 per cent, respective ... | 1996 | 8650891 |
| effect of combing time on cat flea (ctenocephalides felis) recovery from dogs. | combing the haircoat to count fleas has been used to determine the efficacy of insecticides against fleas on dogs, but no standardization of method has been reported. in this study, the effect of combing time on flea recovery from dogs was examined. six beagle dogs were infested with 100 unfed, adult ctenocephalides felis (bouché) on each of three consecutive days. a crossover design, balanced for carryover effects, was used to evaluate flea removal rates from each dog by comb-counting for three ... | 1995 | 8644450 |
| emerging bacterial zoonotic and vector-borne diseases. ecological and epidemiological factors. | among the etiologic agents of emerging infectious diseases are several bacterial organisms that naturally reside in animal and arthropod hosts. the most compelling emerging bacterial zoonotic and vector-borne diseases in the united states are lyme disease; a southern erythema migrans-like illness; human monocytic ehrlichiosis; human granulocytic ehrlichiosis; a novel cat flea-associated typhus group rickettsiosis; bartonelloses of immunocompetent and immunocompromised persons, particularly with ... | 1996 | 8627968 |
| fleas, lice and mites on scrub hares (lepus saxatilis) in northern and eastern transvaal and in kwazulu-natal, south africa. | fleas, lice and mites were collected from 24 and 120 scrub hares at pafuri and skukuza, northern and eastern transvaal, respectively, in the kruger national park, and from 34 scrub hares in the hluhluwe region, north-eastern kwazulu-natal. ctenocephalides felis damarensis, the only flea recovered, reached peak burdens on the hares at each locality during late winter or spring. juvenile hares harboured significantly fewer fleas than did adult animals. the lice haemodipsus lyriocephalus and haemod ... | 1995 | 8600437 |
| airborne insecticide residues after broadcast application for cat flea (siphonaptera: pulicidae) control. | airborne residues of chlorpyrifos, propetamphos, and permethrin were measured up to 50 h after broadcast treatment for cat flea, ctenocephalides felis (bouché), control in residences. type of insecticide, time after treatment, ventilation regime, and height above floor significantly affected airborne residues. before spraying chlorpyrifos, residues were low or undetected. in nonventilated residences, chlorpyrifos residues peaked 0-6 h after treatment at 38 ng/liter, then slowly declined through ... | 1995 | 8537544 |
| the cat, the flea, and pesticides. | recent advances in our knowledge of cat flea biology and the discovery of new nontoxic control methods have greatly simplified and improved flea control. instead of relying on adulticides for the bulk of flea control, the veterinarian now focuses on the immature stages, particularly the larvae and the eggs. by doing this, environmentally "friendly" flea control methods are employed that are much safer for the veterinarian, the pet owner, and the cat. | 1995 | 8525567 |
| disinfestation of experimentally infested cat fleas, ctenocephalides felis, on cats and dogs by oral lufenuron. | in vivo efficacy of orally administered lufenuron, an insect growth regulator, in disinfesting cat fleas was evaluated, using flea-free cats and dogs which were purchased and infested every 10 days with cat fleas from a colony kept in our laboratory. lufenuron was orally administered as a single dose of 15, 30, or 60 mg/kg to cats, and 5, 10 or 20 mg/kg to dogs. in cats, adult flea emergence was intensively prevented for 30 days by dosing of 15 mg/kg of lufenuron and 40 days by 30 or 60 mg/kg. t ... | 1995 | 8519893 |
| efficacy of diflubenzuron in simulated household and yard conditions against the cat flea ctenocephalides felis (bouché) (siphonoptera: pulicidae). | diflubenzuron-treated carpet inhibited egg-to-adult development of the cat flea for up to 12 mo even with weekly vacuuming of the carpet. the efficacy of diflubenzuron was similar in treated soils over a 6-mo test period except in the case of treated soil that remained outside. reduced efficacy is attributed to degradation of diflubenzuron by microorganisms and water. | 1993 | 8510122 |
| mode of action of pyriproxyfen and methoprene on eggs of ctenocephalides felis (siphonaptera: pulicidae). | adult cat fleas were exposed to residues of pyriproxyfen and methoprene in glass vials, then fed on a cat 24 h later to investigate the mode of action of juvenoid growth regulators on embryonic development in flea eggs. eggs laid by pyriproxyfen-treated fleas within 70 h after exposure to this juvenoid were often devoid of yolk and frequently collapsed after oviposition. minimal amounts of yolk were deposited in eggs laid after 70 h, and no blastoderm was formed. these results are significant be ... | 1993 | 8459420 |
| a suburban focus of endemic typhus in los angeles county: association with seropositive domestic cats and opossums. | thirty-three cases of locally acquired murine typhus were reported in los angeles county residents from may 1984 through february 1988. only eight cases were reported over the previous 20-year period. thirty (91%) cases resided within a suburban area encompassing approximately 50 km2 in northcentral los angeles or had contact with an animal from this area. serologic testing (complement fixation and indirect fluorescent antibody) of selected animals in close association with human cases revealed ... | 1993 | 8447530 |
| characterization of allergens of the cat flea, ctenocephalides felis: detection and frequency of ige antibodies in canine sera. | flea allergens, fractionated by polyacrylamide gel electrophoresis and transferred to nitrocellulose, were identified using 20 flea-allergic dog sera in an enhanced chemiluminescent assay for canine ige antibodies. at least 15 different flea components in the molecular weight range of 14-150 k bound ige and every serum demonstrated a different pattern of binding. three of the components with apparent molecular weights of 25, 40 and 58 k were each bound by at least 40% of the sera. no reactivity ... | 1993 | 8446466 |
| reproductive success of cat fleas, ctenocephalides felis, on calves as unusual hosts. | cat fleas, ctenocephalides felis, were released onto calves as unusual hosts, and sampled at intervals for histological examination. egg output from fleas on age-matched male and female calves was monitored. using indicators of reproductive maturation and regression together with egg output data, the reproductive success and fertility of cat fleas on male and female calves were estimated. comparisons were made with fleas taken from cats. the mean egg output of fleas on the bull calf was highly s ... | 1993 | 8435496 |
| cloning and sequence analysis of the alpha subunit of the cat flea sodium pump. | we have cloned a cdna that encodes the sodium pump alpha-subunit of the cat flea ctenocephalides felis. the deduced amino acid sequence of 1037 residues is 90% homologous with the drosophila alpha-subunit sequence and shows 75% similarity to the sheep kidney alpha-subunit. one characteristic unique to the insect polypeptides is an extended sequence at the n-terminus. northern blot analysis of c. felis rna detects two alpha-subunit transcripts with lengths of 3.8 and 4.4 kb. sodium pump alpha-sub ... | 1993 | 8397036 |
| isolation and in vitro translation of messenger rna encoding allergens of the cat flea, ctenocephalides felis. | polyadenylated [poly(a)+] mrna was isolated from the cat flea, ctenocephalides felis by oligothymidylic acid-cellulose spin column chromatography and translated in vitro using a cell-free rabbit reticulocyte system. the relative incorporation of 35s-methionine into trichloroacetic acid-precipitable translation products obtained using poly (a+) mrna was 48.5-fold over control translations performed without added mrna. sds-page analysis of the translation products in combination with autoradiograp ... | 1993 | 8342258 |
| allergenicity of the cat flea (ctenocephalides felis felis) | adult fleas, spent and unspent culture media were extracted and the radio-allergosorbent test (rast) performed with sera of 48 cat flea skin test-positive individuals from the tampa bay area of florida. sixteen sera (33.6%) had a positive rast to the cat flea extract prepared in our laboratory [1.7-11.4% of the total counts (tc) added]. six of the 16 sera (12.5%) also contained specific ige to allergens in the spent medium (0.8-3.3% tc). the allergen composition and strength were studied by rast ... | 1993 | 8334536 |
| allergenicity of the cat flea. | 1993 | 8334533 | |
| fleas and lice on scrub hares (lepus saxatilis) in south africa. | a total of 380 scrub hares (lepus saxatilis) from 5 localities, ranging from the north-eastern transvaal to the eastern and the south-western cape province of south africa, were examined for fleas and lice. ctenocephalides felis damarensis was almost exclusively responsible for the flea infestations on hares at 4 of the 5 sites. at 4 localities the prevalence and abundance of this flea reached peaks between august and october and declined thereafter to their lowest levels between february and ap ... | 1993 | 8332329 |
| studies on the ectoparasites (fleas and lice) on rodents in riyadh and its surroundings, saudi arabia. | a survey was conducted on rodents from the riyadh city and surroundings. two species of fleas, xenopsylla cheopis and ctenocephalides felis felis together with polyplax spinulosa were collected. the highest infestation rate by both fleas occurred on rattus rattus followed by rattus norvegicus and mus musculus. females of r. rattus and r. norvegicus were more infested by fleas than males. on the other hand, meriones spp., gerbillus spp., jaculus jaculus and acomys dimidiatus were infested with x. ... | 1993 | 8308348 |
| [domestic cats as a source of human flea infestations in towns]. | during the summer and autumn periods of 1990-1992 a periodic massive incidence, infestation as well as parasitization of humans with flea ctenocephalides felis were recorded in the basements of flat blocks in the central area of kosice. the urban population of domestic cats served as a source of the infestation. the dark field examination of fleas for the presence of borrelias revealed negative results. | 1993 | 8306402 |
| an attempt to protect cats against infestation with ctenocephalides felis felis using gut membrane antigens as a vaccine. | cats (n = 5) were vaccinated with membrane antigens extracted from the gut of unfed fleas (ctenocephalides felis felis) together with quil a and ribi as adjuvants. five unvaccinated cats were retained as controls. all the cats were infested on 6 separate occasions with fleas (46-250 per challenge). protection was assessed from the number of fleas retrieved and the fecundity of the female fleas, measured as the number of developed oocytes contained in the reproductive tract. cats injected with gu ... | 1993 | 8300299 |
| severe flea infestation in dairy calves. | an investigation was conducted of a severe flea infestation in holstein dairy calves. inspection of the dairy revealed hundreds of cat fleas, ctenocephalides felis, on 23 calves, and thousands of fleas in the barn where the calves were housed. during the investigation, > 92,000 fleas were collected from the barn. the barn also was inhabited by 30 to 35 flea-infested domesticated and feral cats. several calves appeared emaciated, and analysis of blood samples from 10 calves revealed that 8 were a ... | 1993 | 8276708 |
| development of a trap for collecting newly emerged ctenocephalides felis (siphonaptera: pulicidae) in homes. | the visible light spectra most attractive to cat fleas, ctenocephalides felis (bouché), were determined. a green-yellow filter with a transmittance spectrum centered at 515-nm and a 82.5-nm half-height width attracted significantly more fleas than any other filter or white light. this information and observations on this flea's behavior were used to design a trap with a green-yellow filter and a light source with a 10-min:5-s (on and off) cycle. this trap collected > 86% of the live fleas releas ... | 1993 | 8254638 |
| involvement of dogs in plague epidemiology in tanzania. serological observations in domestic animals in lushoto district. | venous blood was collected aseptically from clinically healthy domestic dogs, goats, sheep, cats and fowl in various plague-infected villages of lushoto district, tanzania, at the time when the disease was actively prevalent in the area. flea ectoparasites were collected from the animals, processed, identified and counted. serum samples were tested for specific plague antibodies, using the passive haemagglutination technique and checked by passive haemagglutination inhibition tests. altogether 3 ... | 1993 | 8248751 |
| efficacy of permethrin in controlling the australian paralysis tick ixodes holocyclus and the cat flea ctenocephalides felis on dogs. | 1994 | 8198516 | |
| cat flea (siphonaptera: pulicidae) cocoon formation and development of naked flea pupae. | the rate of cat flea, ctenocephalides felis (bouché), pupal development and the stimuli responsible for successful cocoon formation were investigated by rearing flea pupae without an enclosing cocoon. female larvae pupated an average 12.1 h earlier than males, and female pupae developed to the adult stage an average 1.6 d earlier than males. when larvae were not allowed to orient against a perpendicular structure, only 2.2% of these larvae were able to spin an enclosing cocoon. although these na ... | 1994 | 8189417 |
| efficacy dosage titration of lufenuron against developmental stages of fleas (ctenocephalides felis felis) in cats. | thirty-two mixed-breed male and female cats were blocked by sex, arranged by body weight from greatest to least, and allocated to 4 groups of 8 (4 male, 4 female) cats, using random numbers. cats in each of 3 groups were treated orally with a 7% suspension formulation of lufenuron at dosage of 15, 30, or 45 mg/kg of body weight. cats in the fourth group were treated orally with an excipient suspension without lufenuron. cats were infested with newly emerged, unfed cat fleas (ctenocephalides feli ... | 1994 | 8141503 |
| patterns of erythrocyte digestion by bloodsucking insects: constraints on vector competence. | two general patterns of erythrocyte digestion were observed in representative species from four insect orders. ingested erythrocytes were hemolyzed rapidly, and blood meals remained liquefied within body lice, pediculus humanus l. and the fleas ctenocephalides felis (bouché) and xenopyslla cheopis (rothschild). peritrophic membrane was absent. in contrast, there was a lag time of 6-18 h before substantial degradation of erythrocytes within the blood meals of bed bugs, cimex lectularius l.; the s ... | 1993 | 8094460 |
| comparison of thumb-counting and comb-counting methods to determine ctenocephalides felis infestation levels on dogs. | comb-counting and thumb-counting were compared in a cross-over study to determine which was more accurate for quantifying flea infestation levels on dogs. twenty beagle dogs were used in the study and infested with either 50 or 100 adult fleas (ctenocephalides felis). two groups of five dogs each were infested with either 50 or 100 fleas per dog, and then comb-counted with a fine-toothed flea comb for 8 min periods. an additional two groups of five dogs each were also given 50 or 100 fleas, and ... | 1994 | 8091613 |
| molecular identification of rickettsia-like microorganisms associated with colonized cat fleas (ctenocephalides felis). | cat fleas (ctenocephalides felis) from eight commercial flea colonies from various regions of the usa were examined by selective pcr amplification, and subsequent restriction digest analysis and southern hybridization of pcr products, for the presence of a rickettsia-like organism (elb agent). these flea colonies were either started with fleas from one supplier (el labs), in which elb agent was first identified, or were started with fleas from stray cats and dogs and later came into contact with ... | 1994 | 8069413 |
| vaccination against the cat flea ctenocephalides felis felis. | non-chemical control of haematophagous parasites is a desirable goal. we report here on the use of concealed antigens from the major digestive organ of the cat-flea as vaccine components. rabbits were immunized with various antigens from cat flea midguts, and immunoglobulin from these rabbits was fed to cat fleas in an artificial feeding system. antibody produced against soluble antigens from the midguts of fed fleas was able to kill fleas in this system. dogs were then immunized with various an ... | 1994 | 8058357 |
| interhost movement of adult cat fleas (siphonaptera: pulicidae). | adult cat fleas, ctenocephalides felis (bouché), marked with orange-red or green fluorescent dye were released on one cat to study movement to another cat over a 7-d period. when the cats were separated, 3-8% of the marked fleas moved to the other cat. when the cats were allowed to remain together, 2-15% of the fleas moved. the percentage of fleas unaccounted for ranged from 8-47%. when both cats lived together, 8-15% movement occurred no matter which cat was infested. the percentage of female a ... | 1994 | 8057325 |
| the cat flea: biology, ecology and control. | control failures and recurrences of infestation of dogs, cats and their home environment with the cat flea, ctenocephalides felis felis are common. attempts to control these infestations are often impaired by an inadequate understanding of the interaction of the cat flea with its hosts and environment. this review presents information on the medical and veterinary importance of the cat flea and discusses recent information on the environmental and host factors that affect its development and sur ... | 1994 | 8030176 |
| igg and ige antibodies against antigens of the cat flea, ctenocephalides felis felis, in sera of allergic and non-allergic dogs. | antigens from a soluble extract of cat fleas (fs) were separated using sds-page, and transferred to nitrocellulose paper. sera from dogs shown by use of a provocative flea feeding test to be either allergic (23 dogs) or non-allergic (20 dogs) to flea bites, were used in western blots to identify flea antigens that react with canine igg or ige. the sera were also tested in elisa against fs to quantify levels of igg and ige antibodies. antibodies present in the sera of both flea allergic and non-a ... | 1994 | 8026904 |
| flea allergy dermatitis in dogs diagnosed by intradermal skin tests. | thirty-three dogs were categorised according to their clinical signs of flea allergy dermatitis and reactivity to feeding fleas (ctenocephalides felis felis). a soluble extract of whole fleas (fs), fractions of this extract separated by chromatography, and a commercially available flea antigen extract were used in intradermal skin tests (idst) to establish the presence or absence of type i and type iv hypersensitivity. the reactions were measured and the results were analysed using three grading ... | 1994 | 7973089 |
| murine typhus: updated roles of multiple urban components and a second typhuslike rickettsia. | studies using serologic and polymerase chain reaction-(pcr) facilitated analysis of field samples from southern texas indicate the presence of rickettsia typhi and elb agent infected cat fleas, ctenocephalides felis (bouché), and the first observation of elb infected vertebrates (opossums). the elb agent is a recently described typhus-like rickettsia that is not distinguished from r. typhi or r. prowazekii by currently available serologic reagents. restriction digests of pcr products from 399 fl ... | 1994 | 7966170 |
| evaluation of a single oral dose of lufenuron to control flea infestations in dogs. | a single dose of lufenuron was administered to dogs to test its efficacy in controlling cat flea (ctenocephalides felis) infestations for at least 30 days. efficacy measurements revealed marked differences in the reproduction capability of fleas collected from dogs in the treatment vs the control group. essentially, all of the eggs collected from dogs treated with lufenuron were unable to develop into normal adult fleas. conversely, in the control group, 68.6% of the flea eggs developed into nor ... | 1994 | 7944022 |
| techniques for estimating on-animal populations of ctenocephalides felis (siphonaptera: pulicidae). | effectiveness of two sampling techniques to estimate cat flea populations were compared on beagles (short-haired dogs). overall, 23.5 and 81.6% of known flea populations on the beagles were detected using area and comb counting techniques, respectively. using comb counts, we were able to differentiate among beagles that were infested experimentally to produce densities of 21.6 (low), 42.2 (medium), and 82.5 (high) fleas per dog. using the area counting technique, we were able to differentiate be ... | 1994 | 7932613 |
| adult cat flea (siphonaptera: pulicidae) excretion of host blood proteins in relation to larval nutrition. | protein content and ion composition of host blood and feces from blood-fed adult cat fleas, ctenocephalides felis (bouché), were examined. total fecal protein differed slightly from host blood indicating that there was little digestion of host blood by adult fleas. sodium dodecyl sulfate-polyacrylamide gel electrophoresis gels of host blood and flea feces also revealed little digestion, as evidenced by the quantitatively and qualitatively similar protein banding patterns. blood and fecal ion com ... | 1994 | 7910638 |
| horizontal transmission, vertical inactivation, and stochastic loss of mariner-like transposable elements. | horizontal transmission has been well documented as a major mechanism for the dissemination of mariner-like elements (mles) among species. less well understood are mechanisms that limit vertical transmission of mles resulting in the "spotty" or discontinuous distribution observed in closely related species. in this article we present evidence that the genome of the common ancestor of the melanogaster species subgroup of drosophila contained an mle related to the mellifera (honey bee) subfamily. ... | 1995 | 7877497 |
| oral toxicity of boric acid and other boron compounds to immature cat fleas (siphonaptera: pulicidae). | oral toxicity was characterized in first-instar cat fleas, ctenocephalides felis felis (bouché), feeding on dried blood treated with boric acid. lc50 values ranged from 2.11% after 24 h to 0.21% after 7 d. in carpet tests with five different boron compounds and a number of different formulations, significant mortality for first instars was observed in all cases. in similar tests with prepupae and cocoons, there was no significant effect on mortality. the importance of these results is discussed ... | 1994 | 7836612 |
| ectoparasites of opossums and raccoons in southeastern georgia. | twelve species of ectoparasites (four fleas, three ticks, three chiggers, one macronyssid mite, and one atopomelid mite) were recovered from 42 opossums, didelphis virginiana kerr, live-trapped from september 1992 through april 1994 in southeastern georgia. the fleas, ctenocephalides felis (bouché) (prevalence = 19%) and polygenis gwyni (c. fox) (36%); the ticks, dermacentor variabilis (say) (40%) and ixodes scapularis say (19%); and the macronyssid mite, ornithonyssus wernecki (fonseca) (21%), ... | 1994 | 7815408 |
| ultrastructure of the eggs of seven flea species (siphonaptera). | eggs of seven flea species representing five families, ctenocephalides felis (bouché) (pulicidae), orchopeas leucopus (baker) and aetheca wagneri (baker) (ceratophyllidae), conorhinopsylla stanfordi stewart and epitedia faceta (rothschild) (hystrichopsyllidae), sternopsylla distincta texana (c. fox) (ischnopsyllidae), and craneopsylla minerva (rothschild) (stephanocircidae), were examined with a scanning electron microscope and are described from the resulting micrographs. in the pulicidae and c ... | 1994 | 7815392 |
| efficacy of lufenuron against developmental stages of fleas (ctenocephalides felis felis) in dogs housed in simulated home environments. | twenty-four, adult, female beagles were arranged by body weight from greatest to least and allocated to 2 groups of 12 dogs, using random numbers. dogs were housed collectively in 2 adjacent metal buildings, each divided into 4 rooms measuring 2.1 x 3.7 m. each room was paneled and carpeted and had an access door to the outside with a connecting run that measured 2.1 x 9.1 m. each run had a surface consisting of 5 cm of pea gravel overlaying 5 cm of sand, and was partially covered by an awning t ... | 1995 | 7785823 |
| a further comparison of the thumb-counting and comb-counting techniques used to determine ctenocephalides felis infestation levels on dogs. | a comparison was made to determine whether thumb-counting or comb-counting was more accurate for determining flea infestation levels on dogs when performed for equal periods of time. to accomplish this, ten beagle dogs were each infested with 100 adult fleas, ctenocephalides felis. after the fleas were allowed to disperse for 1 h the dogs were examined using the thumb-counting method. the time required to cover each dog and the number of fleas counted were recorded. thumb-counting times ranged f ... | 1995 | 7754612 |
| flea species from dogs and cats in northern greece: environmental and clinical implications. | fleas were identified after being collected from 129 dogs and 38 cats of random breed, sex and age. all these animals, infested with fleas and admitted to the clinic of medicine of the veterinary faculty in thessaloniki for routine procedures, were from different habitats and originated from various parts of northern greece. ctenocephalides canis was the most common species found on the dogs (71.3%). conversely, its prevalence in the 14 cats was substantially lower (5.3%). ctenocephalides felis ... | 1995 | 7676591 |
| residual effectiveness of insect growth regulators applied to carpet for control of cat flea (siphonaptera: pulicidae) larvae. | three insect growth regulators, fenoxycarb, methoprene, and pyriproxyfen, formulated as total release aerosols, were tested for their residual effectiveness on carpet in bioassays with cat flea, ctenocephalides felis (bouché), larvae. all treatments except methoprene produced significant mortality for the 7-mo duration of the test. in general, fenoxycarb and the higher rates of pyriproxyfen reduced adult flea emergence by > 80%. | 1995 | 7657899 |
| survival and reproduction of the cat flea (siphonaptera: pulicidae) fed human blood on an artificial membrane system. | adult cat fleas, ctenocephalides felis (bouché), survive and reproduce when fed human blood through an artificial membrane system. when a dog hair substrate was included in cages with the fleas, mean adult mortality was 2.4 after 12 d of bloodfeeding. egg production began after 3 d and was continuous for 12 d, ranging from 3 to 4 eggs per female per day. in cages without hair, mean adult mortality was 61.2% after 12 d of bloodfeeding. egg production began after 2 d, reached a maximum of two eggs ... | 1995 | 7650707 |
| larvicidal effects of boric acid and disodium octaborate tetrahydrate to cat fleas (siphonaptera: pulicidae). | borate products varied in efficacy against larval cat fleas, ctenocephalides felis felis bouché, with some effective at rates of 23 micrograms/cm2 when larvae were exposed to the compounds in sand. powdered boric acid, granular boric acid, and disodium octaborate tetrahydrate (polybor) at rates of 200 micrograms/cm2 produced < or = 90% mortality of larvae exposed in carpet for 96 h. lc50 values of larvae exposed in treated carpets for 96 h were 23 micrograms/cm2 for powdered boric acid, 40 micro ... | 1995 | 7650701 |
| species of flea found on cats and dogs in south west england: further evidence of their polyxenous state and implications for flea control. | fleas were collected from 60 dogs and 32 cats living in south west england. ctenocephalides felis felis and ctenocephalides canis were found on both dogs and cats, with a marked preponderance of c felis felis on both species. more female fleas than males were found. there was no apparent tendency for c canis to be found more often in rural areas than in suburban areas. the survey confirmed the polyxenous nature of both species of flea. the significance of this state is discussed in relation to f ... | 1995 | 7610540 |
| isolation, cultivation, and partial characterization of the elb agent associated with cat fleas. | elb rickettsiae from cat flea homogenates were recovered in tissue culture cells following sequential passage through laboratory rats and the yolk sacs of embryonated chicken eggs. seven days after inoculation of elb from the infected yolk sacs, vero cells and l929 cells were observed to contain intracellular bacteria as demonstrated by diff quik and indirect immunofluorescence assay staining. the rickettsial and elb identity of the cultured agent was confirmed by pcr detection of the 16s rrna a ... | 1995 | 7591142 |
| chlorpyrifos formulation effect on airborne residues following broadcast application for cat flea (siphonaptera: pulicidae) control. | airborne residues of 3 chlorpyrifos formulations were measured up to 50 h after broadcast treatment for flea control in residences. insecticide formulation, time after treatment, ventilation regime, and height above floor affected airborne residues. before spraying, chlorpyrifos residues were low or undetected. in nonventilated residences, chlorpyrifos residues peaked in 0-6 h after treatment at 38 ng/liter for emulsifiable, remained low at < 12 ng/liter for the microencapsulated, and sharply pe ... | 1995 | 7544814 |
| helminth parasites and arthropods of feral cats. | the prevalence (%) of helminth parasites in 327 mainly adult feral cats from 3 habitat groupings in victoria and new south wales was determined. the cestodes taenia taeniaeformis (33%) and spirometra erinacei (33%) were common; dipylidium caninum was rate (2%). the nematodes toxocara cati (28%), cyathospirura dasyuridis and cylicospirura felineus combined (27%) and aelurostrongylus abstrusus (14%) were common but their prevalence differed markedly between habitats. ollulanus tricuspis (5%), gnat ... | 1981 | 7340783 |
| influence of temperature and humidity on survival and development of the cat flea, ctenocephalides felis (siphonaptera: pulicidae). | 1981 | 7288833 | |
| various hosts of ctenocephalides felis strongylus. | infestation of exotic and indigenous breeds of cattle, sheep and goats with ctenocephalides felis strongylus in a dairy farm is reported. many of the fleas were engorged with fresh blood. traps set up in the pens caught two bush rats which were heavily infested with the same flea species, most of which were also engorged with fresh blood. it was suggested that the fleas might have been introduced into the pens by rodents such as bush rats. | 1982 | 7168133 |
| effect of ctenocephalides felis strongylus infestation on the performance of west african dwarf sheep and goats. | a study of ctenocephalides felis strongylus and of its effect on the performance of sheep and goats was made. fleas showed more affinity for sheep than goats. there was a high concentration between lamb and kid mortality and the degree of flea infestation. the clinical effects of flea infestation are highlighted. the factors responsible for flea infestation and its control are discussed. | 1982 | 7112890 |
| failure of brewer's yeast as a repellent to fleas on dogs. | active and inactive brewer's yeast, when given as a dietary supplement to dogs at the rate of 14 g/day, failed to repel or kill fleas. twenty dogs in each of 3 groups were inoculated weekly for 7 weeks with 100 unfed cat fleas (ctenocephalides felis). one group served as a control while one group received inactive and the other active yeast during the last 5 weeks of the trial. there were no significant differences in flea counts among the 3 groups during the first 4 weeks of yeast supplemental ... | 1983 | 6885593 |
| experimental infection of ectoparasitic arthropods with rickettsia prowazekii (gvf-16 strain) and transmission to flying squirrels. | epizootiologic studies conducted during the past few years showed the existence of widespread natural infection of the southern flying squirrel, glaucomys volans, with epidemic typhus rickettsiae, rickettsia prowazekii. the ecological findings strongly implicated transmission of the etiologic agent by an arthropod vector. studies were conducted under controlled laboratory conditions to determine whether ectoparasites naturally associated with flying squirrels (squirrel fleas, lice, mites and tic ... | 1981 | 6782900 |
| ctenocephalides felis felis infestation of koalas. | 1983 | 6651687 | |
| [ectoparasites of rodents of the urban region of belo horizonte, mg. i. interaction between ectoparasites and hosts]. | a rodent ectoparasite survey was made in the city of belo horizonte, minas gerais, brazil, from june 1980 to september 1982. the species of ectoparasites captured from 950 rattus norvegicus norvegicus were: xenopsylla cheopis, ctenocephalides felis felis, polyplax spinulosa, laelaps nuttalli, echinolaelaps echidninus and atricholaelaps glasgowi, the last species only represented by three specimens interchanged with wild rodent. p. spinulosa and l. nuttalli, although cosmopolitan, are recorded fo ... | 1984 | 6535917 |
| experimental murine typhus infection in the cat flea, ctenocephalides felis (siphonaptera: pulicidae). | 1984 | 6502625 | |
| [human dermatitis caused by ctenocephalides felis]. | 1984 | 6467541 | |
| the cat flea, ctenocephalides felis felis (bouché, 1835) as an intermediate host for cestodes. | 1967 | 6048565 | |
| cat flea-mongoose relationships in hawaii. | 1966 | 5904391 | |
| exceptions to the prevailing pattern of tubules (9 + 9 + 2) in the sperm flagella of certain insect species. | various deviations from classical 9 + 2 flagellar structure are found in sperm of insect species. in mature spermatozoa of a psocid, psocus, the outer flagellar tubules are not straight, but are disposed in a long-pitched helix such that they form an angle of about 8 degrees with a single dense rod located in the position usually occupied by the central pair. in young spermatids of psocus the outer tubules are straight; thus, spiraling of the flagellar tubules occurs during the course of spermio ... | 1969 | 5812428 |
| toxicity of six insecticides to the cat flea. | 1968 | 5659017 | |
| primary cell cultures derived from larvae of ctenocephalides felis (bouché) (siphonaptera). | 1971 | 5555010 | |
| cat flea control through use of dichlorvos-impregnated collars. | 1969 | 5388951 | |
| controlling cat fleas with dichlorvos-impregnated collars. | 1969 | 5388598 | |
| the use of bromocyclen for the control of the cat flea (ctenocephalides felis). | 1971 | 5102175 | |
| response of the cat flea, ctenocephalides felis (bouché), and the oriental rat flea, xenopsylla cheopis (rothschild) to electromagnetic radiation in the 300-700 nanometer range. | 1974 | 4828350 | |
| factors affecting the development of dipylidium caninum in ctenocephalides felis felis (bouché, 1835). | ctenocephalides felis felis larvae were infected with dipylidium caninum at a range of temperatures from 20 degrees - 35 degrees c at 3 mm hg saturation deficit (sd) and 30 degrees c at 8 mm hg sd. hosts were subsequently dissected at 6, 9 and 12 days after infection. four replicate experiments were performed and results of development, and host reactions analysed by the genstat computer programme. these were found to depend on the temperature and saturation deficit of the environment. unlike pr ... | 1985 | 4082734 |
| comparative toxicity of ten insecticides against the cat flea, ctenocephalides felis (siphonaptera: pulicidae). | 1985 | 4045945 | |
| [fleas (siphonaptera) in the human environment. analytic findings between 1961-1983 in the district of leipzig (east germany). ii. spacial and temporal distribution]. | during the last 20 years there has been very little infestation with fleas in the district of leipzig. out of the 8 species only pulex irritans and ctenocephalides felis are of hygienic concern. greater numbers of them were found in densely populated urban districts. origins of infestation were mainly dogs and cats kept in unhygienic conditions, and retreats of feral cats. there have been changes in the dominance of fleas associated with man. p. irritans probably had been the dominant species fo ... | 1985 | 4003847 |
| distribution and control of cat fleas in homes in southern california (siphonaptera: pulicidae). | 1986 | 3950185 | |
| insecticide resistance in the cat flea (siphonaptera: pulicidae). | 1986 | 3950184 | |
| [flea detection (siphonaptera) in dogs at the intake area of the magdeburg polyclinic for small house and zoo animals]. | two random investigations carried out in 1981/1982 established 203 fleas of 5 species in a sex incidence of 1:2.4 (60 males/143 females) on 48 dogs: ctenocephalides felis occurred most frequently in an extent of infestation of 13 (1981) and 9 (1982) in 24 dogs with a population density of 1.1 to 1.9 specimens/animals, followed by c. canis with 8 (1981) and 11 (1982) from 24 dogs in a greater density of 2.3 to 5 per host. in this c. felis occurs more frequently in "town dogs": 15 identifications ... | 1985 | 3879113 |
| development of resistance to malathion in cat flea (siphonaptera: pulicidae). | 1986 | 3805485 | |
| insect growth regulators: mode of action on the cat flea, ctenocephalides felis (siphonaptera: pulicidae). | 1986 | 3795235 | |
| residual efficacy of insecticides applied to carpet for control of cat fleas (siphonaptera: pulicidae). | 1986 | 3745632 | |
| toxicity of d-limonene, the major component of citrus peel oil, to all life stages of the cat flea, ctenocephalides felis (siphonaptera: pulicidae). | 1986 | 3735346 | |
| amitraz: a tick and flea repellent and tick detachment drug. | a topical formulation of amitraz (mitaban liquid concentrate, the upjohn company, kalamazoo, michigan, u.s.a.) was evaluated as a tick repellent and detachment agent, and flea repellent. the diluted liquid concentrate (250 p.p.m. active drug) was topically applied as a single treatment to dogs; the concentration was identical to the rate recommended for treatment of demodicosis and scabies. brown dog tick (rhipicephalus sanguineus) and american dog tick (dermacentor variabilis) populations were ... | 1986 | 3723659 |
| the role of basophils in the immunopathogenesis of hypersensitivity to fleas (ctenocephalides felis) in dogs. | biopsies taken of skin test sites from 10 dogs allergic to fleas were fixed in karnovsky's fixative and embedded in methacrylate. one micron sections were stained with acid giemsa for identification of basophils. this cell was identified in most biopsies taken at intervals from 1 hour to 48 hours post-injection. the proportion was highest between 4 hours and 18 hours and had substantially fallen by 48 hours. the highest number of basophils recorded as a percentage of the inflammatory infiltrate ... | 1987 | 3629937 |
| detection of specific ige antibodies towards cat flea (ctenocephalides felis felis) in patients with suspected cat allergy. | cat flea sensitivity is considered one of the most important skin diseases in cats and dogs. cat fleas, however, are also a growing allergen problem for humans. cat flea-specific ige antibodies were studied in serum samples from 70 patients with suspected cat allergy, using rast-based techniques and the nitrocellulose immunoblotting method. results from rast studies, using cat and cat flea as allergosorbents, showed that 46% of the patients were rast positive against both cat and cat flea. 9% of ... | 1987 | 3592140 |
| effects on the development of dipylidium caninum and on the host reaction to this parasite in the adult flea (ctenocephalides felis felis). | temperature was found to be a major factor affecting the development of dipylidium caninum and the presence of a host reaction of adult ctenocephalides felis felis to d. caninum. adult fleas reared at 30-32 degrees c contained fully developed metacestodes when they emerged from their cocoons. however at lower temperatures, d. caninum could not complete development until the flea hosts had spent some time on their mammalian hosts. it was the surface temperature of the mammals (31-36 degrees c) an ... | 1987 | 3575292 |
| flea species from dogs and cats in north-central florida. | fleas were identified after removal from 100 dogs and 60 cats following routine presentation at a veterinary hospital in gainesville, fl. ctenocephalides felis comprised 92.4% and 99.8% of the fleas taken from dogs and cats respectively. pulex irritans accounted for 7.5% of the fleas found on dogs and for 0.2% of those found on cats. echidnophagia gallinacia was found on one dog. of the 100 dogs, 80 were infested with c. felis alone, one with p. irritans alone, and 18 carried a mixed infestation ... | 1987 | 3564340 |
| flea control on pets in southern africa. | aspects of the biology and life-cycle of the flea which are important to the practising veterinarian are discussed. the "cat flea", ctenocephalides files is the most prevalent species on dogs and cats in those parts of the world where it has been surveyed. whether the flea is a temporary or permanent obligatory parasite is still a controversy. the insecticides and product formulations available for flea control in south africa are reviewed with emphasis on the systematic agent, fenthion. practic ... | 1986 | 3537292 |
| aspects of the immunopathogenesis of flea allergy dermatitis in dogs. | this paper reviews the current data on the nature of the allergen(s) of the cat flea, ctenocephalides felis and on some of the factors that determine the development and maintenance of the allergic state. the role of immediate hypersensitivity mediated by ige, delayed hypersensitivity and of cutaneous basophil hypersensitivity in the immunopathogenesis is discussed. finally, data on the nature of immunologic non-reactivity is presented and the prospects for therapeutic immunologic intervention d ... | 1987 | 3433670 |
| survival and reproduction of artificially fed cat fleas, ctenocephalides felis bouché (siphonaptera: pulicidae). | 1988 | 3392715 | |
| toxicity of linalool to life stages of the cat flea, ctenocephalides felis (siphonaptera: pulicidae), and its efficacy in carpet and on animals. | 1988 | 3357170 | |
| lack of behavioral responses of the cat flea, ctenocephalides felis (siphonaptera: pulicidae), to a broad spectrum of ultrasound. | 1988 | 3351872 |