| blood meal identification of selected mosquitoes in rio de janeiro, brazil. | abstract. the blood meal sources of 5 species (mansonia titillans, aedes scapularis, culex quinquefasciatus, coquillettidia shannoni, and anopheles peryassui) collected in conceição do macacu, in the southeastern brazilian state of rio de janeiro, were examined with the precipitin test. of the 1,128 mosquitoes collected, 907 (80.4%) reacted to some antisera. although all 5 species were eclectic in their feeding habits, ma. titillans and ae. scapularis fed mostly on birds, while cx. quinquefascia ... | 2010 | 20402346 |
| the entomopathogenic potential of aspergillus spp. in mosquitoes vectors of tropical diseases. | eleven strains of the most frequent aspergillus species found in a survey of brazilian mosquitoes collected in the states of minas gerais and rio de janeiro, brazil, were used for bioassays in second-stage larvae of aedes fluviatilis and culex quinquefasciatus. aspergillus ochraceus, a. kanagawaensis and one strain of a. sulphureus were most effective, causing mortality in at least 80% of the larvae of the two mosquito species tested. variations in entomopathogenic capacity were observed in the ... | 2001 | 11314246 |
| mosquito frequency and feeding habits in an enzootic canine dirofilariasis area in niterói, state of rio de janeiro, brazil. | heartworm, a chronic fatal mosquito-borne canine disease, is frequently diagnosed in dogs from the state of rio de janeiro, where its prevalence is 29.7% in the city of niterói. nevertheless it is rarely detected in cats (0.8%) from the same state. dogs are the primary source of infection to mosquitoes. because cats either do not demonstrate microfilaremia or it is too low and transient for transmission. a mosquito survey was conducted in itacoatiara, niterói, from march 1995 to february 1996, u ... | 1998 | 9698883 |
| identification of entomopathogenic bacillus isolated from simulium (diptera, simuliidae) larvae and adults. | entomopathogenic bacteria isolated from simulium larvae and adults from breeding sites in the states of são paulo and rio de janeiro, brazil, were identified as 18 strains of bacillus thuringiensis and one of b. sphaericus. most of these strains were serotyped according to their flagellar antigens. however, nine of the b. thuringiensis samples, could not be serotyped and were designated as "autoagglutinating"; they were also shown to be toxic in preliminary tests against aedes aegypti larvae. ad ... | 2001 | 11685272 |