| [evaluation of the toxic activity of the pyrethroid insecticides deltamethrin and lambdacyhalothrin in two panamanian field populations of rhodnius pallescens (hemíptera: reduviidae)]. | systematic evaluation of the susceptibility of disease vectors to insecticides permits the detection of the development of insecticide resistance over time. this is necessary to evaluate the effectiveness of control methods and to plan management strategies of the resistance. | 2011 | 22159478 |
| chromosome variability in the chagas disease vector rhodnius pallescens (hemiptera, reduviidae, rhodniini). | rhodnius pallescens is the main vector of trypanosoma cruzi in panama and one of the most relevant secondary vectors in colombia. despite the importance of this species, there is limited knowledge about the genetic variability along its geographical distribution. in order to evaluate the degree of karyotype variability we analyzed the meiotic behavior and banding pattern of the chromosomes of 112 males of r. pallescens coming from different regions of colombia and panama. using the c-banding tec ... | 2008 | 18425268 |
| dietary specialization influences the efficacy of larval tortoise beetle shield defenses. | plant chemical defenses and escape from natural enemies have been postulated to select for dietary specialization in herbivorous insects. in field and laboratory bioassays, we evaluated the effectiveness of intact and chemically modified larval shield defenses of the generalist chelymorpha alternans and the specialists acromis sparsa and stolas plagiata (chrysomelidae: cassidinae) against three natural predators, using larvae reared on two morning glory (convolvulaceae) species. we assessed whet ... | 2005 | 16001225 |
| sylvatic hosts of rhodnius pallescens (hemiptera: reduviidae) nymphs in the panama canal zone. | | 1980 | 6988592 |
| host feeding profiles of rhodnius pallescens (hemiptera: reduviidae) in rural villages of central panama. | rhodnius pallescens, reported to be the principal vector of chagas' disease in central panama, has been shown to feed on opossums, anteaters, sloths, rodents, birds and, rarely, lizards in sylvatic habitats in this country; however, the extent of its anthropophagic affinities in rural areas has never been determined. the host selections of 1,340 r. pallescens from domestic and peridomestic habitats of three panamanian villages were determined by microcapillary precipitin tests. slightly more tha ... | 1981 | 6782901 |
| prevalence of trypanosoma cruzi and trypanosoma rangeli in triatomines (hemiptera: reduviidae) collected in the republic of panama. | | 1973 | 4567850 |