| Author | Vasconcelos, Mauricio Carvalho de | |
| Author | Amorim, Alziro de | |
| Access date | 2020-05-07T19:25:29Z | |
| Available date | 2020-05-07T19:25:29Z | |
| Document date | 2003 | |
| Citation | VASCONCELLOS, Mauricio Carvalho de; AMORIM, Alziro de. Molluscicidal Action of the Latex of Euphorbia splendens var. hislopii N.E.B. (“Christ’s Crown”) (Euphorbiaceae) against Lymnaea columella (Say, 1817) (Pulmonata: Lymnaeidae), Intermediate Host of Fasciola hepatica Linnaeus, 1758 (Trematode: Fasciolidae). 1- Test in Laboratory. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 98, n. 4, p. 557-563, June 2003. | pt_BR |
| ISSN | 0074-0276 | pt_BR |
| URI | https://www.arca.fiocruz.br/handle/icict/41162 | |
| Language | eng | pt_BR |
| Publisher | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. | pt_BR |
| Rights | open access | |
| Subject in Portuguese | Euphorbia splendens var. hislopii | pt_BR |
| Subject in Portuguese | Lymnaea columella | pt_BR |
| Subject in Portuguese | Controle | pt_BR |
| Subject in Portuguese | Moluscicida vegetal | pt_BR |
| Title | Molluscicidal Action of the Latex of Euphorbia splendens var. hislopii N.E.B. (“Christ’s Crown”) (Euphorbiaceae) against Lymnaea columella (Say, 1817) (Pulmonata: Lymnaeidae), Intermediate Host of Fasciola hepatica Linnaeus, 1758 (Trematode: Fasciolidae). 1- Test in Laboratory | pt_BR |
| Type | Article | |
| DOI | 10.1590/S0074-02762003000400025 | |
| Abstract | The latex action of Euphorbia splendens var. hislopii (Christ’s Crown) against snails Lymnaea columella, intermediate host of Fasciola hepatica, derived from irrigation ditches of the Station of Pisciculture at Universidade Federal
Rural do Rio de Janeiro, was studied in the laboratory. Lab bioassays, using aqueous solutions of the latex, varying
between 0.1 and 10 mg/l, have proven molluscicidal activity of the product collected on the same day the tests were
performed, during the four seasons of the year, finding the following lethal concentrations (LC90): 1.51 mg/l in the
spring; 0.55 mg/l in the summer; 0.74 mg/l in the fall and 0.93 mg/l in winter, after 24 h exposure of the snails,
showing significant differences among the seasons of the year (ANOVA test, F = 11.01, G.L.= 3/33, p < 0.05), as well
as among the concentrations (ANOVA test, F = 27.38, G.L.= 11/33, p < 0.05). In the summer, mortality reached 100%
from concentration at 0.6 mg/l, the same during fall and in winter as of 1 mg/l, while in spring it only reached 100%
mortality as of 2 mg/l. Mortality in the controls was low, reaching 5% in the summer and winter and 10% in the fall
and spring. None of the samples died.
During the assay, with an aqueous solution of the latex at a concentration of 5 mg/l, in order to check the time of
duration of the product effect, in the laboratory, it was observed that the molluscicidal activity remained stable up
to the 15th day after the beginning of the test with 100% mortality of L. columella, gradually losing its effect until the
23rd day, when we no longer observed animal mortality. In the control group, there was a random daily variation in
mortality rate ranging 0-50% after 48 h of observation for 30 days. | pt_BR |
| Affilliation | Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Biologia. Núcleo de Biologia e Controle de Endo e Ectoparasitas de Interesse Médico e Veterinário. Rio de Janeiro, RJ, Brasil. | pt_BR |
| Affilliation | Universidade Federal Rural do Rio de Janeiro. Instituto de Veterinária. Seropédica, RJ, Brasil. | pt_BR |
| Subject | Vegetal molluscicide | pt_BR |
| Subject | Euphorbia splendens var. hislopii | pt_BR |
| Subject | Lymnaea columella | pt_BR |
| Subject | Control | pt_BR |
| e-ISSN | 1678-8060 | |
