|
|
|
|
|
| Dantas,A.C.S.; Freire,D.P.; Souza,G.R.; Almeida,J.R.G.S.; Rolim,L.A.; Castro,R.N.; Horta,M.C.. |
| ABSTRACT The acaricidal activity of crude ethanolic extract and fractions from the leaves of Morus nigra (Moraceae) was carried out on female cattle ticks Rhipicephalus microplus, using the adult immersion test. The mortality and fertility of females exposed to different concentrations of hexane, chloroform and ethyl acetate fractions, as well as ethanolic extract of M. nigra with concentrations of 5, 10 and 25mg/ml were evaluated using three treatment groups, two control groups and triplicate tests. The study also identified the main phenolic compounds of the extract and fractions of this species by HPLC. The chloroform fraction of leaves of M. nigra (25mg/mL) showed the best results for this species, obtaining 62.6% of inhibition of oviposition, 39.3% of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tick control; Acaricide; Plant extract; Mulberry; HPLC. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300523 |
| |
|
|
| Keller,K.M.; Deveza,M.V.; Koshiyama,A.S.; Tassinari,W.S.; Barth,O.M.; Castro,R.N.; Lorenzon,M.C.. |
| The Brazilian Sac Brood is a disease that affects apiaries of Africanized bee hives in Brazil, thereby making them susceptible to high losses. This study investigated the pathogenicity of Africanized bee hives by the entomopathogenic fungi in a Brazilian Sac Brood endemic region. The degree of fungal contamination, presence of mycotoxins in beehive elements, and vulnerability of healthy beehives in environments subjected and not subjected to the disease were investigated. From the contaminating fungal load, species that are mycotoxin producers and pathogenic causing mortality in the bees have been isolated. The analysis of bee pollen and bee bread samples did not show the presence of the toxic pollen of Stryphnodendron (Fabaceae), which has been indicated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bee health; Beekeeping; Molds; Mycotoxins. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000501471 |
| |
|
|
|
