Inhibitory action of neem aqueous extract (Azadirachta indica A. Juss) on the vitellogenesis of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) ticks.

@article{Denardi2011InhibitoryAO,
  title={Inhibitory action of neem aqueous extract (Azadirachta indica A. Juss) on the vitellogenesis of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) ticks.},
  author={Sandra Eloisi Denardi and Gerv{\'a}sio Henrique Bechara and Patr{\'i}cia R de Oliveira and Maria Izabel Camargo Mathias},
  journal={Microscopy research and technique},
  year={2011},
  volume={74 10},
  pages={889-99}
}
The present study revealed unheard of data about the action of aqueous extracts of neem leaves (Azadirachta indica) on the vitellogenesis of Rhipicephalus sanguineus ticks, proving that these extracts in 10 and 20% concentrations do not have the potential to kill the females; however, in lower concentrations (10%) provokes great morphological alterations in germinative cells such as the emergence of extended cytoplasmic vacuolization areas as well as the fragmentation of the germinal vesicle… CONTINUE READING