Open AccessEffect of the Aqueous Extract of Neem Leaves (Azadirachta indica A. Juss.) on the Control of Costalimaita ferruginea (Fabricius, 1801)
Author(s) -
Roldão Carlos Andrade Lima,
Mauricélia Ferreira Almeida,
Adriana de Sousa Freitas,
Andressa Layane Ferreira Linhares,
Bianca Pinheiro da Costa Neiva,
Brunna Tavares da Silva Brito Sousa,
Jeferson Pereira da Silva,
Kaio Lucena Vidal,
Felipe Ferreira da Silva,
Gabriel Alves Santos,
Raylson Marcelo Fernandes de Lima
Publication year - 2021
Publication title -
annual research and review in biology
Language(s) - English
Resource type - Journals
ISSN - 2347-565X
DOI - 10.9734/arrb/2021/v36i930421
Subject(s) - azadirachta , eucalyptus , petri dish , acaricide , aqueous extract , toxicology , biology , horticulture , completely randomized design , botany , traditional medicine , veterinary medicine , medicine , genetics
Aims: Evaluate the insecticidal effect of the aqueous extract of neem leaves on the control of
Costalimaita ferruginea in eucalyptus.
Place and Duration of Study: Entomology Laboratory of the Center for Agricultural Sciences (CCA) of the State University of the Tocantina Region of Maranhão (UEMASUL) between November 2016 and July 2017.
Methodology: Neem aqueous extract solutions were tested at concentrations of 40, 60 and 80%, and the control group treated with mineral water. Leaves of eucalyptus seedlings were immersed in each concentration and individualized in Petri dishes together with the insects. The design was completely randomized with four treatments and ten repetitions, each repetition consisting of a Petri dish with an insect and a eucalyptus leaf. The evaluations were carried out daily, analyzing the mortality of adults, and the leaves were replaced by others submitted to the same treatment and procedure described above.
Results: In the evaluations of 12, 60, 72 and 84 hours there was no significant difference. 36 hours after the implementation of the experiment, the 60% neem concentration resulted in 100% mortality of specimens.
Conclusion: The 60% neem concentration is the most efficient due to its rapid effect on C. ferruginea mortality and economy of raw material for production.