Producción de extractos de azadirachta indica (nim) y evaluación de su actividad insecticida para el control de sitophilus oryzae
Este trabajo tuvo como objetivo evaluar el efecto tóxico de los extractos provenientes de las hojas de Azadirachta indica (nim), como sustituto de los insecticidas convencionales aplicados en Sitophilus oryzae (gorgojo del arroz) y como alternativa para mitigar los efectos nocivos de los insecticida...
- Autores:
-
Guerrero Rodriguez, Julian Mauricio
- Tipo de recurso:
- http://purl.org/coar/version/c_b1a7d7d4d402bcce
- Fecha de publicación:
- 2016
- Institución:
- Universidad Industrial de Santander
- Repositorio:
- Repositorio UIS
- Idioma:
- spa
- OAI Identifier:
- oai:noesis.uis.edu.co:20.500.14071/34305
- Palabra clave:
- Azadirachta Indica (Nim)
Sitophilus Oryzae (Gorgojo Del Arroz)
Bioinsecticida
Extractos Y Azadiractina (Aza).
This work aimed to evaluate the toxic effect of the extracts from the leaves of Azadirachta indica (neem)
as a substitute for conventional insecticides applied in Sitophilus oryzae (rice weevil) and as an alternative to mitigate the harmful effects of synthetic insecticides. Solid-liquid extraction with water
ethanol
ethyl acetate and hexane by soaking for 24 hours at room temperature and Soxhlet extraction for 5 hours. The extracts were diluted at a concentration of 3% w / v by rotary evaporation. The methods of impregnation substrate and contact of nonporous surfaces were used to measure the toxicity. As positive controls were used Malathion and Deltamethrin at 10 ppm. High performance liquid chromatography (HPLC) was used to characterize the extracts and AZA
the compound attached to the insecticidal activity. We used UV-Vis spectrophotometry to determine the presence of other active compounds. After 144 hours of exposure
the greater toxic effect corresponded to ethanol extract by maceration with 83% mortality ± 8 in contact with non-porous surface
which showed statistically significant differences compared to negative controls
confirming their insecticidal activity Weevils adult rice. Similarly
this extract were obtained 0.01 ± 1.28% w/v AZA
the more of this compound to the other extracts. The results show that leaf extracts of neem have insecticidal and could be a replacement to conventional insecticides to control rice weevil
- Rights
- License
- Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)