Author/Authors :
Tomilhero Frias، Angélica Albuquerque نويسنده P?s-Graduanda de Especializaç?o em Biotecnologia-Universidade Estadual de Maring? (UEM), Maring?, PR. , , Caixeta، Marilda Pereira نويسنده Departamento Departamento de Agronomia, Universidade Estadual de Maring? (UEM), Maring?, PR , , Oliveira، Ricardo V. نويسنده Gynecology and Obstetrics Service, Federal University of Maranh?o (UFMA), S?o Luiz, MA, Brazil. , , Conte، Helio نويسنده Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maring?, PR. ,
Abstract :
The potential of biofungicides such as plant
extracts and essential oils is being assessed to minimize the
use of chemicals, which are harmful to humans and the
environment. This work aimed to evaluate the in vitro activity
of commercially available neem oil on the mycelial growth of
the phytopathogenic fungi Corynespora cassiicola,
Colletotrichum gloeosporioides, and Fusarium spp. The
evaluation was performed using four different concentrations
(5000, 2500, 1250, and 625 ppm) of the commercial product.
The results showed a decrease in the radial size of the
colonies with increasing concentrations of neem oil. In
Corynespora cassiicola, a reduction in mycelial growth was
observed using the 2500 ppm concentration, whereas in
Fusarium spp. and Colletotrichum gloeosporioides, a
reduction was observed using the 625 ppm concentration.
