Exposure to Volatiles
There was significant effect of the different oils against the pathogenic strains(Fig. 1).
Overall (for the all strains groups) the commercial oil (from India and cold press) gave the higher inhibition percent.
For the Fusarium group, the three oils gave the same results.
According the groups, the oils obtained by cold press or by the Soxhlet method gave better inhibition of growth.
The method of neem oil extraction had an influence on the composition of the oil.
Oil extracted by the Soxhlet method contained more hydrocarbons compounds than the two oils obtained by cold press.