The results showed that the activities of 3 essential oils at 31.25 ppm and 62.50 ppm concentrations were killed the larvae were less than 50% after 24 hours of exposure.
On the contrary, the concentration of these three essential oils at 125-1000 ppm showed the mortality of larvae 80-100%
and the larvae were killed more than 80% within 6 hours after exposure,
except 125 ppm of peppermint that killed larvae more than 50% in 12-18 hours.