All the essential oils induced 100%
mortality against Ae. aegypti larvae by 60
minutes (Table 3). Am. biflorum oil and Z.
cassumunar oil had the greatest larvicidal
activity at 1 minute with 43.2% mortality;
a significant difference from the other essential
oils. Z. cassumunar oil gave 100%
larval mortality at 5 minutes. The essential
oils from Am. biflorum, B. rotunda, Z. ottensii
and Z. zerumbet were highly effective
against A. aegypti larva with 97.6% and
100% mortality at 5 and 10 minutes, re