Figure 1.

Larvicidal activity of crude extracts from Laurencia. dendroidea collected from two different localities against Aedes aegypti, Rockefeller strain. Extract 1 was derived from seaweed collected at “Azeda” beach in Búzios and the Extract 2 was derived from seaweed collected at “Vermelha” beach in Parati. Five parts per million of each extract were used in the experiments. Results are means of three independent experiments (ANOVA, followed by Tukey’s multiple comparisons test; **** p < 0.0001; ns, denotes no significant difference).