Background: Abate to control Aedes aegypti larvae has negative effects on living creatures. It has encouraged this research to use the extract of Piper betle L. leaf as
natural pesticide to kill A. aegypti larvae.This research also using exposure of sun’s UV (Ultra Violet) light to increase biolarvicidal effect of the extract’s active substances.
Method: This experiment used 10 larvae for each concentration. The extract placed at dark and sun exposed area. The concentration was 150 mg/L, 200 mg/L, and 250 mg/L for each storage method. Control of 10 larvae in 1L water container was also used. Observation was done on 6th, 12th, 18th, and 24th hour.
Result: There’s a significant difference of letal effect in different concentration with p=0,029 (p<0,05) in extract from dark area and p=0,014 (p<0,05) in extract from
sun exposed area, and in different time of exposure with p=0,000 (p<0,005) in both storage method. Letal effect in 250 mg/L concentration of extract counted at 24th
hour was 43,3% in extract from dark area and 56,7% in extract from sun exposed area.
Conclusion: Piper betle L. leaf extract has biolarvicidal effect on A. aegypti larvae. With higher concentration and longer exposure, more dead larvae counted.
Biolarvicidal effect of extract from sun exposed area is higher than dark area. |