Spatial and temporal distribution of mosquito larvicidal compounds in mangroves

Eco-friendly approach to control dengue vector Aedes aegypti larvae with their enzyme modulation by Lumnitzera racemosa fabricated zinc oxide nanorods

“…aegypti larvae by L. racemosa leaf acetone extract with an LC 50 value of 8 mg/L. Similar results were also recorded by Ali et al [70] in E. agallocha leaf ethanol extract on Ae. aegypti larvae with LC 50 value of 67.1 mg/ml.…”

Efficacy of Mosquito Repellent and Adulticidal Activities of Halophila Ovalis Extract Against Filaria Vectors

“…The seaweed extract of Halophila ovalis showed significant repellent and adulticidal activities. The results were comparable with early studies of Ali et al, reported the seaweed extract, C. racemosa showed toxicity against 4th instar larvae of Aedes aegypti, Culex quinquefasciatus, Anopheles stephensi with equivalent (LC 50 =0.0556 ± 0.0103 μg/mL, 0.0675 ± 0.1360 μg/mL and 0.0661 ± 0.0076 μg/mL) respectively [12]. Ali et al, [10] reported that column chromatographic fractions of R. mucronata bark extracts (E1) showed maximum larvicidal activity (LC 50 = 0.0496 ± 0.0085 μg/ml and LC 90 = 0.1264 ± 0.052 μg/ml) , acetone extract (LC 50 = 0.0564 ± 0.0069 μg/ml and LC 90 = 0.1187 ± 0.05 μg/ml), ethanolic fraction (E4) of R. mucronata stilt root extracts showed maximum larvicidal activity (LC 50 = 0.0484 ± 0.0078 μg/ml and LC 90 = 0.1191 ± 0.025 μg/ml) and acetone fraction (A3) (LC 50 = 0.0419 ± 0.0059 μg/ml and LC 90 = 0.0955 ± 0.069 μg/ml).…”

“…Ali et al, [10] reported that column chromatographic fractions of R. mucronata bark extracts (E1) showed maximum larvicidal activity (LC 50 = 0.0496 ± 0.0085 μg/ml and LC 90 = 0.1264 ± 0.052 μg/ml) , acetone extract (LC 50 = 0.0564 ± 0.0069 μg/ml and LC 90 = 0.1187 ± 0.05 μg/ml), ethanolic fraction (E4) of R. mucronata stilt root extracts showed maximum larvicidal activity (LC 50 = 0.0484 ± 0.0078 μg/ml and LC 90 = 0.1191 ± 0.025 μg/ml) and acetone fraction (A3) (LC 50 = 0.0419 ± 0.0059 μg/ml and LC 90 = 0.0955 ± 0.069 μg/ml). Kovendan et al [11] [10,12]. Similarly, the present study was made an attempt and against C. quinquefasciatus were observed at maximum activity of minimum concentration at 250 µL.…”

“…The extract preparation was done by following the method of Ali et al, [12] with slight modification.…”

“…Development of resistance to commercial acaricides by parasites has stimulated the search for new control strategies [11]. Plant parts have been provided as a good source of novel drug compounds [12]. However, mosquitoes have successfully adapted to most plant based insecticides by becoming physiologically or behaviorally resistant to them [13].…”