Adulticidal activity against Stegomyia aegypti (Diptera: Culicidae) of three Piper spp.

Abstract

Three Piper species, Piper longum, P. ribesoides and P. sarmentosum, were selected for investigation of adulticidal potential against Stegomyia aegypti, a main vector of dengue and dengue haemorrhagic fever. Successive extraction by maceration with 95% ethanol showed percentage yields of ethanolic extracts, which derived from P. longum, P. ribesoides and P. sarmentosum, of 8.89, 3.21 and 5.30% (w/w), respectively. All Piper extracts illustrated an impressive adulticidal activity when tested against female mosquitoes by topical application. The susceptibility of St. aegypti females to ethanol-extracted Piper was dose dependent and varied among the plant species. The highest adulticidal effect was established from P. sarmentosum, followed by P. ribesoides and P. longum, with LD50 values of 0.14, 0.15 and 0.26 microg/female, respectively. The potential of these Piper species, as possible mosquitocides, established convincing activity for further researches to develop natural substances for combat against adult mosquitoes.

Toxicity on Dengue Mosquito Vectors Through Myristica fragrans-Synthesized Zinc Oxide Nanorods, and Their Cytotoxic Effects on Liver Cancer Cells (HepG2)

“…The root extract of Valeriana jatamansi exhibited adulticidal activity on adult A. stephensi, A. culicifacies, A. aegypti, A. albopictus and C. quinquefasciatus with LC 90 of 0.14, 0.16, 0.09, 0.08 and 0.17, and 0.24, 0.34, 0.25, 0.21 and 0.28 mg/cm 2 , respectively [37]. High adulticidal effect was found for Piper sarmentosum, followed by P. ribesoides and P. longum, with LD 50 of 0.14, 0.15 and 0.26 lg/female, respectively [38]. Testing the C. sinensis extract, the LC 50 and LC 90 values were 272.19 and 457.14 ppm, A. stephensi; 289.62 and 494.88 ppm, A. aegypti; 320.38 and 524.57 ppm, respectively [36].…”

Do Chenopodium ambrosioides-Synthesized Silver Nanoparticles Impact Oryzias melastigma Predation Against Aedes albopictus Larvae?

“…FTIR spectrum of AgNP prepared using the C. ambrosioides leaf extract showed peaks at 3431. 36 (Fig. 6).…”

Review on the ethnomedicinal, phytochemical and pharmacological properties of Piper sarmentosum: scientific justification of its traditional use

“…The results demonstrated that EEPS WP had a prominent toxic effect on the anal papillae leading to their morphological deformation. Choochote et al (2006) Sawangjaroen et al (2004) determined the antiamoebic activity of methanolic extracts of P. sarmentosum root together with two methanolic extracts of Quercus infectoria nut gall and Piper longum fruit gall against Entamoeba histolytica infecting the caecum of mice. The P. sarmentosum was obtained from the area around Hatyai, Songkhla, Thailand.…”