Chemical composition and larvicidal activity of Zanthoxylum armatum against diamondback moth, Plutella xylostella

Abstract

The diamondback moth, Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) is the most serious pest of cruciferous crops grown in the world causing economic yield loss. Several synthetic insecticides have been used against P. xylostella but satisfactory control was not achieved due to development of resistance to insecticides. Therefore, the present study was carried out to screen different fractions of Zanthoxylum armatum for their insecticidal activities against second instar larvae of P. xylostella. Results indicate, all the fractions showed activity to P. xylostella. However, n-hexane fraction of Z. armatum showed maximum larvicidal activity with minimum LC50 value of 2988.6 ppm followed by ethanol (LC50 = 12779.7 ppm) and methanol fraction (LC50 = 12908.8 ppm) whereas chloroform fraction was least toxic (LC50 = 16750.6 ppm). The GC-MS analysis of n-hexane fraction of leaf extract showed maximum larvicidal activity, which may be due to two major compounds i.e. 2-undecanone (19.75%) and 2-tridecanone (11.76%).

The complete chloroplast genome sequence of Zanthoxylum armatum

“…It is used as carminative, stomachic, and anthelmintic and in the treatment of toothache (Gilani et al 2010). Several reports showed that the extract of Z. armatum had anti-larvicidal (Kumar et al 2016), hepatoprotective (Ranawat et al 2010), antinociceptive, and anti-inflammatory (Guo et al 2011). However, there have been no genomic studies on Z. armatum.…”

Comprehensive metabolic profiling of Zanthoxylum armatum and Zanthoxylum acanthopodium leaves, bark, flowers and fruits using ultra high performance liquid chromatography

“…Standards of catechin (1), hesperidin (2), eudesmin (3), armatamide (4), kobusin (5), fargesin (6), sesamin (7), asarinin (8), planispine-A (9), (2E, 7E, 9E)-N-(2-hydroxy-2-methylpropyl)-6,11-dioxo-2,7,9-dodecatrienamide (10), methyl cinnamoate (11), hydroxy-α-sanshool (12) and α-sanshool (13) were isolated from ZA and identified by comparison of their spectral data (MS and 1D NMR) with reported data [10,[16][17][18][19][20][21][22][23][24]. Their structures are shown in Figure 1.…”

Use of laser-induced break spectroscopy for the determination of major and trace elements in Zanthoxylum armatum

“…Shah [17] used GC and GC/MS and reported that the oil content of ZA contains 72% linalool, 12.2% methyl cinnamate, 6.2% of limonene, and 5.3% of βphellandrene. Kumar et al [18] also used the GC-MS to analyze the chemical composition and larvicidal activity of ZA against diamondback moth, Plutella xylostella. Bisht and Chanotiya [19] employed the capillary gas chromatography (GC-FID) and gas chromatography-mass spectrometry (GC-MS) to identify the major classes of compounds found in the leaf of ZA.…”